9th Class Physics Chapter 1 Important MCQs

1. A ball is thrown vertically upwards.Its velocity at the highest point is:

a) -10m/s
b) Zero
c) 10ms-2
d) None of these

2. By Dividing Displacement of a moving body with time,we obtain:

a) Speed
b) Acceleration
c) Velocity
d) Decelaration

3. The speed of cheetah is:

a) 200Kmh-1
b) 70Kmh-1
c) 100Kmh-1
d) 90Kmh-1

4. A change in positions is Called:

a) Speed
b) Velocity
c) Displacement
d) Distance

5. A train is moving a at a speed of 36kmh-1 , its spped expressed in ms-1 is:

a) 10ms-1
b) 20ms-1
c) 25ms-1
d) 30ms-1

6. A car is moving with speed of 20ms-1,Its speed in Km-1 will be:

a) 36ms-1
b) 56ms-1
c) 72ms-1
d) 100ms-1

7. _____is not a vector quantity.

a) Displacement
b) Velocity
c) work
d) Torque

8. Which of the following is a vector quantity:

a) Speed
b) Distance
c) Displacement
d) Power

9. The Acceleration of a body falling down freely is approximetly:

a) 20ms2s-2
b) 10ms-2
c) 10ms-1
d) 10ms2s-1

10. Which of the following is a vector quatity?

a) Speed
b) Distance
c) Displacement
d) Mass

11. The unit of Acceleration is;

a) m
b) ms-2
c) ms-1
d) kgm-1

12. a=____________

a) vf - vf/t
b) vf + vf/t
c) vf x vf/t
d) t/vf - vf

13. The Unit of Acceleration is:

a) kmh-1
b) ms-1
c) kmh-2
d) kms-1

14. Which of the following is a vector quantity?

a) Force
b) Mass
c) Speed
d) Time

15. Negative Acceleration is also called:

a) Displacement
b) Deceleation
c) Retardation
d) Both B and C

16. if an Object is moving with constant speed then its distance-time Graph will be a Straight line:

a) Along time Axis
b) Along Distance Axis
c) Parallel to time Axis
d) Inclinecd to time Axis

17. The Motion of body about an axis is called:

a) Circular Motion
b) Rotatory Motion
c) Vibratory Motion
d) Random Motion

18. Brownain motion is an Example of

a) Translatory Motion
b) Linear Motion
c) Random Motion
d) Vibratory Motion

19. The to and fro motion of a body about its mean positon is called:

a) Circular Motion
b) Rotatory Motion
c) Vibratory Motion
d) Random Motion

20. See-Saw is an Example of

a) Circular Motion
b) Rotatory Motion
c) Vibratory Motion
d) Random Motion

21. The Motion of body in Straight line is

a) Circular Motion
b) Rotatory Motion
c) Linear Motion
d) Random Motion

22. The motion of insects is called:

a) Circular Motion
b) Rotatory Motion
c) Linear Motion
d) Random Motion

---