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Physics Vocab Pre-AP
| Term | Definition |
|---|---|
| force | a push or a pull on an object |
| unbalanced force | forces that cause a change in motion |
| balanced force | forces that do not cause a change in motion |
| kinetic energy | the energy of motion or moving objects |
| potential energy | stored energy due to either position/gravity, elasticity, or chemical bonds |
| reference point | the object to which you compare another object to see if it's in motion |
| motion | when the distance between an object and a reference point is changing |
| inertia | tendency of an object to resist a change in motion |
| friction | a force that opposes motion |
| Newton's 1st Law | objects in motion or at rest tend to stay that way unless acted on by an unbalanced force |
| Newton's 2nd Law | the force of an object is equal to its mass times its acceleration |
| Newton's 3rd Law | for every force or action there is an equal and opposite force or reaction |
| speed | distance traveled per unit of time |
| acceleration | a change in velocity of an object (speed up, slow down, change direction) |
| velocity | distance traveled per unit of time, going in a specified direction |
| Centripetal force | a force that makes a body follow a curved path |
| Centrifugal force | a force that pushes a body outward, when it is being spun around |
| Air resistance | a type of friction involving air |
| Rolling friction | friction occurring by a rolling object (wheels) |
| Sliding friction | friction occurring between two solid surfaces |
| Fluid friction | friction between surfaces involving a liquid between them |
| Static friction | friction between surfaces of two objects not moving in relation to each other |
| Gravity | a force that attracts two objects to each other... gravity is increased by an increase in mass or a decrease in distance |
| Normal force | a force that opposes gravity, holding objects upward in opposition to gravity |
| Applied force | a force applied to an object (most likely in order to move it) |
| Thrust | an accelerating force |
| Drag | a decelerating force |
| Tension | a force transmitted through a string, rope, or wire as it is pulled from both sides |
| Buoyant force | the upward force that acts on an object when it is put in a liquid, causing it to float |
| Torque | a force that causes an object to pivot or twist around a focal point |
Created by:
fordi
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