Motion and Time - Class 7 Science Workbook

Which of the following is an example of uniform motion?

The SI unit of time is __________.

Define speed. What is its formula?

A body is said to be at rest if it does not change its position with respect to its surroundings over time. Which of the following is true for an object moving with a constant speed?

An instrument used to measure the distance covered by a vehicle is called an __________.

Explain the difference between uniform and non-uniform motion.

If a car travels a distance of 120 km in 3 hours, what is its average speed?

The basic unit of speed is __________.

Why is it important to know about different types of motion?

A simple pendulum completes 20 oscillations in 40 seconds. What is its time period?