ips review (ch8-ch14) 2 nd semester (physics). if you jog for 1 hour and travel 10km, 10km/h...
TRANSCRIPT
IPS Review (Ch8-Ch14)
2nd Semester (Physics)
If you jog for 1 hour and travel 10km, 10km/h describes your____A. momentum
B. average speed
C. displacement
D. acceleration
CHAPTER 8
___________ is speed in a certain direction.
A. acceleration
B. Friction
C. Momentum
D. Velocity
CHAPTER 8
Which of the following objects is not accelerating?
A. A ball being juggled
B. A woman walking at 2.5 m/s along a straight road
C. a satellite circling Earth
D. A braking cyclist
CHAPTER 8
The Newton is a measure of _____.
A. Mass
B. Length
C. Force
D. Acceleration
CHAPTER 8
_____ is a force that opposes the motion between two objects in
contact with each other.
A. Motion
B. Friction
C. Acceleration
D. Velocity
CHAPTER 8
Automobile seat belts are necessary for safety because of a
passenger’s____.A. Inertia
B. Weight
C. Speed
D. gravity
CHAPTER 8
The winner of the shot-put event in the Olympics is the person who best uses:
A. Newton’s first law
B. Newton’s second law
C. Air resistance
D. The law of gravity
CHAPTER 8
An example involving action-reaction forces is _____.
A. Air escaping from a toy balloon
B. A rocket traveling through the air
C. A ball bouncing off a wall
D. All of the above
CHAPTER 8
_____ is defined as force acting over a distance.
A. power
B. Energy
C. Work
D. Potential energy
CHAPTER 9
The quantity that measures how much a machine multiplies force is called:A. Mechanical advantage
B. Leverage
C. Efficiency
D. Power
CHAPTER 9
Scissors are an example of ____.
A. A lever
B. A wedge
C. A wheel and axle
D. A compound machine
CHAPTER 9
The unit that measures 1 J of work done each second is the ____.
A. Power
B. Newton
C. Watt
D. Mechanical advantage
CHAPTER 9
Joules could be used to measure:
A. The work done in lifting a bowling ball
B. The potential energy of a bowling ball held in the air
C. The kinetic energy of a rolling bowling ball
D. All of the above
CHAPTER 9
Which of the following situations does not involve potential energy being changed into
kinetic energy?A. An apple falling from a tree
B. Shooting a dart from a spring-loaded gun
C. Pulling back on the string of a bow
D. A creek flowing downstream
CHAPTER 9
______ is determined by both mass and velocity.
A. work
B. Power
C. Potential energy
D. Momentum
E. Kinetic energy
CHAPTER 9
Energy that does not involve the large-scale motion or position of objects in a
system is called ____.
A. Potential energy
B. Mechanical energy
C. Non-mechanical energy
D. Conserved energy
CHAPTER 9
The law of conservation of energy states that _____.
A. The energy of a system is always decreasing
B. No machine is 100 percent efficient
C. Energy is neither lost nor created
D. Earth has limited energy resources
CHAPTER 9
Waves that need a medium in which to travel are called _____.
A. Longitudinal waves
B. Transverse waves
C. Mechanical waves
D. All of the above
CHAPTER 11
Most waves are caused by ____.
A. Velocity
B. Amplitude
C. A vibration
D. Earthquakes
CHAPTER 11
For which type of waves do particles in the medium vibrate
perpendicularly to the direction in which the waves are traveling?
A. Transverse waves
B. Longitudinal waves
C. P waves
D. None of the above
CHAPTER 11
A sound wave is an example of _____.
A. An electromagnetic wave
B. A transverse wave
C. A longitudinal wave
D. A surface wave
CHAPTER 11
In an ocean wave, the molecules of water _____.
A. Move perpendicularly to the direction of wave travel
B. Move parallel to the direction of wave travel
C. Move in circles
D. Don’t move at all
CHAPTER 11
Half the vertical distance between the crest and trough of a wave is
called the _______.A. frequency
B. crest
C. wavelength
D. amplitude
CHAPTER 11
The number of waves passing a given point each second is called
the_________A. frequency
B. Wave speed
C. wavelength
D. amplitude
CHAPTER 11
The Doppler effect of a passing siren results from an apparent
change in_____A. loudness
B. Wave speed
C. frequency
D. interference
CHAPTER 11
The combining of waves as they meet is known as____
A. A crest
B. noise
C. interference
D. The Doppler effect
CHAPTER 11
Wave bends when they pass through an opening. This is
called________A. interference
B. diffraction
C. refraction
D. The Doppler effect
CHAPTER 11
All sound waves are___
A. Longitudinal waves
B. Transverse waves
C. Electromagnetic waves
D. Standing waves
CHAPTER 12
The speed of sound depends on______
A. The temp. of the medium
B. The density of the medium
C. How well the particles of the medium transfer energy
D. All of the above
CHAPTER 12
A sonar device can use the echoes of ultra-sound under water to find
the________
A. Speed of sound
B. Depth of the water
C. Temperature of the water
D. Height of the waves on a surface
CHAPTER 12
During a thunderstorm, you see lightning before you hear thunder
because_____
A. The thunder occurs after the lightning
B. The thunder is farther away than the lightning
C. Sound travels faster than light
D. Light travels faster than sound
CHAPTER 12
The speed of light_____
A. Depends on the medium
B. Is faster in a vacuum
C. Is the fastest speed in the universe
D. All of the above
CHAPTER 12
Which of the following forms of light has the most energy?
A. X rays
B. microwaves
C. Infrared light
D. Ultraviolet light
CHAPTER 12
Light can be modeled as_____
A. Electromagnetic waves
B. A stream of particles called photons
C. Rays that travel in straight lines
D. All of the above
CHAPTER 12
The energy of light is proportional to____
A. amplitude
B. wavelength
C. frequency
D. The speed of light
CHAPTER 12
A flat mirror forms an image that is___
A. Smaller than the object
B. Larger than the object
C. virtual
D. real
CHAPTER 12
Which of the following wavelengths of visible light bends the most when
passing through a prism?
A. red
B. yellow
C. Green
D. blue
CHAPTER 12
Which of the following particles is electrically neutral?
A. A proton
B. An electron
C. A hydrogen atom
D. A hydrogen ion
CHAPTER 13
Which of the following is not an example of charging by friction?
A. Sliding over a plastic-covered car seat
B. Scraping food from a metal bowl with a metal spoon
C. Walking across a woolen carpet
D. Brushing dry hair with a plastic comb
CHAPTER 13
The electric force force between two objects depends on all of the
following except______.
A. The distance between the objects
B. The electric charge of the first object
C. How the two objects became electrically charged
D. The electric charge of the second object
CHAPTER 13
A positive charge placed in the electric field of a second positive
charge will ______
A. Experience a repulsive force
B. Accelerate away from the second positive charge
C. Have greater electrical potential energy when near the second charge than when farther away
D. All of the above
CHAPTER 13
An electric current does not exist in ______.
A. A closed circuit
B. A series circuit
C. A parallel circuit
D. An open circuit
CHAPTER 13
Which of the following schematic diagrams represent circuits that cannot have current in them as
drawn.
A. AB. BC. CD. DE. B & DF. A & BG. C & D CHAPTER 13
Which of the following can help prevent a circuit from overloading?
A. A fuse
B. A switch
C. A circuit breaker
D. Both A & C
CHAPTER 13
A 1.5 V battery is connected to a small light bulb with a resistance of
3.5 Ω. What is the current in the bulb?
A. 0.5 A
B. 1.3 A
C. 2.3 A
D. 0.43 A
CHAPTER 13
The current in a resistor is 0.50 A when connected across a voltage of 120 V. What is the resistance?
A. .004 Ω
B. 240 Ω
C. 500 Ω
D. .056 Ω
CHAPTER 13
If the poles of two magnets repel each other, _____
A. Both poles must be south poles
B. Both poles must be north poles
C. One pole is a south pole and the other is a north pole
D. The poles are the same type
CHAPTER 14
The part of the magnet where the magnetic field and forces are
strongest is called a magnetic ____
A. field
B. pole
C. attraction
D. repulsion
CHAPTER 14
An object’s ability to generate a magnetic field depends on its ____
A. size
B. location
C. composition
D. direction
CHAPTER 14
A straight current-carrying wire produces ______
A. An electric field
B. A magnetic field
C. Beams of white light
D. All of the above
CHAPTER 14
An electric motor uses an electromagnet to change _____
A. Mechanical energy to electrical energy
B. Magnetic fields in the motor
C. Magnetic poles in the motor
D. Electrical energy to mechanical energy
CHAPTER 14
An electric generator is a device that converts _____.
A. Nuclear energy to electrical energy
B. Wind energy to electrical energy
C. Energy from burning coal to electrical energy
D. All of the above
CHAPTER 14
Rubbing (in one direction) an otherwise non-magnetic metal with
a magnet results in _____
A. The material falling apart
B. The domains to be randomly oriented
C. All of the domains to align
D. Most of the domains to align
CHAPTER 14
When 10,000 V of current across power lines is changed to 120 V which comes out of wall sockets,
the current must pass through a __
A. resistor
B. Step-up transformer
C. Step-down transformer
D. Circuit breaker
CHAPTER 14