science ch.11

is a push or pull

The combination of all the forces acting on an object

Two or more forces exerting on an object

If the net force is not zero, the forces are

how an object moves when the net force acting on it is zero.

the force that brings nearly everything to a stop

the acceleration of an object equals the net force divided by the mass and is In the direction of the net force

the size of the gravitational force exerted on an object.

the point in an object that moves as if all the objects mass were concentrated at that point.

forces always act in equal bur opposite pairs.