Motion and Time...

A century has:

For measuring time in sports events like sprinting, $$mili second   (ms)$$ is a commonly used unit of time. $$1ms=?$$

Which of the following methods of measurement of time is suitable for a race?

How many seconds are there in a week?

Measurement of time can be done with the help of a:

The diagram shows the pattern of the oil dripping on the road, at a constant rate from a moving car.

The time taken by the earth to complete one rotation about is own axis is called

Which of the following is/are unit of time

A car travels first $$60 \ km$$ of a distance in $$1 \ hr$$, next $$70 \ km$$ of the distance in next hour and remaining $$20 \ km$$ distance in final hour. Then, its motion is:

A person has two hourglasses, one of $$30\ seconds$$ and the other of $$1\ minute$$. Which of the following time intervals can he not measure?