Contact and Non-Contact Forces

What is a characteristic of contact forces?

• They act over long distances without touching.

• They require direct physical interaction between objects.

• They are always invisible.

• They only involve pulling actions.

Which of the following is an example of a contact force?

• The force of gravity pulling an apple down.

• A magnet attracting a metal object.

• Friction between a sliding puck and ice.

• The force that keeps planets in orbit.

How do non-contact forces exert influence on objects?

• Through direct physical touch.

• By requiring an intermediary object to transmit the force.

• Through an invisible force field or field of influence.

• Only when objects are stationary.

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Which of these forces is considered a non-contact force?

• Pushing a box across the floor.

• Kicking a soccer ball.

• The force of magnetism between two magnets.

• Pulling a wagon with a rope.