Physics KS3/GCSE: The Secrets of Everything

BBC Teach > Secondary Resources > KS3 Physics / GCSE Physics

in this series of short films, daredevil science geek Greg Foot is prepared to attempt ANYTHING to find you the answers to some of life's weirder questions.

Can you make a star on Earth?
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Can you make a star on Earth?

Greg Foot demonstrates that a star is just like a continuous chemical reaction.

How big is one giant leap on the Moon?
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How big is one giant leap on the Moon?

Greg Foot finds out how high he can jump on Earth compared to on the surface of the Moon.

How can you survive a lightning strike?
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How can you survive a lightning strike?

Just how dangerous is lightning and how can anyone survive a direct lightning strike?

If the whole world jumped at the same time would the planet move?
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If the whole world jumped at the same time would the planet move?

Greg Foot investigates the question on everyone's lips; what if everyone in the world jumped at the same time?

Could I survive an asteroid strike?
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Could I survive an asteroid strike?

Greg Foot investigates what would happen if an asteroid collided with Earth.

Why is the sky blue?
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Why is the sky blue?

Greg Foot discovers why the sky is blue by examining the effect of the atmosphere.

Why can't I run fast?
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Why can't I run fast?

Will humans be able to run faster and continue to break world records?

Why do boomerangs come back?
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Why do boomerangs come back?

Why a boomerang will always return to its thrower when thrown correctly.

Why is fire hot?
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Why is fire hot?

Greg Foot demonstrates how fuel, heat and oxygen are required to produce fire.

Can I escape from quicksand?
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Can I escape from quicksand?

Why quick sand is dangerous and the forces involved that make it difficult to escape from.