Question

2
Answer the following questions in one word or a sentence.
Name line graph used to represent the motion of an object.
Which instrument for the measurement of time is also known as the hourglass?
3. Define a pendulum.
Which gives more accurate time-a pendulum clock or a quartz clock?
5. Define uniform speed.
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Answer 1

Answer:

1. straight line.

2. sandglass

3. a way of describing a situation that changes from things to it's opposite.

4. quartz clock use periodic motion of simple pendulum for the measurement of time........ quartz clock contain as electric circuit and are more accurate then pendulum clock.

5. a body is said to be moving with uniform speed, if it covers equal distances in equal intervals of time.

hope it's help you