Question

1 Fill in the blanks
1. The S.I unit of speed is
2. The resting position of a bob of pendulum is called
position.
3. When a body does not change its position with respect to its surrounding it is
said to be at
4. Speed of a motor vehicle is measured by an instrument called
5. Distance travelled by a vehicle is measured by an instrument.
called
6. Time taken by a pendulum to complete one oscillation is called
7. The metallic ball used in the pendulum is called
8. A diagram showing relationship between two variable a quantity each
measured along one of a pair of axes is called
9. A substance whose crystals can vibrate very fast and a very precise rate is
called
10.An instrument showing the time by the shadow of a pointer cast by the sun on
to a graduated plate is called
​

Answer 1

SI unit of speed is diopter

Answer 2

Answer:

1) metre per second

2) mean position.

3) stationary

4) Speedometer

5) odometer

6) Time period

7) bob

8) plot.

9) quartz crystal

10) Sundial

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