What is the difference between the periodic motion and the oscillatory motion ?

Explanation

To differentiate between periodic motion and oscillatory motion, we can break down the definitions and characteristics of each type of motion step by step.

### Step 1: Define Oscillatory Motion
- **Definition**: Oscillatory motion is defined as the motion in which an object moves to and fro about a mean position in a fixed interval of time.
- **Characteristics**:
- The movement is repetitive.
- The object oscillates around a central point (mean position).
- Example: A pendulum swinging back and forth.
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