Forces and Newton's Laws

The rate at which an object's velocity changes.

A contact force that opposes the motion of an object through air.

A force exerted directly by a person or another object.

Forces that are equal in magnitude and opposite in direction, producing zero net force.

A force that acts only when two objects are touching.

A state in which an object moves with constant velocity because the net force acting on it is zero.

A non-contact force between electrically charged objects.

A state in which the net force acting on an object is zero.

A push or pull that can change an object's motion.

A simplified diagram showing all the external forces acting on a single object.