| A | B |
|---|
| Acceleration | the rate at which the velocity/speed changes. |
| Weight | a force that comes from gravity pulling down on any object with mass. |
| Pound | the English unit of force. |
| Newton | the metric unit of force. |
| Tension | a pulling force that acts in a rope, string or other object. |
| Compression | a squeezing force that can act on a spring. |
| Friction | a force that resists motion. |
| Net Force | the sum of all forces acting on an object. |
| Balanced Force | combined forces that result in a zero net force on an object. |
| Force | Pushes or Pulls. |
| Inertia | Property of objects that resists changes in motion. |
| Independent Variable | The experimental variable that a scientist changes, moves or manipulates. |
| Dependent Variable | the outcome of moving the independent variable. |
| Control Group | the part of an experiment that must always stay the same. |
| Newton's First Law of Motion | Objects at rest stay at rest, objects in motion stay in motion unless acted on by an unbalanced force. |
| Newton's 2nd Law of Motion | A=m/f acceleration is force divided by mass. |
| Newton's 3rd Law of Motion | For every action force, there is a reaction force equal in strength and opposite in direction. |
