a push or a pull on an object that can cause it to change direction
a force that pulls any two objects toward one another, such as you toward the center of the earth
the tendency of a moving object to stay in motion or a resting object to stay at rest
a force that slows the motion of a moving object
the ability to do work
energy than an object has because of position
energy of motion
the kind of energy an object has because it can move or because it is moving
energy that comes from chemical changes
energy that comes from the flow of electricity
the result of a force moving an object
a machine made of one or two parts
a simple machine with a flat surface and one end higher than the other
wheel and axle
a simple machine made of a wheel attached to a rod
a simple machine that has slanted sides
a simple machine with a fulcrum that changes the direction of the force
a simple machine that uses a rope and a wheel
a simple machine that has an inclined plane wrapped around a rod
a machine made of two or more simple machines
a machine made of many simple and compound machines
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