physics paper-1 · the diagrams show the reading on the stopwatch when the runner starts running,...
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Physics-PAPER-1
SR.NO
TOPIC PAGE NO:
1 GENERAL PHYSICS • DENSITY/MASS/VOLUME/
MEASUREMENTS• FORCES• WORK ENERGY POWER• MOTION• PRESSURE
2 THERMAL PHYSICS 3 ELECTRICITY & MAGNETISM 4 WAVES-LIGHT & SOUND 5 ATOMIC PHYSICS SAMPLE
COPY
BLANK PAGE
SAMPLE C
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1 A scientist needs to determine the volume of a small, irregularly shaped rock sample. Only a rule and a measuring cylinder, partially filled with water, are available.
measuring cylinder
rock sample rule
cm3
cm
To determine the volume, which apparatus should the scientist use?
A both the measuring cylinder and the rule
B neither the measuring cylinder nor the rule
C the measuring cylinder only
D the rule only
2 A student uses a stopwatch to time a runner running around a circular track. The runner runs two laps (twice around the track). The diagrams show the reading on the stopwatch when the runner starts running, at the end of the first lap, and at the end of the second lap.
reading whenrunner starts
reading at endof first lap
reading at endof second lap
What is the time taken for the runner to run the second lap?
A 0 min 50 s B 1 min 10 s C 1 min 13 s D 2 min 03 s
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DENSITY, MASS VOLUME AND MEASUREMENTS
SAMPLE C
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6 The graph shows how weight varies with mass on planet P and on planet Q.
0 20 40 60 80
400
300
200
100
0
weight / Nplanet P
planet Q
mass / kg
An object weighs 400 N on planet P. The object is taken to planet Q.
Which row is correct?
mass of object on planet Q / kg
weight of object on planet Q / N
A 40 200
B 40 400
C 80 200
D 80 400
7 The diagram shows a rectangular block of density 2 g / cm3.
2 cm
2 cm
3 cm
What is the mass of the block?
A 2 g B 6 g C 14 g D 24 g
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SAMPLE C
OPY
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3 A scientist needs to determine the volume of a small, irregularly shaped rock sample. Only a rule and a measuring cylinder, partially filled with water, are available.
measuring cylinder
rock sample rule
cm3
cm
To determine the volume, which apparatus should the scientist use?
A both the measuring cylinder and the rule
B neither the measuring cylinder nor the rule
C the measuring cylinder only
D the rule only
4 The diagram shows a rectangular block of density 2 g / cm3.
2 cm
2 cm
3 cm
What is the mass of the block?
A 2 g B 6 g C 14 g D 24 g
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SAMPLE C
OPY
0625/11/M/J/11
1 The diagram shows an enlarged drawing of the end of a metre rule. It is being used to measure the length of a small feather.
1mmcm 2 3
1 0 2 0 3 0
What is the length of the feather?
A 19 mm B 29 mm C 19 cm D 29 cm
0625/11/M/J/11 4 Which statement about mass and weight is correct?
A Mass and weight are both forces.
B Neither mass nor weight is a force.
C Only mass is a force.
D Only weight is a force.
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2 The diagram shows an enlarged drawing of the end of a metre rule. It is being used to measure the length of a small feather.
1mmcm 2 3
1 0 2 0 3 0
What is the length of the feather?
A 19 mm B 29 mm C 19 cm D 29 cm
SAMPLE C
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SAMPLE C
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0625/11/M/J/10 8 Which statement about a moving object is correct?
A When an object is accelerating, the resultant force acting on it must equal zero.
B When an object is moving at a steady speed, the air resistance acting on it must equal zero.
C When an object is moving at a steady speed, the resultant force acting on it must equal zero.
D When an object is moving, there must be a resultant force acting on it.
9 An experiment is carried out to measure the extension of a rubber band for different loads.
The results are shown below.
load / N 0 1 2 3
length / cm 15.2 16.2 18.6
extension / cm 0 1.0 2.1 3.4
A 17.2 C 17.4 D 17.6
FORCES
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Which figure is missing from the table?
5 The diagram shows a balance being used to find the weight of a baby. The weight of the basket
At equilibrium, the pivot is nearer to the weight W than to the baby.
W
pivot
baby
centre of massof beam
basket
What is the weight of the baby?
A less than W
B more than W
C W
D impossible to tell
17.3B
SAMPLE C
OPY
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7 An experiment is carried out to measure the extension of a rubber band for different loads.
The results are shown below.
load / N 0 1 2 3
length / cm 15.2 16.2 18.6
extension / cm 0 1.0 2.1 3.4
Which figure is missing from the table?
A 17.2 B 17.3 C 17.4 D 17.6
8 Two blocks of metal X and Y hang from spring balances as shown in the diagram.
0 1 2 3 4 5
X
0 1 2 3 4 5
Y
N N
What does the diagram show about X and Y?
A They have the same mass and the same volume but different weights.
B They have the same mass and the same weight but different volumes.
C They have the same mass, the same volume and the same weight.
D They have the same weight and the same volume but different masses.
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SAMPLE C
OPY
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7 Objects with different masses are hung on a spring. The diagram shows how much the spring stretches.
100 g
M
10 cm
20 cm
30 cm
The extension of the spring is directly proportional to the mass hung on it.
What is the mass of object M?
A 110 g B 150 g C 200 g D 300 g
SAMPLE C
OPY
0625/13/M/J/12
7 Passengers are not allowed to stand on the upper deck of double-decker buses.
upper deck
lower deck
Why is this?
A They would cause the bus to become less stable.
B They would cause the bus to slow down.
C They would increase the kinetic energy of the bus.
D They would lower the centre of mass of the bus.
8 A geologist places a small rock on the left-hand pan of a balance. The two pans are level as shown when masses with a total weight of 23 N are placed on the right-hand pan. Take the weight of 1.0 kg to be 10 N.
0
rock masses
What is the mass of the small rock?
A 0.023 kg B 2.3 kg C 23 kg D 230 kg
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SAMPLE C
OPY
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9 A plane lamina with centre of mass X touches the ground at point P.
Which diagram shows the lamina in equilibrium?
P
A
P
B
P
C
P
D
45° 45°
70°20°
X X
XX
SAMPLE C
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6 Four objects are each acted on by only two forces, as shown.
Which object is in equilibrium?
A B
3.0 N
2.0 N
4.0 N
4.0 N
1.0 N
2.0 N
2.0 N
2.0 N
C D
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7 The extension-load graph for a spring is shown. The unstretched length of the spring is 17.0 cm.
3
2
1
02 4310
extension / cm
load / N
When an object is hung from the spring, the length of the spring is 19.2 cm.
What is the weight of the object?
A 1.4 N B 1.6 N C 2.6 N D 3.0 N
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SAMPLE C
OPY
6 The reading on a spring balance with a holder and eight identical discs is 3.0 N.
Six discs are removed and the reading becomes 1.2 N.
0
1
2
3
4
N springbalance
holderfor discs
eightdiscs
two discs
0
1
2
3
4
N
What is the weight of one disc?
A 0.2 N B 0.3 N C 0.5 N D 0.6 N
8A force acts on a moving rubber ball. 0625/11/O/N/10
Which of these changes could not happen to the ball because of the force?
A a change in direction
B a change in mass
C a change in shape
D a change in speed
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0625/11/O/N/10 5 Which list contains the name of a force?
A acceleration, charge, temperature
B density, resistance, speed
C distance, frequency, mass
D energy, power, weight
SAMPLE C
OPY
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8 Which statement about a moving object is correct?
A When an object is accelerating, the resultant force acting on it must equal zero.
B When an object is moving at a steady speed, the air resistance acting on it must equal zero.
C When an object is moving at a steady speed, the resultant force acting on it must equal zero.
D When an object is moving, there must be a resultant force acting on it.
9 An experiment is carried out to measure the extension of a rubber band for different loads.
The results are shown below.
load / N 0 1 2 3
length / cm 15.2 16.2 18.6
extension / cm 0 1.0 2.1 3.4
Which figure is missing from the table?
A 17.2 B 17.3 C 17.4 D 17.6
10 Energy is stored in a battery and in a box of matches.
Which type of energy is stored in each of them?
a battery a box of matches
A chemical chemical
B chemical internal (thermal)
C electrical chemical
D electrical internal (thermal)
11 A man lifts 20 bricks, each of weight 6 N.
What other information is needed to calculate the useful work done in lifting the bricks?
A the distance he lifts the bricks
B the mass of the bricks
C the time taken to lift the bricks
D the volume of the bricks
WORK, ENERGY & POWER
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SAMPLE C
OPY
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8 Which row gives an example of the stated form of energy?
form of energy example
A gravitational the energy due to the movement of a train along a level track
B internal the energy due to the flow of cathode rays in a cathode-ray tube
C kinetic the energy due to the position of a swimmer standing on a
high diving board
D strain the energy due to the compression of springs in a car seat
9 Which energy resource is used to generate electricity by first boiling water?
A hydroelectric
B nuclear fission
C tides
D waves
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10 Two farmers use an electrically powered elevator to lift bales of hay. All the bales of hay have the same mass.
bale of hay
As sunset approaches, they increase the speed of the motor so that more bales are lifted up in a given time.
How does this affect the work done in lifting each bale and the useful output power of the motor?
work done in lifting each bale
useful output power of the motor
A increases decreases
B increases increases
C no change decreases
D no change increases
SAMPLE C
OPY
0625/13/M/J/12 13 In which pair of energy sources are both sources renewable?
A oil and coal
B oil and tidal
C tidal and geothermal
D tidal and nuclear fission
0625/11/M/J/13 9 The diagram shows a hydroelectric system.
water
powerstation
pipereservoir
What are the main energy changes taking place?
A chemical energy → kinetic energy → electrical energy
B electrical energy → gravitational energy → kinetic energy
C gravitational energy → kinetic energy → electrical energy
D kinetic energy → electrical energy → gravitational energy
SAMPLE C
OPY
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11 An escalator (moving stairs) and a lift (elevator) are both used to carry passengers from the same underground railway platform up to street level.
escalator lift
The escalator takes 20 seconds to carry a man to street level. The useful work done is W. The useful power developed is P. The lift takes 30 seconds to carry the same man to street level.
How much useful work is done by the lift, and how much useful power is developed by the lift?
useful work done by lift
useful power developed by lift
A more than W less than P
B more than W P
C W less than P
D W P
8 Which energy transfer takes place when a matchstick burns?
A chemical to thermal
B chemical to nuclear
C nuclear to chemical
D thermal to chemical
0625/11/M/J/14 SAMPLE C
OPY
7 A student measures the length of a spring. She then hangs different weights from the spring. She measures the length of the spring for each different weight.
The table shows her results.
weight / N length / mm
0 520
1.0 524
2.0 528
3.0 533
4.0 537
5.0 540
What is the extension of the spring when the weight hung from it is 3.0 N?
A 4 mm B 5 mm C 12 mm D 13 mm
8 Which energy resource is used to generate electricity without using any moving parts?
A geothermal
B hydroelectric
C nuclear
D solar
9 A cyclist travels down a hill from rest at point X, without pedalling.
The cyclist applies his brakes and the cycle stops at point Y.
X
Yhill
Which energy changes have taken place between X and Y?
A gravitational potential → kinetic → thermal (heat)
B gravitational potential → thermal (heat) → kinetic
C kinetic → gravitational potential → thermal (heat)
D kinetic → thermal (heat) → gravitational potential
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SAMPLE C
OPY
SAMPLE C
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0625/11/M/J/10 3 Two distance / time graphs and two speed / time graphs are shown.
Which graph represents an object that is at rest?
A
distance
time
B
distance
time
C
speed
time
D
speed
time
00
00
00
00
4 A snail moves along a ruler. It takes 20 s to move from Q to R.
P
0
Q
2
R
12 cm
What is its average speed from Q to R?
A 20
12 cm / s
B 20
212 − cm / s
C 12
20 cm / s
D 212
20
−
cm / s
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MOTION
SAMPLE C
OPY
0625/13/M/J/12 4 A car is moving downhill along a road at a constant speed.
Which graph is the speed / time graph for the car?
A
speed
time00
B
speed
time00
C
speed
time00
D
speed
time00
3 A car travels at various speeds during a short journey. 0625/11/M/J/13
2 Which person is experiencing an acceleration?
A a driver of a car that is braking to stop at traffic lights
B a passenger in a train that is stationary in a railway station
C a shopper in a large store ascending an escalator (moving stairs) at a uniform rate
D a skydiver falling at constant speed towards the Earth
The table shows the distances travelled and the times taken during each of four stages P, Q, R and S.
stage P Q R S
1.8 3.6 2.7 2.7distance travelled / km
time taken / minutes 2 2 4 3
During which two stages is the car travelling at the same average speed?
A P and Q B P and S C Q and R D R and S
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SAMPLE C
OPY
0625/13/M/J/14
3 Which distance / time graph represents the motion of an object moving at constant speed?
A
00
distance
time
B
00
distance
time
C
00
distance
time
D
00
distance
time
2 A car moves with constant speed and then constant acceleration.
Which graph is the speed-time graph for the car?
speed
time0
0
speed
time0
0
speed
time
A B C
00
speed
time
D
00
3 A car travels 100 km. The journey takes two hours. The highest speed of the car is 80 km / h, and the lowest speed is 40 km / h.
What is the average speed for the journey?
A 40 km / h B 50 km / h C 60 km / h D 120 km / h
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SAMPLE C
OPY
0625/13/O/N/10
8 A car travels along the route PQRST in 30 minutes.
P
Q
R
S
T
10 km
5 km
5 km 10 km
What is the average speed of the car?
A 10 km / hour B 20 km / hour C 30 km / hour D 60 km / hour
9 The diagram shows the speed / time graph for an object moving at constant speed.
2
00 3 4
time / s
speedm / s
1
1 2
What is the distance travelled by the object in the first 3 s?
A 1.5 m B 2.0 m C 3.0 m D 6.0 m
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3 A child is standing on the platform of a station.
A train travelling at 30 m / s takes 3.0 s to pass the child.
What is the length of the train?
A 10 m B 27 m C 30 m D 90 m
SAMPLE C
OPY
0625/11/O/N/14 2 The graph shows how the speed of a car changes with time.
speed
U V W X Y time
0
Between which two times is the car stationary?
A U and V B V and W C W and X D X and Y
0625/13/O/N/14 2 The graph shows how the speed of a car changes with time.
speed
U V W X Y time
0
Between which two times is the car stationary?
A U and V B V and W C W and X D X and Y
2 Two stones of different weight fall at the same time from a table. Air resistance may be ignored.
What will happen and why?
what will happen why
A
B
C
D
both stones hit the floor at the same time
both stones hit the floor at the same time
the heavier stone hits the floor first
the heavier stone hits the floor first
acceleration of free fall is constant
they fall at constant speed
acceleration increases with weight
speed increases with weight
0625/11/O/N/12 SAMPLE C
OPY
12 To prevent a cement mixer sinking into soft ground, the mixer is placed on a large flat board.
board soft ground
cement mixer
Why does this prevent the mixer sinking?
A The large area decreases the pressure on the ground.
B The large area increases the pressure on the ground.
C The large area decreases the weight on the ground.
D The large area increases the weight on the ground.
13 The pressure of a gas is measured using a manometer as shown in the diagram.
hmercury
pressure tobe measured
The mercury in the manometer is replaced with a liquid which is less dense.
How does the value of h change?
A It becomes zero.
B It decreases, but not to zero.
C It stays the same.
D It increases.
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PRESSURE
SAMPLE C
OPY
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11 To prevent a cement mixer sinking into soft ground, the mixer is placed on a large flat board.
board soft ground
cement mixer
Why does this prevent the mixer sinking?
A The large area decreases the pressure on the ground.
B The large area increases the pressure on the ground.
C The large area decreases the weight on the ground.
D The large area increases the weight on the ground.
12 The pressure of a gas is measured using a manometer as shown in the diagram.
hmercury
pressure tobe measured
The mercury in the manometer is replaced with a liquid which is less dense.
How does the value of h change?
A It becomes zero.
B It decreases, but not to zero.
C It stays the same.
D It increases.
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SAMPLE C
OPY
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11 A brick with flat, rectangular sides rests on a table.
brick table
The brick is now turned so that it rests on the table on its smallest face.
How has this affected the force and the pressure exerted by the brick on the table?
force pressure
A increased increased
B increased unchanged
C unchanged increased
D unchanged unchanged
SAMPLE C
OPY
0625/11/M/J/11
12 The diagram shows two mercury barometers.
Barometer 1 is measuring atmospheric pressure on day 1.
Barometer 2 is measuring atmospheric pressure on day 2.
barometer 1, day 1
point X
barometer 2, day 2
point Y
mercury
Which statement is true?
A The atmospheric pressure on day 1 is less than the atmospheric pressure on day 2.
B The atmospheric pressure on day 1 is the same as the atmospheric pressure on day 2.
C The pressure at point X is less than the pressure at point Y.
D The pressure at point X is the same as the pressure at point Y.
13 A sealed gas cylinder is left outside on a hot, sunny day.
What happens to the average speed of the molecules and to the pressure of the gas in the cylinder as the temperature rises?
average speed of the gas molecules
gas pressure
A falls falls
B falls rises
C rises falls
D rises rises
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SAMPLE C
OPY
0625/12/M/J/11
13 A sealed gas cylinder is left outside on a hot, sunny day.
What happens to the average speed of the molecules and to the pressure of the gas in the cylinder as the temperature rises?
average speed of the gas molecules
gas pressure
A falls falls
B falls rises
C rises falls
D rises rises
14 The diagram shows two mercury barometers.
Barometer 1 is measuring atmospheric pressure on day 1.
Barometer 2 is measuring atmospheric pressure on day 2.
barometer 1, day 1
point X
barometer 2, day 2
point Y
mercury
Which statement is true?
A The atmospheric pressure on day 1 is less than the atmospheric pressure on day 2.
B The atmospheric pressure on day 1 is the same as the atmospheric pressure on day 2.
C The pressure at point X is less than the pressure at point Y.
D The pressure at point X is the same as the pressure at point Y.
0625/12/M/J/11
SAMPLE C
OPY
0625/11/O/N/11
11 A water manometer is used to measure the pressure of a gas supply.
initial levelof water 10 cm
10 cm
gassupply
water
When it is attached to the gas supply, the water falls on the left side and rises on the right side. The difference in the levels of water on the two sides is now 20 cm.
What is the pressure of the gas supply?
A the pressure due to 10 cm depth of water
B the pressure due to 20 cm depth of water
C the pressure due to 10 cm depth of water plus atmospheric pressure
D the pressure due to 20 cm depth of water plus atmospheric pressure
0625/13/O/N/11
10 A chair is placed on protective cups to prevent damage to the carpet underneath it.
chair
carpet
protective cups
How do the cups change the area of contact with the carpet and the pressure on it?
area of contact pressure
A decreased decreased
B decreased increased
C increased decreased
D increased increased
SAMPLE C
OPY
0625/11/O/N/11
12 A chair is placed on protective cups to prevent damage to the carpet underneath it.
chair
carpet
protective cups
How do the cups change the area of contact with the carpet and the pressure on it?
area of contact pressure
A decreased decreased
B decreased increased
C increased decreased
D increased increased
0625/13/O/N/11
13 A water manometer is used to measure the pressure of a gas supply.
initial levelof water 10 cm
10 cm
gassupply
water
When it is attached to the gas supply, the water falls on the left side and rises on the right side. The difference in the levels of water on the two sides is now 20 cm.
What is the pressure of the gas supply?
A the pressure due to 10 cm depth of water
B the pressure due to 20 cm depth of water
C the pressure due to 10 cm depth of water plus atmospheric pressure
D the pressure due to 20 cm depth of water plus atmospheric pressure
0625/13/O/N/11
SAMPLE C
OPY
0625/13/O/N/12
12 The diagram shows a mercury barometer.
25 cm
5 cm
75 cm
mercury
Which distance is used to calculate the pressure of the atmosphere?
A 25 cm B 75 cm C 80 cm D 100 cm
13 A dam across a lake is divided into two sections by a rock. Section X is longer than section Y but the two sections are otherwise identical. The water in the lake by the dam is the same depth everywhere. The diagram shows a view from above of the lake and the dam.
rock
water inlake
section Y of dam
section X of dam
The water creates a force on each section of the dam and a pressure on each section of the dam.
Which statement is correct?
A The force on X equals the force on Y.
B The force on X is less than the force on Y.
C The pressure on X equals the pressure on Y.
D The pressure on X is less than the pressure on Y.
0625/13/O/N/12
SAMPLE C
OPY
0625/11/O/N/13
11 A drawing pin (thumb tack) has a sharp point and a flat end.
flat endsharp point
The pin is pushed into a wooden board.
How do the pressure and the force at the sharp point compare with the pressure and the force at the flat end?
force at the sharp point pressure at the sharp point
A greater than at the flat end greater than at the flat end
B greater than at the flat end less than at the flat end
C the same as at the flat end greater than at the flat end
D the same as at the flat end less than at the flat end
12 A water manometer is connected to a gas supply.
water
gassupply
P
Q
There is a gas leak and the pressure of the gas supply falls.
What happens to the water level at P and what happens to the water level at Q?
water level at P water level at Q
A falls falls
B falls rises
C rises falls
D rises rises
0625/11/O/N/14 SAMPLE C
OPY
0625/11/O/N/13
12 The diagrams show four divers at the bottom of four different swimming pools.
Two swimming pools contain fresh water and two contain salt water. Fresh water is less dense than salt water.
Which diver feels the least pressure from the water?
A B
freshwater
freshwater
C D
saltwater
saltwater
13 The diagram shows a sealed jar containing a gas.
gas
Which statement about the gas in the jar is correct?
A The gas molecules collide with the inside of the jar more often as the temperature increases.
B The gas molecules move more slowly as the temperature increases.
C The pressure of the gas decreases as the temperature increases.
D The pressure of the gas is higher at the top of the jar than at the bottom of the jar.
0625/11/O/N/13
11 It is dangerous for submarines to dive to very great depths.
Why is it dangerous?
A The density of water is less at greater depths.
B The pressure of water is greater at greater depths.
C The temperature of water is higher at greater depths.
D The weight of the submarine is greater at greater depths.
0625/13/O/N/13 SAMPLE C
OPY
14 The diagram represents the molecules of a gas in a closed container of constant volume.
What happens to the molecules when the gas is heated?
A They expand.
B They hit the walls less often.
C They move further apart.
D They move more quickly.
15 A liquid is left in an open dish. After several days there is less liquid in the dish.
Which statement explains this?
A The least energetic molecules leave the surface and escape into the air.
B The least energetic molecules leave the surface and return.
C The most energetic molecules leave the surface and escape into the air.
D The most energetic molecules leave the surface and return.
16 A thermometer has a scale which starts at –10 °C and ends at 110 °C.
–10 0 100 110
°C
What is the value of the lower fixed point and of the upper fixed point of the scale?
lower fixed point
/ °C
upper fixed point
/ °C
A –10 100
B –10 110
C 0 100
D 0 110
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THERMAL PHYSICS
SAMPLE C
OPY
17 A student carries out an experiment to find the melting point of wax. The graph shows how the temperature of the wax changes as it cools.
00
temperature/ °C
melting pointof wax
time
X
Y
Z
Which statement is correct?
A At X the temperature drops more slowly than at Z.
B At Y all the wax is solid.
C At Y thermal energy is being given out by the wax.
D At Z the wax molecules are not moving.
18 Hot liquid in a vacuum flask cools extremely slowly. This is because some methods of heat transfer cannot take place in a vacuum.
Which methods cannot take place in a vacuum?
A conduction and convection only
B conduction and radiation only
C convection and radiation only
D conduction, convection and radiation
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19 A teacher demonstrates convection currents using a box with two chimneys and a lighted candle. She holds a smoking taper at point P.
In which direction does the convection current cause the smoke to move?
chimney chimney
B
C
D
A PSAMPLE C
OPY
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14 Very small pollen grains are suspended in water. A bright light shines from the side.
Looking through a microscope, small specks of light are seen to be moving in a random, jerky manner.
light
pollen grainsin water
microscope
eye
What are the moving specks of light?
A pollen grains being hit by other pollen grains
B pollen grains being hit by water molecules
C water molecules being hit by other water molecules
D water molecules being hit by pollen grains
15 A swimmer feels cold after leaving warm water on a warm, windy day.
Why does she feel cold even though the air is warm?
A The less energetic water molecules on her skin escape quickly.
B The more energetic water molecules on her skin do not escape quickly.
C The water on her skin does not evaporate quickly enough to keep her warm.
D The water on her skin evaporates quickly and cools her skin.
16 Which physical property is used to measure temperature in a liquid-in-glass thermometer?
A the length of the thermometer
B the thickness of the glass bulb
C the volume of the glass bulb
D the volume of the liquid
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SAMPLE C
OPY
17 The graph shows the temperature of a substance as it is heated steadily.
In which part of the graph is the substance boiling?
temperature
time
A
B
C
D
18 A night storage heater contains a large block of material that is heated electrically during the night. During the day the block cools down, releasing thermal energy into the room.
Which thermal capacity and which night-time temperature increase will cause the most energy to be stored by the block?
thermal capacity of block
night-time temperature increase
A large large
B large small
C small large
D small small
19 After a sheep has its wool cut off, it is harder for it to stay warm when the air temperature falls.
How does the wool help the sheep to stay warm?
A Air can circulate between the wool fibres and heat up the skin by convection.
B Air trapped by the wool fibres reduces heat losses from the skin by convection.
C The wool fibres are curly so it takes longer for heat to be conducted away from the skin.
D The wool fibres conduct heat to the skin from the air outside.
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SAMPLE C
OPY
14 A car tyre contains a constant volume of air.
During use, the air gets hotter and the air pressure increases.
What explains this increase in pressure in terms of the motion of air molecules?
number of air molecules in tyre
force between air molecules and tyre wall
number of collisions per second between air molecules and tyre wall
A increased increased decreased
B increased unchanged decreased
C unchanged increased increased
D unchanged unchanged increased
15 The table lists the melting points and the boiling points of four different substances.
Which substance is a liquid at 0 °C?
melting point / °C boiling point / °C
A –219 –183
B –7 58
C 98 890
D 1083 2582
16 A student wishes to calibrate a mercury-in-glass thermometer with a °C scale.
Which values should she use for the lower fixed point and for the upper fixed point?
lower fixed point upper fixed point
A freezing point of mercury boiling point of mercury
B freezing point of mercury boiling point of water
C freezing point of water boiling point of mercury
D freezing point of water boiling point of water
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SAMPLE C
OPY
SAMPLE C
OPY
0625/11/M/J/09
25 The north pole of a bar magnet is placed next to end P of an iron bar PQ, as shown. As a result, magnetic poles are induced in the iron bar.
N S
magnet
Q P
iron bar
What are the magnetic poles induced at P and at Q?
magnetic pole at P magnetic pole at Q
A north north
B north south
C south north
D south south
26 An electromagnet is used to separate magnetic metals from non-magnetic metals.
Why is steel unsuitable as the core of the electromagnet?
A It forms a permanent magnet.
B It has a high density.
C It has a high thermal capacity.
D It is a good conductor of electricity.
27 Which particle does not experience a force due to an electric field?
A α-particle
B electron
C neutron
D proton
ELECTRICITY & MAGNETISM
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SAMPLE C
OPY
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28 Using the circuit shown, the current I is found for various voltages V. The temperature of the resistor does not change.
A
I
variable direct
voltage
V
Which graph shows the results obtained?
I
V
A
I
V
B
I
V
C
I
V
D
00
00
00
00
29 In the circuit shown, ammeter X reads 0.5 A.
4.0 V
A A X Y
3.0 Ω 5.0 Ω
What does ammeter Y read?
A 0 B 0.5 A C 3.5 A D 4.0 A
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31 In the circuit below, one of the lamps breaks, causing all the other lamps to go out.
Which lamp breaks?
A C D
B
SAMPLE C
OPY
30 In the circuits shown, all the resistors are identical.
Which circuit has the least resistance?
A B
C D
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32 Either a fuse or a circuit-breaker can be used to protect electrical cables from large currents that could cause overheating.
YYY electrical
supply
X
appliance
cable
cable
live
neutral
If a fuse is used, in which position in the circuit should it be connected, and if a circuit-breaker is used, in which position should it be connected?
position of fuse
position of circuit-breaker
A X X
B X Y
C Y X
D Y Y
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SAMPLE C
OPY
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33 The current in a lamp at full brightness is 0.25 A. The flexible cable to the lamp is designed for currents up to 5.0 A, so it can safely carry the 0.25 A taken by the lamp.
Which fuse should be inserted in the plug at the other end of the flexible cable?
A 0.2 A B 1.0 A C 5.0 A D 10.0 A
34 A wire perpendicular to the page carries an electric current in a direction out of the page. There are four compasses near the wire.
Which compass shows the direction of the magnetic field caused by the current?
wire withcurrent out
of page
A C
B
D
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36 In a cathode-ray tube, a hot tungsten cathode releases particles by thermionic emission.
What are these particles?
A α-particles
B electrons
C protons
D tungsten atoms SAMPLE
COPY
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30 The circuit shown is a potential divider.
output
X
What is component X?
A a light-dependent resistor
B a relay
C a thermistor
D a variable resistor
31 A lamp is connected in four circuits in turn, each using identical batteries.
The resistors are all identical.
In which circuit will the lamp be brightest?
A B
C D
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SAMPLE C
OPY
17
© UCLES 2014 0625/13/O/N/14 [Turn over
36 The diagram shows the structure of a transformer.
primary coil
core
Which row shows a suitable material for the primary coil and a suitable material for the core?
primary coil core
A copper copper
B copper iron
C iron copper
D iron iron
37 In a cathode-ray tube, a hot tungsten cathode releases particles by thermionic emission.
What are these particles?
A α-particles
B electrons
C protons
D tungsten atoms
SAMPLE C
OPY
© UCLES 2015 0625/11/O/N/15
25 Which row states whether each metal is ferrous or non-ferrous?
ferrous non-ferrous
A aluminium copper
B copper iron
C iron steel
D steel aluminium
26 Which procedure may be used to demagnetise a steel bar?
A cooling it in a freezer for several hours
B earthing it with a copper wire for several seconds
C removing it slowly from a coil carrying an alternating current (a.c.)
D rubbing it in one direction with a woollen cloth
27 What is the unit of electrical power?
A ampere
B joule
C volt
D watt
SAMPLE C
OPY
11
© UCLES 2015 0625/11/O/N/15 [Turn over
28 Some resistors are made using one type of wire. Two different lengths of wire are available. Each length is available in two different diameters.
Which wire has the highest resistance?
A the wire with the greater length and the larger diameter
B the wire with the greater length and the smaller diameter
C the wire with the smaller length and the larger diameter
D the wire with the smaller length and the smaller diameter
29 Four students are each given an identical resistor and asked to find its resistance. They each measure the potential difference across the resistor and the current in it.
One student makes a mistake.
Which row shows the results of the student that makes a mistake?
potential difference / V current / A
A 1.2 0.500
B 2.4 1.100
C 1.5 0.625
D 3.0 1.250
30 What is the circuit symbol for a variable resistor?
A B C D
SAMPLE C
OPY
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20 Which waves are longitudinal?
88:88
B A C D
light wavesfrom a lamp
sound wavesfrom a trumpet
microwavesin an oven
water waveson a pond
21 A navigation buoy floating on the sea oscillates up and down as a wave passes.
navigationbuoy
In exactly two minutes, six complete wavelengths pass the buoy.
What is the frequency of the waves?
A 0.050 Hz B 0.33 Hz C 3.0 Hz D 20 Hz
PROPERTIES OF WAVES-INCLUDING LIGHT AND SOUND
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SAMPLE C
OPY
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22 The diagram shows a ray of light incident on the edge of a piece of glass. The angle i is bigger
than the critical angle.
Which arrow correctly shows the direction of the ray after it leaves the edge of the glass?
D
B
C
A
air
glass
ray oflight
normal
i
23 Which diagram correctly shows rays of light passing through a converging lens in a camera?
object
lens
image
camera A B
object
lens
image
cameraC
object
lens
image
camera D
object
lens
image
camera
24 What is the approximate value of the highest frequency that can be heard by a young person?
A 20 Hz B 200 Hz C 2000 Hz D 20 000 Hz
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SAMPLE C
OPY
20 Which waves are longitudinal?
88:88
B A C D
light wavesfrom a lamp
sound wavesfrom a trumpet
microwavesin an oven
water waveson a pond
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25 A police car siren emits two different sounds P and Q. These are produced alternately. The
diagram represents the sounds emitted.
Q Q
P P P
time
displacement
Which sound is the louder and which has the lower pitch?
louder lower pitch
A P P
B P Q
C Q P
D Q Q
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SAMPLE C
OPY
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21 A police car siren emits two different sounds P and Q. These are produced alternately. The diagram represents the sounds emitted.
Q Q
P P P
time
displacement
Which sound is the louder and which has the lower pitch?
louder lower pitch
A P P
B P Q
C Q P
D Q Q
22 What is the approximate value of the highest frequency that can be heard by a young person?
A 20 Hz B 200 Hz C 2000 Hz D 20 000 Hz
23 A navigation buoy floating on the sea oscillates up and down as a wave passes.
navigationbuoy
In exactly two minutes, six complete wavelengths pass the buoy.
What is the frequency of the waves?
A 0.050 Hz B 0.33 Hz C 3.0 Hz D 20 Hz
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SAMPLE C
OPY
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24 Which diagram correctly shows rays of light passing through a converging lens in a camera?
object
lens
image
camera A B
object
lens
image
cameraC
object
lens
image
camera D
object
lens
image
camera
25 The diagram shows a ray of light incident on the edge of a piece of glass. The angle i is bigger than the critical angle.
Which arrow correctly shows the direction of the ray after it leaves the edge of the glass?
D
B
C
A
air
glass
ray oflight
normal
i
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SAMPLE C
OPY
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19 Water waves can be used to show reflection, refraction and diffraction.
For each of these, which row shows whether or not the speed of the water waves changes?
reflection refraction diffraction
A no no yes
B no yes no
C yes no no
D yes yes yes
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3 Water waves can be used to show reflection, refraction and diffraction.
For each of these, which row shows whether or not the speed of the water waves changes?
reflection refraction diffraction
A no no yes
B no yes no
C yes no no
D yes yes yes
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SAMPLE C
OPY
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20 A vertical stick is dipped up and down in water at P.
In two seconds, three wave crests are produced on the surface of the water.
P
X
Y
wave crests
Which statement is correct?
A Distance X is the amplitude of the waves.
B Distance Y is the wavelength of the waves.
C Each circle represents a wavefront.
D The frequency of the waves is 3 Hz.
21 The diagram shows the dispersion of white light by a glass prism.
red light
violet lightglass prism
white light
Why does dispersion occur when white light enters the glass?
A The frequency of red light decreases more than that of violet light.
B The frequency of violet light decreases more than that of red light.
C The speed of red light decreases more than that of violet light.
D The speed of violet light decreases more than that of red light.
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SAMPLE C
OPY
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22 A thin converging lens is used to produce, on a screen, a focused image of a candle.
candle
lens
screenimage
Various focused images are produced on the screen by moving the lens and the screen backwards and forwards.
Which statement is always correct?
A The image is at the principal focus (focal point) of the lens.
B The image is bigger than the object.
C The image is closer to the lens than the object is.
D The image is inverted.
23 Sound travels by wave motion.
Which property of waves causes echoes?
A diffraction
B dispersion
C reflection
D refraction
24 A student listens to a machine that makes sounds of different frequencies. He can only hear one of the sounds.
Which frequency of sound is the student able to hear?
A 2 Hz B 10 Hz C 2 kHz D 30 kHz
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SAMPLE C
OPY
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1 A tennis player hits a ball hard and 0.40 s later hears the echo from a wall.
The speed of sound in air is 330 m / s.
How far away is the player from the wall?
A 66 m B 132 m C 264 m D 825 m
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25 A student claps once when standing 100 m away from a large wall.
The speed of sound in air is 330 m / s.
How long after clapping does the student hear an echo?
A 0.30 s B 0.61 s C 1.7 s D 3.3 s
SAMPLE C
OPY
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19 A thin converging lens is used to produce, on a screen, a focused image of a candle.
candle
lens
screenimage
Various focused images are produced on the screen by moving the lens and the screen backwards and forwards.
Which statement is always correct?
A The image is at the principal focus (focal point) of the lens.
B The image is bigger than the object.
C The image is closer to the lens than the object is.
D The image is inverted.
21 Sound travels by wave motion.
Which property of waves causes echoes?
A diffraction
B dispersion
C reflection
D refraction
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SAMPLE C
OPY
0625/11/M/J/11
40 An atom of the element lithium has a nucleon number of 7 and a proton number of 3.
Which diagram represents a neutral atom of lithium?
nn
++
+
–
–
A
n+ +
+
–
–
–
B
nn
n n++
+nn
n n++
+
–
–
–
C
n
+
–
–
–
–
– –
– –
D
= a neutron
= a proton
= an electron
key
(not to scale)
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38 Which row shows the relative ionising effects and penetrating abilities of α-particles and
β-particles?
ionising effect penetrating ability
A
B
C
D
α greater than β
α greater than β
α less than β
α less than β
α greater than β
α less than β
α greater than β
α less than β
ATOMIC PHYSICS
SAMPLE C
OPY
39 The graph shows how the count rate on a detector due to a radioactive source changes with time.
4800
2400
00 1 2 3 4 5
count ratecounts per minute
time / hours
What is the count rate at 5.0 hours?
A 960 counts per minute
B 600 counts per minute
C 150 counts per minute
D 0 counts per minute
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+ + + + +
+ +
–
– –
40 The diagram represents a carbon atom.
– –– – key
neutron proton electron
What is the nucleon number (mass number) for this atom?
A 6 B 8 C 14 D 20
SAMPLE C
OPY
0625/13/M/J/13 39 The diagram represents a carbon atom.
+ + + ++
+ +
–
– –
– –
– – key neutron proton electron
What is the nucleon number (mass number) for this atom?
A 6 B 8 C 14 D 20
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40 The graph shows how the count rate on a detector due to a radioactive source changes with time.
4800
2400
00 1 2 3 54
count ratecounts per minute
time / hours
What is the count rate at 5.0 hours?
A 960 counts per minute
B 600 counts per minute
C 150 counts per minute
D 0 counts per minute
SAMPLE C
OPY
0625/11/M/J/14
38 The table shows the results of an experiment to find the half-life of a radioactive substance.
time / s second/counts
substance from rate count
0 150
60 120
120 95
180 75
240 60
What is the half-life of the substance?
A 60 seconds
B 120 seconds
C 180 seconds
D 240 seconds
39 The diagram shows a box used for storing radioactive sources.
Which material is best for lining the box to prevent the escape of most radioactive emissions?
A aluminium
B copper
C lead
D steel
40 A lithium nucleus contains 3 protons and 4 neutrons.
What is its nuclide notation?
A Li3
4B Li
4
3C Li
7
3D Li
7
4
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SAMPLE C
OPY
SAMPLE C
OPY