MCQ Motion | Online Test | NCERT Class 9 Science

#1. One is moving along a circular path of radius r. What will be the displacement after covering half circle

a) nil

b) 2r

c) 2πr

d) πr

#2. Suppose a boy is enjoying a ride on a merry-go-round which is moving with a constant speed of 10 m/s. It implies that the boy is

a) at rest

b) moving with no acceleration

c) in accelerated motion

d) moving with uniform velocity

#3. Which one the following figure represents uniform motion of a moving object correctly?

#4. If the displacement of an object is proportional to square of time, then the object moves with

a) uniform velocity

b) uniform acceleration

c) increasing acceleration

d) decreasing acceleration

#5. An object is thrown vertically upwards with velocity u. The maximum height h to which it will rise is

a) u/g

b) u/2g

c) u^2/2g

d) u^2/g?

#6. Given v-t graph implies that the object is

a) in uniform motion

b) at rest

c) in non-uniform motion

d) moving with uniform acceleration

#7. Area under (v – t) graph represents a physical quantity. It has unit

a) m^3

b) m^2

c) m

d) m/s

#8. The numerical ratio of displacement to distance of a moving object is

a) equal or less than 1

b) always less than 1

c) always equal to 1

d) always more than 1

#9. Slope of a velocity-time (v-t) graph gives

a) the speed

b) the distance

c) the displacement

d) the acceleration.

#10. Four cars A, B, C & D are moving on a levelled road. Their distance vs time graph is shown. Choose the correct statement

a) Car A is faster than car D

b) Car B is the slowest

c) Car D is faster than car C

d) Car C is the slowest

#11. In which of the following cases of motion, the distance moved & the magnitude of displacement is equal

a) if the car is moving on straight road

b) if the car is moving in circular path

c) the pendulum is moving to & fro

d) the earth is revolving around the sun

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