period 7 - Forces Review

Front

What is Newton's Third Law of Motion?

Back

For every action, there is an equal and opposite reaction.

Front

What is an example of an action-reaction pair?

Back

A person jumping off a boat, and the boat moving backward.

Front

What force acts on an object in free fall?

Back

Only gravitational force.

Front

What occurs when two objects rub against each other?

Back

Friction occurs.

Front

What is the Law of Inertia?

Back

An object at rest stays at rest, and an object in motion stays in motion unless acted upon by a net external force.

Front

What is friction?

Back

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

Front

What happens to the forces acting on an object when it is in equilibrium?

Back

The net force acting on the object is zero.

Front

What is gravitational force?

Back

The force of attraction between two masses.

Front

What is air resistance?

Back

A type of friction that acts against the motion of an object moving through air.

Front

What is the difference between mass and weight?

Back

Mass is the amount of matter in an object, while weight is the force of gravity acting on that mass.