← Summer Camp
πŸ›
Week 2 Β· Day 13 Β· Science

Forces: Push & Pull

A force is a push or a pull. Forces make things start moving, stop, or change direction β€” and friction is the force that slows sliding things down.
Scene 1

Push or pull? πŸ’ͺ

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.

πŸ‘‰ Push
πŸ‘ˆ Pull
Scene 2

Ramp & friction 🎒

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.

Ramp height
Try the same height on ice and on carpet β€” which lets the ball travel further?
Scene 3 Β· Practice

Show what you know 🎯

⭐ Level Up

Brain stretch

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.

The Big Idea

Pushes, pulls and friction 🧲

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.