Electricity, Magnetism, and Gravitational Force Review

Electricity is created by

• the movement of protons.

• the movement of neutrons.

• the movement of waves.

• the movement of electrons.

Gravitational force depends on

• mass and distance.

• weight and distance.

• acceleration and distance.

• acceleration and mass.

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What makes a material magnetic?

• The movement of protons in the atom.

• The electrons spin in a specific direction.

• The N and S poles of Earth.

When you cut a magnet in half,

• The magnet will retain the same N and S poles.

• The magnet will have a N and S pole on each half.

• The magnet will no longer be magnetic.

• The magnet will become stronger.

Gravitataional force increases when

• mass decreases.

• distance increases.

• mass remains constant.

• distance decreases.

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Gravitataional force increases when

• mass decreases.

• distance increases.

• mass remains constant.

• mass increases.

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What planet would you weigh the most on?

• Mercury

• Earth

• Jupiter

• Neptune

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Why would you weigh less on the moon than on Earth?

• Earth is much larger than the moon.

• The moon is much larger than Earth.

• You would weigh less on the Earth, not the moon.

• Earth is closer to the sun.

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What are the ways to demagnetize a magnet?

• Drop the magnet.

• Strike the magnet really hard.

• Soak the magnet in water.

• Increase the temperature of the magnet.

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What material is the best insulator?

• rubber

• water

• gold

• copper

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