MULTIPLE CHOICE QUESTIONS ON MOTION
CLASS 9
1. A car with an initial speed of
, undergoes an acceleration of
the end of the acceleration, the final speed of the car is
. At
. What is the
time taken for the acceleration?
(a) 5s
(b) 3s
(c) 6s (d) 2s
2. An object is falling under gravity with terminal velocity.What is happening to
its speed?
(a) It is increasing
(b) It is decreasing to a lower value
© It is staying constant
(d) It is decreasing to zero
3. What information would you expect to find from a given velocity-time graph?
The velocity, displacement and acceleration
The velocity and displacement
The velocity
The velocity and acceleration
4. A racing car accelerates uniformly through three gear changes with the
following average speeds:
for 2.0 s
for 2.0 s
for 6.0 s
What is its average speed?
(a) 12m/s (b) 13m/s (c) 40m/s (d) 48m/s
5. Acceleration is:
6. Find the average speed of a bicycle if it completes two round of a circular track
of radius 140m twice in 5min 52 sec.
(a) 10m/s
(b) 5m/s
(c) 2m/s
(d) 4m/s
7. If ‘s’ is displacement and ‘d’ is distance between two points, then the correct relation is
(a) s = d
(b) s > d
(c) d > s
(d) none
8. Which of the following figures represents uniform motion of a moving object correctly?
9. A physical quantity which cannot be negative is
(a) displacement
(b) velocity
(c) acceleration
(d) distance
10. A person moves from point O in a straight line to a point X 50m, and return from X
to point Y in direction XO 20m. What is displacement made?20. A person moves from
point O in a straight line to a point X 50m, and return from X to point Y in direction XO
20m. What is displacement made?
(a) 50m
(b) 80m
(c) 20m
(d) 30m
11.When a body covers unequal distances in equal intervals of time, it is said to be in
(a) linear motion
(b) uniform motion
(c) non-uniform motion
(d) vibratory motion
12. A particle travels with a speed of 18 km/hr, its speed in m/s is
(a) 5 m/s
(b) 50 m/s
(c) 64.8 m/s
(d) 6.48 m/s
13. Which of the following is vector quantity?Which of the following is vector quantity?
(a) Distance
b) Displacement
(c) Velocity
(d) Both (b) and (c)
14. A bus moves from stop ‘A to stop ‘B’ with a speed of 40 km/hr and then from stop ‘B’
to stop ‘A with a speed of 50 km/hr. Its average speed is
(a) 48.5 km/hr
(b) 44 km/hr
(c) 45 km/hr
(d) 44.4 km/hr
15. Area under velocity-time gives
(a) displacement
(b) acceleration
(c) velocity
(d) time
16. Displacement-time graph of a uniformly accelerated motion is
(a) parabola
(b) straight line
(c) an inclined line
(d) none