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Push, Pull and What Makes Things Move

What you’ll find out

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No sign-up and no real names. In the lesson you check your understanding as you read, run the experiment yourself, and practise until it sticks.

A force is a push or a pull

You push a door open and pull a drawer out. Both are forces, because a force is a push or a pull. Kicking a ball is a push. A magnet picking up a pin is a pull.

Nothing changes on its own

A ball sitting on grass stays there — something has to push it. A rolling ball keeps going until something slows it: the grass, a wall, your hand.

Bigger push, bigger change

Tap a ball gently and it moves a little. Kick it hard and it flies. The bigger the push, the bigger the change. How heavy the thing is matters too.

Curriculum links: NGSS K-PS2-1 · NGSS 3-PS2-1