Worksheetsmotion class 9 part 1
Total questions: 10
Worksheet time: 5mins
A particle is moving in a circular path of radius r. The displacement after half circle will be
r
2r
zero
2.ƛ r
Which of the following is most likely not a case of uniform circular motion?
(a) Motion of the earth around the sun
(b) Motion of a toy train on a circular track
(c) Motion of a racing car on a circular track
(d) Motion of hours’ hand on the dial of a clock
From the given υ – t graph, it can be inferred that the object is
uniform motion
at rest
in non-uniform motion
moving with uniform acceleration
Four cars A, B, C and D are moving on a levelled road. Their distance versus time graphs are shown in the adjacent figure. Choose the correct statement.
Car A is faster than car D.
Car B is the slowest.
Car D is faster than car C.
Car C is the slowest.
Which of the following figures correctly represents uniform motion of a moving object?
a
b
c
d
Velocity-time graph of an object is given below. The object has
Uniform velocity
Uniform speed
Uniform retardation
Variable acceleration
Which one of the following graphs shows the object to be stationary?
a
b
c
d
A worker covers a distance of 40 km from his house to his place of work, and 10 km towards his house back. Then the displacement covered by the worker in the whole trip is
zero km
10 km
30 km
50 km
Rate of change of displacement is called
Speed
Deceleration
Acceleration
Velocity
SI Unit of measurement of acceleration is
m/s
m/s2
m/hr
M
