A student places two magnets near each other, and they immediately jump apart without being touched. What did the magnetic force do?

It pulled the two magnets so they stuck together.

It caused the magnets to lose their magnetic force.

It only worked on one of the magnets.

Which of the following actions is an example of a contact force, NOT a non-contact force?

A magnet holding a pin to a refrigerator.

Two magnets pushing each other away.

A paperclip being pulled toward a magnet.

Pulling the paper to the cabinet.

Making the paper heavier so it sticks.

Turning the filing cabinet into a magnet.