Fill in the following blanks with suitable words :
Ball bearings reduce friction because they……………………….rather than slide.

Explanation

To fill in the blank in the statement "Ball bearings reduce friction because they __________ rather than slide," we need to understand the function of ball bearings in reducing friction.

### Step-by-Step Solution:

1. **Understanding Friction Types**:
- There are different types of friction: static friction, sliding (kinetic) friction, and rolling friction.
- Ball bearings are designed to minimize friction.

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