Question

v. Fill in the blanks :
1. S.I. unit of time is
2 The of the pendulum is made up of a non-magnetic material.
3. The time period of a simple pendulum depends on the of the string
4. In a mechanical wrist-watch, a makes the oscillations.
5. Quartz clocks are powered by cells
. 6. watches are used to measure time in sports events.
7. For measuring short intervals of time, watches are used.
8. If the distance-time graph of a body is a straight line, then its speed is
9. If the distance-time graph is a curved line, then its speed is
10. The shadow cast by a sundial is in the morning and at noon.​

Answer 1

Explanation:

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