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Class 9th PHYSICS: KINEMATICS

Total questions: 121

Worksheet time: 2hrs 1mins

Name
Class
Date
1.

Speed × time is equal to

a)

displacement

b)

distance

c)

velocity

d)

velocity

2.

Scalar quantities are completely described by their.

a)

Unit

b)

Area

c)

Direction

d)

Magnitude

3.

Gravitational acceleration for bodies falling down freely is

a)

positive

b)

negative

c)

zero

d)

always equal to one

4.

Gravitational acceleration is acceleration of bodies

a)

On ground

b)

In air

c)

Freely falling

d)

None of above

5.

Flying speed of a falcon is

a)

100 kmh-1

b)

200 kmh-1

c)

50 kmh-1

d)

500 kmh-1

6.

A stone is dropped from top of a building which is 180 metres high. If stone hits ground after 6 seconds, its final velocity will be.

a)

40 ms−1

b)

50 ms−1

c)

60 ms−1

d)

110 ms−1

7.

If object is at rest then distance-time graph is

a)

straight lined

b)

variable

c)

constant

d)

none of above

8.

Velocity with which a paratrooper comes to ground is called

a)

average velocity

b)

variable velocity

c)

constant velocity

d)

terminal velocity

9.

In a graph, in which time is taken along X-axis and speed is taken along Y-axis is called

a)

speed-time graph

b)

pi chart

c)

distance graph

d)

none of above

10.

If a body does changes its position with respect to its surroundings, it is said to be at

a)

distance

b)

position

c)

rest

d)

motion

11.

A quantity described by magnitude and direction both is called

a)

scalar

b)

vector

c)

unit

d)

none of above

12.

Motion of a butterfly is an example of

a)

vibratory motion

b)

circular motion

c)

linear motion

d)

random motion

13.

Distance covered ⁄ time taken is equal to

a)

speed

b)

velocity

c)

displacement

d)

position

14.

Total length of path is named

a)

displacement

b)

distance

c)

length

d)

none of above

15.

If a body covers equal distances in equal intervals of time however short interval may be, then it has

a)

uniform velocity

b)

uniform speed

c)

uniform acceleration

d)

non-uniform velocity

16.

A bus starts from rest with acceleration of 0.5 ms−2. If it has moved through 100 m, then its speed will be

a)

23 kmh−1

b)

25 kmh−1

c)

34 kmh−1

d)

36 kmh−1

17.

If line of motion is curved then body exhibit

a)

linear motion

b)

rotatory motion

c)

translational motion

d)

vibratory motion

18.

If a body doesn't rotates then its motion is

a)

Vibratory

b)

rotatory

c)

both vibratory and rotatory

d)

Translational

19.

A physical quantity which can be completely described by its magnitude only is called

a)

Scalar

b)

vector

c)

displacement

d)

velocity

20.

Gravitational acceleration for bodies moving up is

a)

positive

b)

negative

c)

zero

d)

always equal to one

21.

A train moves with a uniform velocity of 27 kmh−1 for 15 s. distance covered by it is

a)

112.5 m

b)

115 m

c)

120 m

d)

135 m

22.

Rest state and motion of body are

a)

non relative

b)

not related

c)

relative

d)

none of above

23.

Velocity is rate of change of

a)

displacement

b)

distance

c)

force

d)

none of above

24.

Distorted motion of an object is

a)

circular

b)

random

c)

vibratory

d)

vibratory and translational

25.

A cyclist completes half round of a circle track of radius 420 metres in 3 minutes. Its speed will be

a)

5 ms−1

b)

8 ms−1

c)

10 ms−1

d)

7.33 ms−1

26.

If a body does not change its posotion with respect to its surroundings, it is said to be at

a)

Rest

b)

motion

c)

distance

d)

position

27.

Quantities between which a graph is plotted are known as

a)

constants

b)

co-efficients

c)

surds

d)

variables

28.

Spinning of body about its axis is

a)

rotator

b)

circular

c)

translational

d)

none of above

29.

A tennis ball hits vertically upward with velocity of 25ms−1 and takes 4 s to reach highest point. Maximum height reached by ball is

a)

45 m

b)

55 m

c)

30 m

d)

50 m

30.

Distance covered by an object in unit time is called its

a)

Speed

b)

velocity

c)

displacement

d)

position

31.

Time taken by a train to slow down from 80 kmh-1 to 20 kmh-1 with a uniform deceleration of 2 ms-2 is

a)

9 s

b)

10 s

c)

8.3 s

d)

8.4 s

32.

Length of a path between 2 points is called

a)

displacement

b)

distance

c)

position

d)

velocity

33.

If velocity of a body increases with time, then its acceleration is

a)

zero

b)

positive

c)

negative

d)

none of above

34.

Types of motion are

a)

2

b)

3

c)

4

d)

5

35.

Rate of change of velocity is called

a)

speed

b)

distance

c)

force

d)

acceleration

36.

Shortest distance between 2 points which also has direction and magnitude is termed as

a)

position

b)

velocity

c)

displacement

d)

distance

37.

In terms of velocity, symbol vf is used for

a)

final velocity

b)

initial velocity

c)

negative velocity

d)

total velocity

38.

Motion of riders in Ferris wheel is

a)

rotatory

b)

translational

c)

non relative

d)

none of three options

39.

Height of tower when stone dropped from it reaches ground in 5 s is

a)

130 m

b)

125 m

c)

150 m

d)

200 m

40.

Negative acceleration is called

a)

friction

b)

retardation

c)

uniform acceleration

d)

variable acceleration

41.

Study of motion of an object without discussing cause of motion is known as

a)

kinematics

b)

dynamics

c)

trinamics

d)

friction

42.

If a body doesn't change its position with respect to its surroundings then it’s in state of

a)

motion

b)

rest

c)

equilibrium

d)

weightlessness

43.

Location of a place or a point with respect to some reference point(origin) is known as

a)

velocity

b)

rest

c)

displacement

d)

position

44.

Motion of an object in a circular path is called

a)

random motion

b)

vibratory motion

c)

circular motion

d)

linear motion

45.

Reference point is taken as

a)

origin

b)

anywhere on x-axis

c)

anywhere on y-axis

d)

in between two coordinates

46.

If a body covers equal displacement in equal intervals of time however short interval may be, then it has

a)

uniform velocity

b)

uniform speed

c)

non-uniform speed

d)

uniform acceleration

47.

An athlete completes its 200 metre race in 25 seconds. Its average speed will be

a)

6 ms−1

b)

10 ms−1

c)

8 ms−1

d)

5 ms−1

48.

If a body covers equal distance in equal intervals of time then its speed is

a)

variable

b)

uniform

c)

equal

d)

constant

49.

A car is moving at a speed of 36 kmh−1. Its speed expresses in ms−1 is

a)

25 ms−1

b)

10 ms−1

c)

20 ms−1

d)

30 ms−1

50.

A brick is dropped from top of a building. If it hits ground after 6 seconds, height of building will be

a)

120 metres

b)

150 metres

c)

110 metres

d)

180 metres

51.

Displacement ⁄ time taken is equal to

a)

uniform speed

b)

velocity

c)

speed

d)

distance

52.

If body has equal changes in velocity in equal intervals of time however short interval may be, then it has

a)

uniform velocity

b)

uniform speed

c)

distance

d)

uniform acceleration

53.

Change in velocity ⁄ time taken is equal to

a)

speed

b)

distance

c)

displacement

d)

acceleration

54.

Equations of motion for bodies moving with uniform acceleration are of

a)

2 types

b)

4 types

c)

3 types

d)

5 types

55.

Mass, length, speed, work, time and energy are examples of

a)

velocity

b)

scalar

c)

vector

d)

displacement

56.

Motion of a baby in a swing is an example of

a)

circular motion

b)

rotatory motion

c)

random motion

d)

vibratory motion

57.

Rate of displacement of a body is called its

a)

non-uniform speed

b)

non-uniform velocity

c)

velocity

d)

speed

58.

Among following scalar quantity is

a)

length

b)

mass

c)

volume

d)

all 3 options

59.

Deceleration or retardation is synonyms of

a)

positive acceleration

b)

negative acceleration

c)

zero acceleration

d)

speed

60.

A bus accelerates at 1 ms−2 from an initial velocity of 4 ms−1 for 10s. distance moved in that time will be

a)

90 metre

b)

25 metre

c)

60 metre

d)

72 metre

61.

Disordered or irregular motion of an object is called

a)

vibratory motion

b)

circular motion

c)

linear motion

d)

random motion

62.

A motion in which a body moves along a line without any rotation is known as

a)

translatory motion

b)

rotatory motion

c)

vibratory motion

d)

rest

63.

In distance-time graph time is taken on

a)

y-axis

b)

x-axis

c)

z-axis

d)

in between two coordinates

64.

Velocity, displacement, force, momentum are examples of

a)

energy

b)

scalar

c)

vector

d)

length

65.

Motion of a steering wheel is an example of

a)

vibratory motion

b)

circular motion

c)

rotatory motion

d)

linear motion

66.

Quantity whose value varies with independent quantity is termed as

a)

negative quantity

b)

dependent quantity

c)

fixed quantity

d)

zero quantity

67.

A physical quantity which can be completely described by its magnitude and direction is called

a)

scalar

b)

vector

c)

displacement

d)

velocity

68.

Numerical value with an appropriate unit is called

a)

rate

b)

magnitude of quantity

c)

amount

d)

position

69.

Acceleration of freely falling bodies is known as

a)

galileo acceleration

b)

going acceleration

c)

graphical acceleration

d)

gravitational acceleration

70.

To and fro motion of a body about its mean position is termed as

a)

random motion

b)

vibratory motion

c)

circular motion

d)

rotatory motion

71.

A spinning motion of a body about its axis is called its

a)

rotatory motion

b)

vibratory motion

c)

circular motion

d)

linear motion

72.

Displacement is defined as

a)

the longest distance between two points

b)

the distance between two points

c)

the shortest distance between two points

d)

all of above

73.

If a car is moving at 30 ms-1 and uniformly slows down to 15 ms-1 in 5s then its deceleration is

a)

-3 ms-1

b)

-4 ms-1

c)

5 ms-1

d)

7 ms-1

74.

A vector quantity among following is

a)

velocity

b)

force

c)

both velocity and force

d)

energy

75.

A bus moving in a straight and leveled road is in

a)

linear motion

b)

vibratory motion

c)

circular motion

d)

random motion

76.

Rate of change of distance is

a)

velocity

b)

force

c)

position

d)

speed

77.

Motion of Earth around Sun is an example of

a)

random motion

b)

vibratory motion

c)

circular motion

d)

linear motion

78.

If a car is traveling at 8 ms−1 accelerates uniformly at 2 ms−2, its velocity after 5 seconds will be

a)

20 ms−1

b)

23 ms−1

c)

25 ms−1

d)

28 ms−1

79.

A train starts from rest. It acquires a speed of 25 ms−1 after 20 s. total distance is

a)

500 m

b)

31.25 m

c)

300 m

d)

250 m

80.

Children playing on see-saw exhibit

a)

translational motion

b)

rotatory motion

c)

linear motion

d)

vibratory motion

81.

Rate of change of velocity of a body is called its

a)

displacement

b)

acceleration

c)

speed

d)

distance

82.

A passenger John is sitting in a moving car, so with respect to other passengers he is at

a)

rest

b)

motion

c)

displacement

d)

position

83.

If velocity of a body decreases with time, then its acceleration is

a)

zero

b)

positive

c)

negative

d)

none of 3 options

84.

If a car is moving at a velocity of 30 ms−-1 then slows down uniformly to 20ms−1 in 6s. Its retardation will be

a)

5 ms−2

b)

2.33 ms−2

c)

1.67 ms−2

d)

4 ms−2

85.

In terms of velocity, symbol vi is used for

a)

initial velocity

b)

negative velocity

c)

total velocity

d)

final velocity

86.

Gravitational acceleration is denoted by

a)

a

b)

g

c)

r

d)

G

87.

Third equation of motion can be represented as

a)

Vf = Vi + at

b)

2aS = V2f - V2i

c)

2aS = Vf - Vi

d)

none of 3 options

88.

Value of gravitational acceleration is approximately

a)

15 ms−2

b)

25 ms−2

c)

10 ms−2

d)

5 ms−2

89.

Straight line motion of a body is known as

a)

circular motion

b)

linear motion

c)

random motion

d)

vibratory motion

90.

Alex is walking at rate of 2km/h towards east, it is an example of

A.

B.

C.

D.

a)

vector

b)

scalar

c)

length

d)

energy

91.

Velocity of cyclist when he completes half round of a circular track of radius 318 m in 1.5 min is

A.

a)

10 ms-1

b)

8 ms-1

c)

7.07 ms-1

d)

9 ms-1

92.

A bus starts from rest. Its velocity becomes 30 ms−1 in 8s. Its acceleration will be

a)

3 ms−2

b)

5 ms−2

c)

2 ms−2

d)

3.5 ms−2

93.

Quantities between which graph is plotted is called

a)

scalars

b)

vectors

c)

variables

d)

none of above

94.

Velocity of ball at highest point when its thrown vertically upward is

a)

-10 ms-1

b)

10 ms-2

c)

8 ms-1

d)

Zero

95.

A car starts from rest. It moves through 2 km in 100 s with uniform acceleration. Its speed at end of 100 s will be

a)

80 −1

b)

20 −1

c)

40 ms−1

d)

10 −1

96.

A cyclist completes half round of a circle track of radius 420 metres in 3 minutes. Its velocity will be

a)

4.67 ms−1

b)

5.33 ms−1

c)

2.8 ms−1

d)

3.5 ms−1

97.

A passenger John is sitting in a moving car, as per an observer outside car, he is at

a)

position

b)

rest

c)

motion

d)

displacement

98.

(Final velocity - initial velocity) is called

a)

position

b)

acceleration

c)

change in velocity

d)

displacement

99.

A ball is thrown vertically upward. Its velocity at highest point is

a)

zero

b)

10 ms−1

c)

15 ms−1

d)

20 ms−1

100.

A straight line parallel to time-axis on a distance-time graph tells that object is

a)

at rest

b)

in motion

c)

moving with constant speed

d)

moving with variable speed

101.

The to and fro motion of a body about its mean position is known as

a)

Vibratory motion

b)

Rotatory motion

c)

Circular motion

d)

Random motion

102.

By dividing displacement of a moving body with time, we obtain

a)

Speed

b)

Acceleration

c)

Velocity

d)

Deceleration

103.

A scalar has

a)

Direction only

b)

Magnitude only

c)

Both magnitude and direction

d)

None of these

104.

A body covers distance 20 m in 5 seconds. Its speed will be

a)

2 ms-1

b)

4 ms-1

c)

5 ms-1

d)

10 ms-1

105.

A ball is thrown vertically upward. Its velocity at the highest point is

a)

10ms-1

b)

Zero

c)

10 ms-2

d)

None of these

106.

If an object is moving with constant speed then its distance time graph will be a straight line

a)

Along time axis

b)

Along distance axis

c)

Parallel to time axis

d)

Inclined to time axis

107.

The shortest distance between two points which has magnitude and direction is called

a)

Position

b)

Displacement

c)

Length

d)

Distance

108.

The disordered or irregular motion of an object is called

a)

Linear motion

b)

Circular motion

c)

Random motion

d)

Vibratory motion

109.

The motion of a body about an axis is called

a)

Circular motion

b)

Rotatory motion

c)

Vibratory motion

d)

Random motion

110.

Tick the vector quantity

a)

Weight

b)

Time

c)

Volume

d)

Work

111.

A car starts from rest. It acquires a speed of 24 ms-1 after 20 s. The distance moved by the car during this time is:

a)

31.25 m

b)

250 m

c)

500 m

d)

5000 m

112.

The motion of a steering wheel about its axis is a

a)

Circular motion

b)

Vibratory motion

c)

Rotatory motion

d)

Random motion

113.

A body has translatory motion if it moves along a

a)

Straight line

b)

Circle

c)

Line without rotation

d)

Curved path

114.

In SI units the value of 'g' is:

a)

19.6 ms-2

b)

9.8 ms-2

c)

4.9 ms-2

d)

12.5 ms-2

115.

A change in position is called

a)

Speed

b)

Velocity

c)

Displacement

d)

Distance

116.

Freely falling bodies move under the action of

a)

Force

b)

Gravity

c)

Velocity

d)

Mass

117.

Which of the following is a vector quantity?

a)

Speed

b)

Distance

c)

Displacement

d)

Power

118.

The slope of distance time graph gives

a)

Speed of the body

b)

Distance covered by the body

c)

Acceleration of the body

d)

Deceleration of the body

119.

Which of the following is a vector quantity?

a)

Speed

b)

Distance

c)

Displacement

d)

Power

120.

If an object is moving with constant speed then its distance time graph will be a straight line

a)

Along time axis

b)

Along distance axis

c)

Parallel to time axis

d)

Inclined to time axis

121.

A body covers distance 20 m in 5 seconds. Its speed will be

a)

2 ms-1

b)

4 ms-1

c)

5 ms-1

d)

10 ms-1