1. The time period of a simple pendulum is the time taken by it to travel from(a) A to B and back to A(b) O to A, A to B and B to A(c) B to A, A to B and B to O(d) A to B

2. Nearly all the clocks make use of(a) straight line motion(b) periodic motion(c) random motion(d) circular motion

3. A simple pendulum takes 42 sec. to complete 20 oscillations. What is its time period?(a) 2.1 s(b) 4.2 s(c) 21 s(d) 8.40 s

4. Which of the following cannot be used for measurement of time?(a) A leaking tap(b) Simple pendulum(c) Shadow of an object during the day(d) Blinking of eyes

5. The correct symbol to represent the speed of an object is:(a) 5 m/s(b) 5 mp(c) 5 m/s-1(d) 5 s/m

6. The distance covered by an object in a ………………… is called its speed.

7. Time between one sunrise and the next sunrise is called a …………………

8. In a simple pendulum, the metallic ball suspended by thread is called its …………………

9. 4 kilometres are equal to

10. An example of rectilinear motion is