Question

3. Give two examples of periodic events.
4. Fill in the blanks :
1. S.I. unit of time is Hertz
2. The DOD of the pendulum is made up of a non-magnetic m
3. The time period of a simple pendulum depends on the
of the string
4. In a mechanical wrist-watch, a
_makes the oscillations.
tch
5. Quartz clocks are powered by
cells.
6. Stopwat wat
watches are used to measure time in sports events.
7. For measuring short intervals of time, 48aphicdwatches 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​

Answer 1

Answer:

Answer is already given

Explanation:

Answer 2

Answer:

answers is already given

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