Answer the following questions in short :
1. Explain with an example why measurement of time is important and necessary?
2. Name three methods of finding time used earlier before the invention of clock.
3. What were the drawbacks of a mechanical clock?
4. What is the speed of an object covering 15 km in 20 minutes?
5. What do you understand by the uniform motion?
Answers
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Answer:
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Explanation:
1. Measurement of time is important because
- It helps us to be punctual
- It will make any work easier.
2. Sundial clock.
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