Every time you make something move, you push it or pull it. Some things need both! Look at the action and tap Push or Pull.
Roll a ball down the ramp! On a smooth surface (ice) there is less friction, so the ball rolls further. On a rough surface (carpet) friction grabs the ball and it stops sooner. A steeper ramp makes it go faster.
1. Why does a rolling ball eventually stop? Friction between the ball and the ground slows it down until it stops.
2. Is opening a drawer a push or a pull? You pull it open, and push it to close β both forces!
3. Why do shoes have grippy soles? More friction means less slipping, so you don't slide over.
4. Which rolls further β on ice or grass β and why? On ice β it is smooth, so there is less friction to slow the ball.
Every push and pull is a force β it can start, stop or turn things. Friction is a force that happens when surfaces rub together, and it slows sliding things down. Smooth = less friction; rough = more.