Question

Write the difference between revolutionary motion and rotatory motion. Give one example for each.

Answer 1

1. Revolutionary motion is motion in which the whole body is revolving on a circular path about a point which is at center of path.

Examples: Earth revolving around sun, an Electron around nucleus.

2. Rotational motion is spinning motion of body about an axis. In this motion, all points on body are in circular motion except point through which axis passes.

Examples: Spinning top, rotation of Earth,