Revision Physics Form 4 Chapter 1

NAME :_____________________________ DATE:______________.

REVISION PHYSICS SPM 2010PHYSISCS FORM 4:

BY: Mr. PEETERCHAPTER 1: INTRODUCTION TO PHYSICS

PRACTICE 1: Vernier Callipers

1. Write down the readings :(a)

7 8

5Answer: …………………..

0 10

(b) 4 5

Answer: ……………………..

50 10

(c)6 7

Answer: ………….………..

0 5 1

(d)0 1 Answer: ………………..

0 5 10

2. (a) The following diagram shows the scale of a vernier calliper when the jaws are closed.

0 1

0 5 10

Zero error = …………. cm

(b). The following diagram shows the scale of the same vernier calliper when there are

40 pieces of cardboard between the jaws.

5 6

0 5 10

Reading shown = ……….…….cm

Corrected reading = …………………………….……..cm

3. Diagram 3 (a) shows the reading on a pair of vernier callipers when its jaws are closed with nothing in between them. Diagram 3(b) shows the reading when it is used to measure the thickness of a piece of wood.

0cm 1 2

4 5 6

55 0 100 10

(a) (b)What is the actual thickness of the wood?

Zero error = ………………….. cm

Reading shown = …………………..cm

Actual thickness of the wood = ……………………………….cm

4. a)Explain the meaning of i) accuracy

________________________________________________________________________________________________________________________________________________________________________

ii) sensitivity ________________________________________________________________________________________________________________________________________________________________________

iii) precision.________________________________________________________________________________________________________________________________________________________________________

PRACTICE 2: Micrometer Screw Gauge

1. (a) Determine the readings of the following micrometer screw gauges.

0 00 5

450

Zero error = ............……. mm Zero error = .............…….. mm

(b) Determine the readings of the following micrometer screw gauges.

0 5 0 5 20

015

Zero error = …………mm

Reading shown = ……………..mm

Corrected reading = ………………………mm

2. Write down the readings shown by the following micrometer screw gauges.(a) (b)

040 0 35

5 5 10

35 30

Answer: ………..………… Answer: …………………(c) (d)

0 25 0 5 20

20 15

Answer:……….………… Answer: …………………

PRACTICE 3:1. Which of the following is a base SI quantity?

A Weight B energyC Velocity D Mass

2. Which of the following is a derived quantity? A Length B MassC Temperature D Voltage

3. Which of the following is not a basicunit?

A NewtonB kilogram

C ampere D second

4. Which of the following quantities cannot be derived? A Electric current B power C Momentum D Force

5. Which of the following quantities is not derived from the basic physical quantity of length?A Electric charge B DensityC Velocity D Volume

6. Initial velocity u, final velocity v, time t and another physical quantity k is related by the equation v - u = kt. The unit for k is

A m s-1 Bm-1 s

C m s-2 D m2 s-2

7. Which of the following has the smallest magnitude? A megametre B centimetreC kilometre D mikrometre

8.4 328 000 000 mm in standard form is

A 4.328 x 10-9 m B4.328 x 10-6 m

C 4.328 x 106 m D4.328 x 109 m

9. Which of the following measurementsis the longest?

A 1.2 x 10-5 cm B120 x 10-4 dm

C 0.12 mm D1.2 x 10-11 km

10.The diameter of a particle is 250 m. What is its diameter in cm? A 2.5 x 10-2 B 2.5 x 10-4

C 2.5 x 10-6 D 2.5 x 10-8

11. Which of the following prefixes is arranged in ascending order? A mili, senti, mikro, desi B mikro, mili, senti, desi C mili, mikro, desi, senti D desi, mikro, mili, senti

12. Velocity, density, force and energy are A basic quantities B scalar quantities C derived quantities D vector quantities

13. Which of the following shows the correct conversion of units? A. 24 mm3 =2.4 x 10-6 m3 B. 300 mm3 =3.0 x 10-7 m3 C. 800 mm3 =8.0 x 10-2 m3 D. 1 000 mm3 =1.0 x 10-4 m3

14. Which of the following measurements is the shortest ? A 3.45 x 103 m B 3.45 x 104 cm C 3.45 x 107 mm D 3.45 x 1012 cm

15. The Hitz FM channel broadcasts radio waves at a frequency of 92.8 MHz in the north region. What is the frequency of the radio wave in Hz?

A 9.28 x 104 B 9.28 x 105

C 9.28 x 107 D 9.28 1010

16. An oscilloscope records a time interval of 25 ns. What is the time period in the unit s?A 2.5 x 10-5 s B 2.5 x 10-6 sC 2.5 x 10-7 s D 2.5 x 10-8 s

17. A suitable graph scale must be shown effectively. Choose the scale that can be managed easily.A 1 cm to 3 units B 2 cm to 10 unitsC 3 cm to 5 units D 4 cm to 7 units

18. Which of the following force-compression graphs shows that the compression of a spring is directly proportional with the force that is applied?

A

B

C

D

19.

The above table shows the data of an experiment. Which of the following statements is true about the experiment?A The variable that is not dependant on the experiment is the temperatureB The variable that is dependant on the experiment is the timeC Temperature changes inversely to timeD The absolute error of the thermometer used is 0.5˚C

20.Which of the following statements is true about measurement?A The accuracy of time measurement by a stopwatch depends on the type of watchB The unit of measurement of a thermometer is KelvinC An ammeter is more sensitive than a miliammeterD The metre ruler has an accuracy of 0.1 cm

21.Which of the following statements is not true about the physical quantity?A A physical quantity comprises the basic quantity and the derived quantityB Derived quantity is defined in the mentioning of the basic quantityC The quantity of length is measured with the metre unitD An example of the basic quantity is velocity

22.The sensitivity of the mercury thermometer is influenced by the following exceptA the thickness of the bulb wallB the length of the thermometerC the colour of the mercuryD the size of the bulb

23.

The above figure shows the graph of potential difference against the current. Which of the following statements is not true?A The gradient of the graph has a positive value

B The value of the potential difference is approximately 1.5 V when the current is zeroC The value of the potential difference decreases uniformly according to the currentD The apparatus for measuring the potential difference is the voltmeter

24.Which of the following statements is true about accuracy and sensitivity?A Accuracy is the difference between the measured value and the zero error valueB Sensitivity is the ability of the measuring apparatus to detect the error of the quantity

that is measuredC Accuracy can be shown by the number of repeated measurement readingsD The measuring apparatus that is sensitive will always give an accurate measurement 25.Which of the following SI prefixes is correct?A 1 MW = 106 WB 1 mA = 10-2 AC 1 μs = 10-9 sD 1 mF = 106 F

PRACTICE 4: 1. The thickness of a box was measured 5 times using the same method.

The results are 14.4cm, 14.4cm, 14.2cm, 14.3cm and 14.5cm. Calculate the relative deviation.

thickness deviation

2. Convert the following masses to kilogram(kg) .a. 0.000 082Mgb. 824 000 000gc. 48 000 000mg

3. Change the units givena. 98.86 ms = __________nsb. 846.24km = ___________ nmc. 6473 000ns = ___________ ms