How does the nature of the surface affect the magnitude of friction?

Explanation

**Step-by-Step Solution:**

1. **Understanding Friction**: Friction is a force that opposes the motion of an object when it is in contact with another surface. The magnitude of friction depends on two main factors: the normal force acting between the surfaces and the nature of the surfaces in contact.

2. **Defining Nature of the Surface**: The "nature" of the surface refers to its texture, specifically how rough or smooth it is. This characteristic plays a crucial role in determining the amount of friction that will be generated.

3. **Effect of Surface Roughness**:
- **Rough Surfaces**: When two rough surfaces come into contact, the irregularities and roughness create more points of contact. This increases the frictional force because the surfaces tend to grip each other more effectively. Therefore, the magnitude of friction is higher on rough surfaces.
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