exercise chapter 1 form 4

PHYSICS FORM 4 ‘CEPAT TANGKAS’ 5 MINUTES PROGRAMME

Chapter 1 : INTRODUCTION TO PHYSICS Date : ………………………………..

Understanding Physics

Instruction : Choose the best option for each question.

1. Which of the following field is related closely to physics ? A Engineering and actuary B Information technology and robotics C Aeronautical engineering and anthropology D Marine engineering and biotechnology

2. Which of the following quantities can be derived ? A Temperature B Mass C Current D Energy

3. Which of the following in not base quantity ? A Electric current B Density C Mass

4. Which of the following measurements is the shortest ? A Megametre B Kilometre C Micrometre D Centimetre E Gigametre

5. 4 328 000 000 mm can be represented by A 4.328 Gm B 4.328 cm C 4.328 Mm D 4.328 um

Total Marks

Prepared by : Pn. Norazah Bte Hj. Beduroding (Panel Head of Physics)

5

PHYSICS FORM 4 MASTERY PRACTICE


Base Quantities and Derived Quantities

1.Write the value of the following quantities in standard form.

Quantity Standard Forma) Mass = 68 700 kg 6.87 kg x 104 X 6.87 x 104 kgb) Time = 0.00000326 sc) Length = 562 000 000 md) Temperature = 373 Ke) Current = 0.00014 A f) Area = 4 568 000 m2

g) Volume = 91 600 m3

h) Force = 0.08 Ni) Velocity = 255 ms-1

j) Pressure = 762 000 Nm-2

2. State all the readings in table below in SI units and standard form. The first one is done for you.

Reading Standard Forma) 25 Mm = 25 x 106 = (2.5 x 101 ) x 106 = 2.5 x 107 mb) 627 kVc) 2450 nsd) 0.0098 mAe) 0.000000574 Ggf) 879 600 cm

3. Convert the following values into the unit in bracket.

a) 90 km h-1 to ( m s-1 )

c) 2.5 g cm-3 ( kg m-3 )

b) 16 m s-1 to ( km h-1 ) d) 4700 kg m-3 to (g cm-3)




Measuring Instruments

1. Fill in the blank with suitable word or value.

2. Figure below shows a micrometer screw gauge before nothing is placed between its stirrup and anvil, and after a piece of glass slide is placed between the stirrup and anvil.




Measuring Instrument

1. Figure 1.1 shows the reading on a micrometer screw gauge when there is nothing placed between the stirrup and the anvil.

(a) (i) State the function of the part labeled as X.

……………………………………………………………………………………………… [1 mark]

(ii) What is the zero error shown in Figure 1.1.

………………………………………………………………………………………………...[1 mark]

( b ) F i g u r e 1 . 2 s h o w s t h e r e a d i n g o n t h e micrometer screw gauge when it is used to measure the thickness of 20 sheets of paper.

Figure 1.2

(i) What is the corrected reading of the micrometer screw gauge as shown in Figure 1.2?

………………………………………………………………………………………. [1 mark]

(ii) What is the thickness of one sheet of paper?


[2 marks]



MEASURING INSTRUMENT

1. Diagram 1 shows two types of thermometers. Rajah 1 menunjukkan dua jenis termometer.

(i) Which thermometer is more sensitive ?Termometer yang manakah lebih peka ?

.......................................................................................................................[ 1 mark]

(ii) State one reason for your answer in 1 (b) (i).Nyatakan satu sebab bagi jawapan di 1 (b) (i).

........................................................................................................................

........................................................................................................................[ 1 mark]

2. Figure 2.1 and 2.2 shows the measuring instruments to measure length.


DIAGRAM 1



Understanding Measurement

Diagram 1 shows diameter of beads measured by using a metre rule and two triangle.

Diagram 1

a) State why the beads not arranged from zero.

……………………………………………………………………………………………………….[1 mark]

b) (i) State the actual reading shown in Diagram 1.

[2 marks]

(ii) Calculate the diameter of a bead.

[2 marks]

c) (i) Why do we have to measure more beads to measure diameter of one.

…………………………………………………………………………………………………...[1 mark]

(ii) State a better instrument that can be used to measure the diameter of a bead.

…………………………………………………………………………………………………...[1 mark]


(iii) Give a reason for your answer in (c) (ii).

…………………………………………………………………………………………………...[1 mark]



Understanding Physical Quantity

Choose the best option in the following questions.

1 Which one of the following is not a base quantity? A Length B Weight C Current D Time

2 Which one of the following is not a base unit? A Celsius B Ampere C Kilogram D Second

3 All derived quantities can be derived from base quantities by A addition operation or subtraction operation

B addition operation or subtraction operation or both C multiplication operation or devision operationD multiplication operation or devision operation or both

4 The S.I. base unit for mass is A gram B miligram C kilogram D microgram

5 Which one of the following is true?

Physical quantity

Type of physical quantity

S.I. Unit

A Momemtum Derived quantity

Kg m s-2

B Temperature Base quantitiy

o C

C Work Derived quantity

kg m 2 s -2

D Area Basiequantitiy

m 2




Understanding the Scientific Investigation

1 Which of the following scales is the most suitable to plot a graph?

A 1 cm : 3 unit B 1 cm : 5 unitC 1 cm : 6 unit D 1 cm : 8 unit

2 Which of the following is the best graph ?

3 Which of the following graphs show that y increases linearly with x?

4 Hooke’s law states that applied force F is directly proportional to the extension x of spring if its

elastic limit is not exceeded. Which of the following graphs shows the Hooke’s Law?

5 An experiment is carried out to find the relationship between mass and acceleration of a trolley on a wooden runway.The experiment is repeated by adding the mass of trolleys. The responding variable in this experiment is

A the length of the wooden runway. B acceleration C mass




1

Diagram 1 Rajah 1

1. Diagram 1 shows a miliammeter which has high sensitivity.Rajah 1 menunjukkan sebuah miliammeter yang mempunyai kepekaan yang tinggi. (a) What is meant by sensitivity?

Apakah yang dimaksudkan dengan kepekaan.

……………………………………………………………………………………………… [1 mark ]

(b) State the smallest division on the millammeter.Nyatakan skala terkecil yang terdapat pada miliammeter ini.

…………………………………………………………………………………………....... [1 mark ]

(c) State the reading of the milliammeter.Nyatakan bacaan miliammeter ini.

…………………………………………………………………………. …………………. [1 mark]

(d) State the function of the mirror located below the scale of an ammeter.Nyatakan fungsi cermin yang diletakkan di bawah skala ammeter.


………………………………………………………………………………………………[1 mark]

PHYSICS FORM 4 PRACTICAL SHEET : SPM 2003 Paper 3 Section A


Analysing Scientific Investigation

Question 1 : Lembaga Peperiksaan Malaysia

A student carries out an experiment to find out the relationship between the change in length , y , of a spring and mass, m , of the load on the spring. The arrangement of the apparatus for the experiment is shown in Figure 1 . The length of the spring when a load is placed on the piston is l .

At the beginning of the experiment there is no load. The length of the spring is lo . The actual length of lo is shown in Figure 2. The experiment is repeated by using load with mass , m , equal to 0.5 kg , 1.0 kg , 1.5 kg , 2.0 kg and 2.5 kg. The actual lengths of the spring when the different masses are used are shown in Figure 3, Figure 4, Figure 5, Figure 6 and Figure 7 on page 2.

(a) Based on the aim and the procedure of the experiment state the:

(i) manipulated variable

________________________________________________________________________

(ii) responding variable

________________________________________________________________________

(iii) constant variable

________________________________________________________________________[3 marks]


(b) Measure the length of the spring in Figure 2.

lo = ___________________ [1 mark]


(c) Measure the lengths l of the spring in Figure 3 , Figure 4 , Figure 5 , Figure 6 and Figure 7


when different loads are used.

In each case, calculate the change in length, y , of the spring where;y = ( lo – l )

Tabulate your results for m ,l and y in the space below.

[5 marks]

(d) On the graph paper on page 4 , plot a graph of y against m. [5 marks]

(e) Based on your graph, state the relationship between y and m .

____________________________________________________________________________[1 mark]


exercise chapter 1 form 4

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