# Class 9 Motion MCQ Quiz Set 1

## Motion Quiz – 1

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

2. From the given v-t graph, it can be inferred that the object is 3. Suppose a boy is enjoying a ride on a marry-go-round which is moving with a constant speed of 10 m/s. It implies that the boy is:

4. Which of the following can sometimes be ‘zero’ for a moving body?

i. Average velocity

ii. Distance travelled

iii. Average speed

iv. Displacement

5. A boy goes from A to B with a velocity of 20 m/min and comes back from B to A with a velocity of 30 m/min. The average speed of the boy during the whole journey is

6. The SI unit of the quantity obtained by determining the slope of velocity-time graph is

7. The ratio of speed and magnitude of velocity of a moving body is

8. Which of the following situations is possible?

9. A car of mass 1000 kg is moving with a velocity of 10 m/s. If the velocity-time graph for this car is a horizontal line parallel to the time axis, then the velocity of the car at the end of 25 s will be:

10. A car is travelling at a speed of 90 km/h. Brakes are applied so as to produce a uniform acceleration of – 0.5 m/s2. Find how far the car will go before it is brought to rest?

11. In a free fall the velocity of a stone is increasing equally in equal intervals of time under the effect of gravitational force of the earth. Then what can you say about the motion of this stone? Whether the stone is having:

12. The numerical ratio of displacement to distance for a moving object is:

13. On a graph showing distance versus time, a horizontal line represents an object that is

14. A place or object used for comparison to determine if something is in motion is called