Question

A. VERY SHORT ANSWER TYPE QUESTIONS
1. What is meant by speed of an object ?
2. What kind of motion does a simple pendulum execute ?
3. What kind of events were used by ancient people to know the time?
4. What is the standard unit of time?
5. What does a straight line graph indicate ?​

Answer 1

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1.  Speed can be defined as the rate of distance covered per unit of time by an object.

2. A simple pendulum executes oscillatory motion.

3. Ancient people were knowing time by instruments such as the sun clock, sundials, waterclock, sand clock, and pendulum.

4. The standard unit of time is (sec).

5.  A straight line graph indicates that something is having a constant rate.

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