* Friction: A rough surface creates more friction. Friction is a force that opposes motion between two surfaces in contact. The rougher the surface, the more points of contact there are, and the greater the friction.

* Overcoming Friction: To move an object across a rough surface, you need to apply enough force to overcome the friction. This means you need to apply more force than you would on a smooth surface.

Think of it this way:

* Imagine pushing a heavy box across a smooth, polished floor. It might slide relatively easily.

* Now imagine pushing the same box across a carpet. The carpet's texture creates more friction, making it much harder to move the box.

Let me know if you'd like more details about friction!