Question

Motion of the earth around the sun is _____

• A. periodic
• B. non - periodic
• C. oscillatory
• D. linear

Answer 1

The correct option is A periodic

Oscillatory motion takes place when the restoring force acting on the body is directly proportional to its displacement from its equilibrium position. In practice, oscillatory motion eventually comes to rest due to damping or frictional forces.

Periodic motion, motion repeated in equal intervals of time. Periodic motion is performed.

Linear motion is motion in straight motion.

So earth repeats its path after some constant time period and not moving in straight line. Also force acting is not directly proportional to displacement for mean position. So the motion is periodic motion.