A measure of the amount of matter in an object.

The force of gravity between earth and an object.

The force of attraction between any two objects due to their mass.

The part of a lever that applies force to the load the machine acts against.

The part of a lever that applies force to the resistance arm.

The pivot point of a lever.

A simple machine made of a rigid bar and a fixed pivot point.

A machine with few moving parts making it easier to do work.

The use of force to move an object a certain distance.

The force with which an object resonds to an action.

The force one object applies to a second.

Forces that do NOT cancel each other out.

Forces that cancel each other out.

Change in velocity with respect to time.

The speed and direction of a moving object.

How fast an object's position changes with time at any given moment.

A force that opposes the motion of one object moving past another.

The tendency of an object to keep moving in a straight line or of any object to resist a change in motion.

A push or pull exerted on one object by another, causing a change in motion.