Forces Review

Front

What happens when two forces act in the same direction?

Back

You add the forces together.

Front

What is inertia?

Back

Inertia is the tendency of an object to resist changes in its state of motion.

Front

What will happen to a passenger in a car if the driver stops quickly?

Back

The passenger will move forward pressing against the seatbelt due to inertia.

Front

What is a balanced force?

Back

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

Front

What is Newton's First Law of Motion?

Back

An object at rest tends to stay at rest unless acted upon by an unbalanced force.

Front

What is Newton's Second Law of Motion?

Back

The net force of an object is its mass times its acceleration (F=ma).

Front

What is Newton's Third Law of Motion?

Back

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

Front

What is the direction of motion if a force is applied to the left?

Back

The object will move to the left.

Front

What is friction?

Back

Friction is a force that opposes the motion of an object.

Front

What is the effect of gravity on objects?

Back

Gravity pulls objects toward the center of the Earth.