This lesson introduces pupils to gravity as a non‑contact force, helping them understand how it acts at a distance and why it is essential for life on Earth. Pupils learn the difference between mass and weight, use the weight formula to calculate gravitational force, and explore why weight changes on different planets while mass stays the same.
Clear modelling, diagrams, and scaffolded calculations make this lesson accessible for Year 7 learners. Real‑world examples (astronauts, planets, space travel) help pupils connect scientific ideas to exciting contexts.
What Students Will Learn
What gravity is and why it is a non‑contact force
The difference between mass (kg) and weight (N)
How to calculate weight using the formula
𝑊=𝑚𝑔
Why weight changes on other planets but mass does not
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