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E+M Warmups

Physics is not a discipline, but a way of looking at the world. See if you can use your sense of the world to explain everyday phenomena.

Electricity can turn you off

         

Why do the girl's hair stand on their end when she touches the Van de Graaff generator?

What should you do to remain safe during a thunderstorm?

Why do microwave ovens have a metallic net in the door?

The persons standing inside the metal cage are not affected by the electric current.

Why is it safe to stand inside the cage?

Many buildings have rods attached at the top, called lightning rods. During a thunderstorm, lightning only hits the lightning rod and the rest of the building remains safe.

What property of the lightning rod helps it attract lightning?

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