Force/Motion Vocab. Part 2

Front

Newtons

Back

The unit of measure used when measuring force

Front

Unbalanced force

Back

A force that changes an object’s motion

Front

Balanced force

Back

The forces acting on an object are zero.

Front

Gravity

Back

The force of attraction between objects due to their mass.

Front

Friction

Back

A force that opposes motion between two objects that are in contact with each other.

Front

Air Resistance

Back

The force exerted by air on an object in motion, that opposes its movement. Also known as DRAG, an object’s shape, surface area, and speed slows it down.

Front

Inertia

Back

Tendency of an object to resist a change in motion (ex. Lasso, when your body goes forward when the bus driver brakes)

Front

Newton’s 1st Law

Back

An object in motion will stay in motion and an object at rest will stay at rest unless acted on by a force. Ex. You knock a pen off your desk.

Front

Newton’s 2nd Law

Back

The greater the mass of an object, the greater the force that will be required to create an unbalanced force. Ex. kickball

Front

Newton’s 3rd Law

Back

Every action has an equal and opposite reaction. Ex: You use force to jump up and gravity uses the same amount of force to bring you back down.