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Matter and Motion
definition | term |
---|---|
The speed and direction of movement | Velocity |
An objects change in position relative to a reference point | Motion |
The rate at which velocity changes over time; an object accelerates if its speed, direction, or both change | Acceleration |
A push or a pull exerted on an object in order to change the motion of the object; force has size and direction | Force |
The SI unit for force | Newton |
The combination of all of the forces acting on an object | Net Force |
A force that opposes motion between two surfaces that are in contact | Friction |
A force of attraction between objects that is due to their masses | Gravity |
A measure of the gravitational force exerted on an object; its value can change with the location of the object in the universe | Weight |
A measure of the amount of matter in an object | Mass |
The tendency of an object to resist a change in motion unless an outside force acts on the object | Inertia |
The distance traveled in a given amount of time. | Speed |