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Physics

Motion, energy, light and the rules the universe obeys.

Core concepts

Newton's second law

Force equals mass times acceleration. Push twice as hard, accelerate twice as fast.

Conservation of energy

Energy is never created or destroyed, only moved between forms like heat, motion and light.

Waves

Wavelength × frequency = speed. It explains sound, radio, light and colour.

Key formulas

Try an experiment

45 min

Egg drop challenge

Survival depends on extending impact time, reducing peak force: F = Δp / Δt.

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