Unit 3 Test Review

Front

What type of force is friction?

Back

Friction is a force that opposes the motion of an object when it comes into contact with another surface.

Front

What does it mean for forces to be balanced?

Back

Balanced forces are equal in size and opposite in direction, resulting in no change in motion.

Front

What type of force is gravitational force?

Back

Gravitational force is the attraction between two objects due to their mass.

Front

How do you calculate net force when forces are opposite?

Back

You subtract the smaller force from the larger force.

Front

Why does a person move when pushing against a wall?

Back

The wall has more mass, so it resists movement more than the person.

Front

What is an example of a contact force?

Back

Friction is an example of a contact force.

Front

What is an example of a non-contact force?

Back

Gravitational force is an example of a non-contact force.

Front

What happens to an object at rest when balanced forces act on it?

Back

It remains at rest.

Front

What happens to an object in motion when balanced forces act on it?

Back

It continues to move at a constant speed in a straight line.

Front

What is the formula for calculating net force?

Back

Net force = Total forces acting in one direction - Total forces acting in the opposite direction.