| A | B |
|---|
| force | any push or pull that causes an object to move, stop, or change direction or speed |
| acceleration | how fast an object is moving |
| inertia | the property of matter by which it retains its state of rest or its velocity along a straight line so long as it is not acted upon by an external force. |
| gravity | attraction of the earth's mass, and the force keeping us on earth |
| potential energy | energy due to position, "stored energy" |
| kinetic energy | energy that is moving, "energy of motion" |
| work | application of force to move an object |
| mass | amount of matter present |
| friction | resistance to motion created by two objects moving against each other |
