| A | B |
| force | a push or pull that causes an object to move, stop, or change direction |
| friction | a force that slows or stops motion when objects rub together |
| position | where an object is located in space |
| inertia | the property of an object that resists a change in its state of motion |
| weight | a measure of the force of gravity on an object, measured with a spring scale |
| movement | a change in position or location |
| potential energy | energy that is stored |
| direction | the line or course along with something is moving |
| kinetic energy | energy in motion |
| gravity | the force that pulls objects towards the center of the Earth |