How can you tell they’ve got it: Newton's Third Law?

If they’ve got it, you’ll see things like: States Newton's Third Law correctly, identifying both the action and reaction force and the objects they act on; Gives at least two real-world examples (e.g. rocket propulsion, swimmer pushing off a wall); Distinguishes a Newton's Third Law pair from balanced forces on the same object; Explains why a gun recoils when fired using Newton's Third Law. Or just try it together: If your child saw a video of a rocket launching into space, could they explain what force is pushing the rocket upward and where that force comes from — and which law of motion that demonstrates?

Science Forces & Motion Ages 12–13

Newton's Third Law

Your child can explain why a rocket rises. It pushes gas down, and the gas pushes the rocket up with an equal force. Every push has an equal push back.

In curriculum terms

State and apply Newton's Third Law: every force has an equal and opposite reaction force acting on a different object, distinguishing action-reaction pairs from balanced forces

Ages are typical, not deadlines — follow your child’s pace. How to help at home →

How to tell they’ve got it

Tick these off as you see them — no test required.

States Newton's Third Law correctly, identifying both the action and reaction force and the objects they act on
Gives at least two real-world examples (e.g. rocket propulsion, swimmer pushing off a wall)
Distinguishes a Newton's Third Law pair from balanced forces on the same object
Explains why a gun recoils when fired using Newton's Third Law

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Try this together

If your child saw a video of a rocket launching into space, could they explain what force is pushing the rocket upward and where that force comes from — and which law of motion that demonstrates?

Where this sits on the map

Stuck here? Check the skills it builds on first. Confident? Here’s what it unlocks.

Builds on

Newton's First & Second Lawsages 12–13Newton's Third Law is conventionally taught after the first two — students need Newton's 1st and 2nd as reference points to distinguish reaction pairs from balanced forces

Newton's Third Lawthis skill · ages 12–13

Unlocks

Nothing on the map depends on this yet.

solid = must come firstdashed = helps

Curriculum alignment

Where this fits in the official school curriculum — our best automated guess, not yet checked by a person.

This skill sits beyond Year 6 in the Australian Curriculum, so no F–6 code is matched. It also sits beyond the NSW K–6 syllabuses. It also sits beyond Level 6 in the Victorian Curriculum.

Nearby on the map

Deformation & Fluid Pressureages 12–13 Electromagnetsages 12–13 Investigating Forcesages 12–13 Moments, Pressure & Hooke's Lawages 12–14

All Forces & Motion skills →