The ability to do work.

The tendency of an object at rest to stay at rest and an object in motion to stay in motion.

A force that slows objects down.

A measure of how much an object contains for the space it takes up

The amount of space an object occupies.

A measure of how much gravity is pulling down on an object

The force of the Earth's pull on an object

The changing part of an experiment.

a force caused by air rubbing on an object

A push or a pull, measured in Newtons or pounds

A scientific test in which there is only one variable

What was wrong with Aristotle's theory?

Another name for Newton's First Law of Motion is the Law of Inertia.

The more mass an object has, the less inertia it has.

Speed and direction an object is traveling

The amount of inertia an object has depends on the size and shape of the object and the _____________________.