Question

Name the type or types of motion in the following:

The motion of the Earth about its axis

Answer 1

The motion of the Earth:

1. The Earth rotates on its axis so it is an example of rotational motion.
2. The Earth revolves around the Sun so it is also an example of planetary motion
3. The Earth completes its rotation in 24 hours so it is also an example of periodic motion and elliptical motion.
4. The Earth completes its revolution around the Sun every 365 days and 6 hours so it is also an example of periodic motion.
5. As the motion of the Earth is an example of two or more motions so it is also an example of multiple motions.
6. As the speed of the earth is not constant every time so it is also an example of non-uniform motion.

Hence, the motion of the Earth is an example of multiple motions which includes rotational motion, planetary motion, planetary motion, elliptical motion, non-uniform motion, and periodic motion.