CBSE - Motion

1 Motion The displacement-time graph for a body is given below. State whether the velocity and acceleration of the body in the region DE are positive , negative or Zero.

(1) V= +v e but a=0
(2) V = -ve and a = -ve
(3) V = + ve and a = + ve
(4) V = +ve and a = -ve

2 Motion 
Which motion does the graph of distance and time shows for accelerated motion?
(1) Non-uniformly accelerated
(2) Constant accelerated
(3) Uniformly accelerated
(4) Uniformly retarded motion

3 Motion In a given velocity-time graph, what happens to velocity between C and D?

(1) Velocity is infinite
(2) Velocity is decreasing
(3) Velocity is increasing
(4) Velocity is constant

4 Motion On the distance-time graph, the Y-axis should be labelled as:
(1) Distance
(2) Displacement
(3) Speed
(4) Time

5 Motion In which of the following graphs are both runners moving at the same speed?

(1) Graph-C
(2) Graph-A
(3) Graph-D
(4) Graph-B

6 Motion A body is moving along a straight line at 20 ms^–1 undergoes an acceleration of 4 ms After 2 s, its speed will be-

(1)  8 ms^–1
(2)  12 ms^–1
(3)  16 ms^–1
(4)  28 ms^–1

7 Motion The speed-time graph for a particle moving at constant speed is a straight-line ________ to the time axis.

(1) perpendicular
(2) parallel
(3) inclined
(4) aligned

8 Motion  If the speed-time graph is a straight line parallel to the time axis, then the body is
(1) accelerated motion
(2) in uniform motion
(3) non-uniform acce le rate d motion
(4) at rest

9 Motion The distance-time graph below shows that an object is moving with:

(1) Uniform acceleration
(2) Non-uniform speed
(3) Uniform speed
(4) Zero speed, that is at rest

10 Motion Distance-time graph of two objects A and B are shown below.

(1) Which statement is true for the speed of object A and B ?
(2) Speed of object A is greater than object B
Speed of object A is smaller than object B
(3) Both have same speed
(4) Speed of Object A is double the speed of object B.