Question

Difference between oscillation and periodic motion

Answer 1

Answer:

Any motion that repeats itself at regular interval of time is called periodic motion.

 Examples: Motion of the pendulum of a clock, motion of planets around the Sun, etc.

A to and fro or back and forth motion of a body along the same path, without any change in shape of the body, is called an oscillatory motion.

Examples: Motion of a swing or pendulum, motion of the needle of a sewing machine moving up and down, etc.

All oscillatory motions are periodic but  all periodic motions are NOT oscillatory.

For example, motion of a planet around the Sun is periodic but not oscillatory.

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