A push or pull upon an object.

An object at rest stays at rest

Even when a car stops suddenly, the passengers still fly forward or are held back by seatbelts.

A change in position of an object.

Every action has an equal and opposite reaction.

A ball will stay sitting in a parking lot until a child kicks it.

Is calculated by dividing distance / time.

Force=mass multiplied by acceleration

At a go-cart course, the cars bounce back after running into each other.

How an object gradually speeds up or slows down.

The Law of Inertia

A heavier football player releases more force to run at the same speed as a lighter football player.

The scientist who named gravity.

A heavier box takes more force to push.

Pushing a chair takes less force than pushing a heavy couch.