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Motion vocabulary
| Term | Definition |
|---|---|
| the state in which one object's distance from another object is changing | Motion |
| The force that pulls objects toward each other; factors include the objects' masses and distance apart | Gravity |
| the SI unit for force; lifting a lemon requires about 1 newton of force | Newton |
| the SI measure for how much matter is in an object | Mass |
| the stored energy that results from the position, condition, or shape of an object | Potential Energy |
| the energy that an object has due to its motion | Kinetic energy |
| speed in a given direction | Velocity |
| the rate at which velocity changes; increasing speed, decreasing speed, or changing direction | Acceleration |
| the distance an object travels per unit of time | Speed |
| An object's change in position | Displacement |
| Forces are equal in size and opposite in direction. When forces are balanced, there is no change in motion. | Balanced Force |
| Force that changes the motion of an object | Unabalanced Force |