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PS3 Learning Set 2
Forces
Term | Definition |
---|---|
Free-body Diagram | Shows only the forces that act on an object. |
Scale | Used to measure weight. |
Balance | Used to measure mass. |
Balanced Forces | Equal forces acting on an object in opposite direction |
Friction | The force that one surface exerts on another when the two surface rub against each other |
Static Friction | Friction that acts an object that are not moving |
Dynamic or Sliding Friction | Friction that occurs when one solid surface slides over another |
Rolling Friction | The resistive force that slows down the motion of a rolling ball or wheel |
Fluid Friction | Friction that occurs as an object moves through a fluid |
Mass | A measure of how much matter is in an object |
Inertia | The tendency of an object to resist a change in motion |