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GED Physics Vocab
Vocab, Missouri GED On-Line, Science: Physics
| Term | Meaning |
|---|---|
| acceleration | any change in an object's speed or direction of motion |
| amplitude | in a wave, the distance between its crest (high point) and its midpoint |
| circuit | a complete path along which electric current flows |
| diffraction | the spreading of a wave after the wave passes through a gap in a barrier |
| electricity | a flow of charged particles, usually electrins |
| electromagnetic radiation | a wave of motion of electric and magnetic fields; for example, visible light, radio waves, and X rays |
| energy | the ability to do work; see work |
| force | the pushes and pulls that act on matter; for example, gravity |
| frequency | the number of waves that pass a given point in a given time |
| heat | a form of energy that is transfered from one object to another when there is a difference in temperature |
| inertia | the tendency of an object at rest to remain at rest and the tendency of an object in motion to remain in motion unless acted upon by force |
| kinetic energy | the energy of an object in motion |
| machine | a device that changes the amount of force used to do a given amount of work, usually by increasing the distance invoved |
| magnetism | force that results from the movement of electric charges |
| mass | the amount of matter an object contains |
| fission | process of splitting the nucleus of an atom into two smaller nuclei |
| potential energy | the energy of an object at rest |
| reflection | the bouncing of a wave off a surface |
| refraction | the bending of a wave when it passes from one substance to another |
| wave | a disturbance or displacement that repeats itself |
| wavelength | the distance between two consecutive waves |
| work | in physics, work is done when an object on which a force is acting moves in the direction of that force |
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