CBSE - Motion

1 Motion The distance travelled by a body is directly proportional to the time, then the body is said to have -

(1)  Zero speed
(2)  Zero velocity
(3)  Constant speed
(4)  None of these

2 Motion What is the position of the body in the time interval 60-70 seconds?

(1) 15 m
(2) 5 m
(3) 10 m
(4) 20 m

3 Motion In case of a moving body-

(1)  Displacement > Distance
(2)  Displacement < Distance
(3)  Displacement ³ Distance
(4)  Displacement £ Distance

4 Motion A car accelerates uniformly from 18 km/h to 36km/ h in 5 s. The acceleration in ms^–2 is -

(1)  1
(2)  2
(3)  3
(4)  4

5 Motion 

A ball is thrown vertically upwards. Which of the following plot represents the velocity time graph of the ball during its flight, if the air resistance is not ignored ?

6 Motion A man is moving with 36 kmph. The time of reaction is 0.9 seconds. On seeing an obstacle in the path, he applies brakes and decelerates at 5 m/s², the total distance covered before he
stops is:
(1) 19 m
(2) 17 m
(3) 16 m
(4) 18 m

7 Motion The initial velocity of the free falling object is _____________?
(1) More
(2) Less
(3) Zero
(4) 9.8 m/s

8 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

9 Motion Which of the following figures represent uniform motion of a moving object correctly?


ans 1


3. In a distance-time graph, if the line is horizontal, then the object is:
(1) Accelerating
(2) Speeding up
(3) At rest
(4)  Slowing down

10 Motion 40 A body starts falling from height 'h' and travels distance h/2 during the last second of motion. The time of travel (in sec.) is-
(1) √ 2 -1
(2) 2 + √2
(3) √2+ √3
(4) √3 +2