Forces and Motion Chapter Review

Front

What are the forces in a collision that act in opposite directions and are equal?

Back

Opposite direction and equal forces.

Front

What is the force that opposes motion between two objects that are touching?

Back

Friction.

Front

What type of force is acting on a book sitting on a shelf?

Back

Balanced Force.

Front

What causes a change to an object's motion?

Back

Unbalanced forces.

Front

In a collision, which object will experience a greater change in velocity?

Back

The less massive object.

Front

What is the definition of balanced forces?

Back

Forces that are equal in size and opposite in direction, resulting in no change in motion.

Front

What is the definition of unbalanced forces?

Back

Forces that are not equal and cause a change in motion.

Front

What is friction?

Back

A force that opposes the relative motion of two surfaces in contact.

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 unbalanced forces act on it?

Back

It accelerates in the direction of the net force.