Force and Motion

What is the main difference between gravity and magnetism?

• Gravity only pulls objects together, while magnetism can push or pull.

• Gravity can push and pull, while magnetism only pulls.

• Gravity is a force of repulsion, while magnetism is a force of attraction.

• Gravity and magnetism are the same forces.

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What happens to the strength of gravity as the distance between two objects increases?

• It disappears completely.

• It becomes stronger.

• It becomes weaker.

• It stays the same.

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

• Because the moon has a larger mass than Earth.

• Because the moon has a smaller mass than Earth.

• Because the moon has no gravity.

• Because the moon is closer to the sun.

What happens to a ball's speed when it is thrown up in the air?

• It slows down as it goes up.

• It disappears.

• It stays the same speed.

• It speeds up as it goes up.

What force slows down a rolling ball on flat ground?

• Inertia

• Friction

• Magnetism

• Gravity