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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 |