Force Review

Front

What causes two like poles of magnets to repel each other?

Back

The magnets have poles that repel when two like poles face each other.

Tags

NGSS.MS-PS2-3

NGSS.MS-PS2-5

Front

What is the force that pulls objects toward the Earth?

Back

Gravity.

Tags

NGSS.MS-PS2-4

Front

True or False: Without friction, an object in motion would never stop.

Back

True.

Front

What is the force that acts between surfaces?

Back

Friction.

Front

What is the ability to attract certain metals called?

Back

Magnetism.

Front

What are the two types of forces based on contact?

Back

Contact forces and non-contact forces.

Tags

NGSS.MS-PS2-5

Front

What is an example of a non-contact force?

Back

Gravity.

Tags

NGSS.MS-PS2-4

NGSS.MS-PS2-5

Front

What is the relationship between mass and gravitational force?

Back

The gravitational force increases with mass.

Tags

NGSS.MS-PS2-4

Front

What is the effect of friction on motion?

Back

Friction opposes motion and can cause an object to stop.

Front

What happens to the motion of an object in space without friction?

Back

It would continue moving indefinitely in a straight line.