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Paper 1: Introduction To Physics

Physic, base quantities, derived quantities,

scalar quantities and vector quantities

1. Which of the following bestdescribes physics?

A. A branch of study involvingphysical objects.

B. The study of the interactionbetween matter and energy

C. The study of technologicalinventions

D. The study of forces andmovement.

2. Which of the following is not aphysical phenomenon?

A. The falling of a leaf to theground

B. The occurrence of fourseasons

C. The freezing of water at aparticular temperature

D. A person under stress tendsto get angry easily

3. Establishing relationshipsbetween different aspects of an

event is one aim of the study of

physics. Which of following is an

example of this statement?

A. The speed of a failing objectincreases continuously.

B. A runner completes a onehundred meter race in 12

seconds.

C. If the length of a pendulumincreases, its period alsoincreases.

D. The north pole of a magnetattracts the south pole of

another magnet.

4. Which of the following field is notrelated closely to the study of

physics?

A. BiochemistryB. ElectronicsC. RoboticD. Civil engineering

5. Which of the following is not aphysics phenomena?

A. The occurrence of lightningand thunder.

B. The rotation of earth aroundthe sun

C. The boiling of water at acertain temperature

D. The comparison between thetaste of fried rice with that of

nasi lemak.

6. Which of the following is animportant feature of a physics

quantity?

A. It must be measureableB. It must be visibleC. It must relate to matterD. It must relate to energy

7. The diameter of a hydrogen atomis 0.00000000005 m. This can be

expressed as

A. 5 x 1011mB. 5 x 1010mC. 5 x 10-10mD. 5 x 10-11m

8. Which of the following is the SIunit for electric current?

A. VoltB. AmpereC. OhmD. Coulomb

9. According to Hookes law, F = kxwhere F is the force applied to a

spring, x is the extension of the

spring and k is the spring constant.

What is the SI unit for k?

A. N mB. N m2C. N m-2D. m N-2

10. 150 s is the same asA. 1.5 x 10-6ksB. 1.5 x 10-4msC. 1.5 x 10-3csD. 1.5 x 105ns

11. Which of the following physicalquantities is correctly described?

A. Energy is a vector quantityB. Velocity is a scalar quantityC. Force is a vector quantityD. Momentum is a scalar

quantity

12. Which of the following is acomplete description of thevelocity of a car?

A. 35 m s-1B. To the northC. 35 m s-1to the north

13. A quantity that has magnitudeonly is know as a

A. Scalar quantityB. Vector quantityC. Base quantityD. Derived quantity

14. Which one of the following is nota base quantity?

A Length B Weight

C Current D Time

15. Which one of the following isnot a base unit?

A Celsius B Ampere

C Kilogram D Second

16. All derived quantities can bederived from base quantities by

A addition operation or subtraction

operation

B addition operation or subtractionoperation or both

C multiplication operation or

division operation

D multiplication operation or

division operation or both

17. The S.I. base unit for mass isA gram B miligram

C kilogram D mikrogram

18. Which one of the base quantities is

not involve in force?

A Length B Time

C Temperature D Mass

19. Which of the derived quantities is the

combination of a base quantities

only?

A Force B Volume

C Acceleration

20. Which one of the following pairs of

derived quantities is true?

A Work and mass

B Force and current

C Pressure and temperature

D Weight and potential difference

21. Which of the following physical

quantities is a base quantityA The weight of an astronaut on

the Moons surface is 10 N.

B The velocity of a cyclist rides a

bycle is 70 km j-1

C The perimeter of a field is 380 m

D The power of a lamp is 60 W.

22. Which one of the base quantities is

not involve in acceleration?

A Length

B Mass

C Time

23. Which one of the following apparatus

is not be used to measure the

density of a metal cube?

A Ruler

B Stop watch

C Triple beam balance

24. Which one of the following derived

quantities contains length and time

only?

A VelocityB Momemtum

B Force

D Pressure

25. Which one of the following is true?

Physical

quantity

Type of

physical

quantity

S.I. Unit

A MomemtumDerived

quantityKg m s-

2

B TemperatureBase

quantity

oC

C WorkDerived

quantity kg m2

s -2

D AreaBasie

quantitym

2

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26. The kinetic energy of a moving object

is given by

E = m v2

where m = mass and v = velocity.

The number of the base quantities

involve in the kinetic energy ,E is or

are

A 1 B 2 C 3

27. Which of the following pairs of

physical quantities and S.I. units istrue?

Physical S.I. unit

quantity

A Area foot squared

B Weight Kilogram

C Power Joules per minute

D Density Kilograms per metre

cubed

28. Which one of the following is true?

A The S.I. units of charge is A s

B The S.I. units of volume is cm3

C The S.I. units of velocity is km h

- 1

D The S.I. units of acceleration is

cm s- 2

29. A physical quantity is given by

M = e d2

where the unit of e is unit kilogram

and the unit of d is metre. The units

of M are

A kg2m

B kg- 2

m

C kg m 2

D kg m- 2

E kg2m

2

30. The period of oscillation for an

inertial balance is given by

T2= k m where

T = The period of oscillation and the

unit is s ,

m = Mass and the unit is kg

k = constant

The units of k are

A kg s2

B kg- 1

s2

C kg s

D kg- 2

s-1

E kg2s

31. Which of the following quantity is a

scalar quantity.

A Weight B Volume

C Force D Acceleration

32. Which of the following quantity is a

vector quantity.

A Work B Power

C Velocity D Distance

33. Which one of the following pairs of

vector quantities is true?

A Impulse and area

B Power and pressure

C Weight and velocity

34. Every number can be written in

standard form, particularly in the

cases of

A very small numbers

B very large numbers

C very small and very large

numbers

35. The standard form for 15200 is

A 15.2 x 10 2

B 1.52 x 103

C 1.52 x 104

D 0.152 x 10-4

E 1.52 x 10-5

36. The product of 2.4 x 10-2

and 5.0 x 10- 4

is

A 1.2 x 106

B 1.2 x 105

C 1.2 x 10- 5

D 1.2 x 10- 7

E 1.2 x 10-8

37. If A = 2 x 10 -4 and B = 3 x 10 -

5

then the value of A + 5B is

A 1.7 x 105 B 3.5 x 10

- 5

C 1.7 x 104 D 3.5 x 10 -

4

E 1.7 x 103

38. What is 0.0455 kg expressed in

standard form?

A 0.455 x 10- 1

kg

B 4.55 x 10- 2

kg

C 45.5 x 10- 3

kg

D 455 x 10- 4

kg

39. The prefixes according to their value

in ascending order are

A Giga, mega, kilo ,centi

B Mikro, mili, centi ,kilo

C Mega ,giga, kilo, centi

D Centi, giga, mikro, mili

40. Radio 5 RTM station operates at

105 .6 M Hz. The expression of the

frequency in units of Hz is

A 1.056 x 108

Hz

B 1.056 x 106

Hz

C 1.056 x 104

Hz

D 1.056 x 10- 4

Hz

E 1.056 x 10- 8

Hz

41. 5 x 10

- 4

seconds is equivalent toA 0.05 microseconds

B 0.5 microseconds

C 50 microseconds

D 500 microseconds

E 5000 microseconds

42. Which one of the following

measurements is different?

A 2.3 x 102m

B 2.3 x 104

cm

C 2.3 x 106mm

43. Which one of the following

measurements is smallest ?

A 1.5 x 10

2

kgB 1.5 x 10

7g

C 1.5 x 1012

g

44. The measurents of length according

to their value in ascending order are

A 7 x 10- 4

km , 7 x 102cm ,

7 x 104mm

B 7 x 102cm , 7 x 10

4mm ,

7 x 10- 4

km

C 7 x 10

4

mm , 7 x 10

- 4

km ,7 x 10

2cm

45. The volume of a metal sphere is 12

cm3. This volume in units of m

3is

A 1.2 x 10- 2

B 1.2 x 10- 3

C 1.2 x 105

D 1.2 x 107

E 1.2 x 10- 9

46. The velocity of a car is 108 km h-1.

What is the velocity in units of m s-1

?

A 20 B 30C 50 D 60

E 90

47. The pressure exerted by a box on a

surface is 500 N cm2

. What is the

pressure in units of Pa?

( 1 Pa = 1 N m -2)

A 5 x 10- 2

B 5 x10-1

C 5 x 104 D 5 x 10

6

E 5 x 108

48. The acceleration of a trolley is

2000 cm s-2

This acceleration in S.I. unit is

A 0.002 B 0.02

C 0.2 D 2

E 20

49. Which one of the following prefixes

is less than 1?

A Mega B Desi

C Kilo

50. Which of the following is true?

A 0.00023 = 2.3 x 10- 3

B 0.05 = 5 x 10- 1

C 3450 = 3.450 x 104

D 46.531 =4.6531 x 104

E 5678.9 = 5.6789 x 103

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Measurement and scientific investigation

1. A sensitive instrument is one thatA. Gives accurate readingsB. Gives precise readingC. Responds to very quantity

being measured

D. Has very little parallax error2. Diagram 1 shows a rod placed

next to a ruler marked in cm

The position of the end of the rod

was estimated by four students

as follows:

16.3 cm, 16.4 cm, 16.5 cm, 16.2 cm

This represents

A. A systematic errorB. A random errorC. Lack of sensitivityD. Parallax error

3. Which of the following is anacceptable way to express

uncertainty in a measurement?

A. 1.52 0.1B. 1.52 0.001C. 1.523 0.01D. 1.52 0.01

4. In the determination ofacceleration due to gravity at a

certain place, the experiment is

repeated several times and an

average value for g is computed.

A. Improve the precision of themeasurement.

B. Improve the accuracy of themeasurement.

C. Reduce the systematic errorin the measurement.

5. Diagram 2 shows a dartboardwith the positions of 6 darts

thrown by a player.

This shows a case of

A. High accuracy but lowconsistent

B. High consistent and lowaccuracy

C. High consistent and highaccuracy

D. Low consistent and loaccuracy

6. Zero error is a form ofA. Random errorB. Systematic error

C. Personal errorD. Parallax error

7. Diagram 3 shows a measuringinstrument

The part labeled X is for

measuring the

A. Internal diameter of a tubeB. External diameter of a tubeC. Depth of a holeD. Thickness of a cardboard

8. The ability of an instrument gives

consistent reading , when repeated

readings are taken is called as

A accuracy B precision

C sensitivity D error

9. Which of the following should be the

small value ,so that the precision

becomes high?

A Actual value B Mean

C Relative error D Relative

deviation

10. The ability of an instrument to detect

a slight change that occurs in the

measured quantity is called as

A precision B accuracyC sensitivity D error

11. The accuracy of an instrument

increases if

A the number of significant

figures increases

B the relative deviation relative

increases

C the relative error increases

12. Based on the table below, what are

the measuring instruments J, K andL?

Measuring

instruments

Measurement

J 2.52 0.01 cm

K 15.20.1 cm

L 125.40.1 g

J K L

A Micrometer Vernier Spring

screw gauge calipers balance

B Micrometer Vernier Triple beamScrew gauge calipers balance

C Vernier Metre Triple beam

calipers ruler balance

13. Which of the following is true?

A The parallax error is not

effected to the accuracy

B The accurate instrument is also

the sensitive instrument

C The accuracy increases when

the measurement nearest to

actual value.

14. Which of the following is true?

A A stop watch is more sensitivethan an electronic

B An ammeter is more sensitive

than a galvanometer

C A vernier calipers is more

sensitive than a metre ruler

D A thinner-walled bulb

thermometer is more sensitive

than a thickerwalled bulb

thermometer

15. Which of the following is most likely

to show a precise shooting?

16. Which of the following is most likely

to show an accurate shooting but

not so presicely?

17. It take 5.01 s for an object to move to

a certain dinstace. When an electronic

watch is used the time is recorded as

4.85 s. What is the percentage oferror?

A 0.6 % B 2.1 %

C 3.2 % D 5.2 %

E 7.7 %

18. Which of the following statements

about errors is correct?

A Zero error is random error

B Random errors can be reduced by

taking repeat readings.

C Systematic errors can be due to

instruments which are notsensitive.

D Systematic errors cause the

readings scattered on both

sides of the actual value.

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19. Which of the following experiment

techniques can reduce systematic

error of the quantity being

measured?

A Measuring the diameter of a

wire at different points along

the wire.

B Adjusting an ammeter to read

zero before measuring a

current.C Timing a large number of

oscillations to find the period of

a pendulum.

D Measuring the thickness of a

large number of pieces of paper

to find the thickness of one

piece.

20. The error is caused by the position of

eye is not parallel to the scale of an

instrument is called as

A positive zero errorB negative zero error

C parallax error

21. The following table shows the

readings measured by using different

measuring instruments X, Y dan Z.

Measuring

instrument

Reading / mm

X

Y

Z

2.38

52

6.5

Which of the following is true?X Y Z

A Ruler Vernier Mikrometer

calipers screw gauge

B Vernier Mikrometer Measuring

calipers screw gauge tape

C Measuring Ruler Vernier

Tape calipers

D Mikrometer Ruler Vernier

Screw gauge Calipers

22. Table shows readings of the

thickness of a book measured by fourdifferent students. Which of the

students recorded the true readings.

Student Ruler

/ cm

Vernier

calipers

/ cm

Mikro

meter

screw

gauge

/cm

A

B

C

D

W

X

Y

Z

2.17

2.174

2.17

2.2

2.2

2.2

2.174

2.17

2.174

2.17

2.2

2.174

23. Which of the following accuracy of

the measuring instruments is true?

Measuring instruments Accuracy

A Ruler 1 mm

B Vernier calipers 0.001 cm

C Mikrometer screw gauge 0.1 mm

24. The focal length of a convex lens is

12 cm. If the focal length is measuredby using a ruler, the reading recorded

ought to be

A 11.9 cm B 12.0 cm

C 12.00 cm D 12.1 cm

25. The diagram shows the existence of

zero errors of a vernier calipers.

What is the value of the zero error?

A + 0.04 cm B - 0.04 cm

C + 0.06 cm D - 0.06 cm

26. The following diagram shows a

vernier calipers.

What is the reading of the vernier

calipers ?

A 3.17 cm B 3.08 cm

C 2.18 cm C 2.07 cm

27. Figure(a) shows the existence of zero

error of a vernier calipers. Figure(b)

shows the reading of the vernier

calipers for diameter of metal

sphere.

The actual reading of diameter of the

metal sphere is

A 2.02 cm B 2.04 cm

C 2.06 cm D 2.08 cm

28. The thickness of a paper is measured

by using a micrometer screw gauge

should be recorded as

A 2 mm B 2.1 mm

C 2.14 mm D 2.142 mm

29. Diagram shows a micrometer screw

gauge reading when it is closed at itsgap.

The subsequent readings must be

corrected by

A adding 0.02 mm

B subtracting 0.02 mmC adding 0.03 mm

D subtracting 0.03 mm

30.

Based on the diagram above, the

thickness of a sheet of paper is

A 3.25 cm B 3.75 cm

C 0.325 cm D 0.0375 cm

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