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