| Acceleration |
When the velocity of an object changes |
| Action force |
A force that pairs up with reaction force |
| Force |
Any influence that tends to accelerate an object |
| Interaction |
mutual action between objects where each object exerts and equal and opposite force |
| Law |
Any written or positive rule or collection of rules prescribed under the authority of a state or nation |
| Newton's 3rd Law |
For every action there is an equal and opposite reaction |
| Mass |
Amount of matter in an object |
| Motion |
A constant change in the location of a body |
| Reaction force |
A force that goes with action force |
| Velocity |
Speed together with direction of motion |
| Weight |
A measure of the gravitational force acting on an object |