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| a repeating disturbance, vibration, or movement that transmits (transfers or moves) energy from place to place |
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| a material through which waves can travel |
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| waves that travel through matter – require a medium to vibrate in order for energy to be transferred; e.g. sound waves, water waves |
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| waves that do not require a medium to exist – can travel through matter or empty space where matter is not present; e.g. light, radio waves |
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| mechanical waves in which the particles of matter in the medium vibrate by pushing together (compression) and moving apart (rarefaction); e.g. sound waves, some seismic waves |
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| mechanical waves in which the particles of matter in the medium vibrate by moving back and forth at right angles to the direction the waves travel; e.g. waves on a rope, strings on a musical instrument, some seismic waves, electromagnetic waves |
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| the highest point of a transverse wave |
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| the lowest point of a transverse wave |
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| a property of a wave that is the distance between one point on a wave and the nearest point just like it on the very next wave |
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| a property of a wave that is a measure of the number of full wavelengths that pass a point in a certain amount of time |
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| a property of a wave that is a measure of the greatest distance that vibrations in a wave move from their normal position as the wave passes |
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| a property of a wave that is a measure of the distance per time that a given wave travels; a particular type of wave has a wave speed that is constant in a specific medium or in space |
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| a wave behavior that is the bending of waves due to a change in speed as the wave moves from one medium to another |
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| a triangular-shaped piece of glass that refracts/separates light into its various frequencies / colors |
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| a wave behavior that is the bouncing back of waves upon reaching another surface or boundary that does not absorb the wave’s energy |
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| a wave behavior that is the process of allowing the wave to pass through a given point or medium |
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| objects that scatter light and let some light pass through; can see through the object, but not clearly |
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| a material through which light is transmitted / passes through easily |
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| a material that does not allow light waves to be transmitted through them;objects that block all light, don’t let any light pass through |
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| a wave behavior that means to take in so that the wave energy is not transferred through the medium |
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| a form of energy that moves as electromagnetic waves |
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| interpreting of sound waves, transmitted through the parts of the ear (outer ear, eardrum, middle ear, inner ear), by the brain |
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| interpreting of light wave images, transmitted through parts of the eye cornea, lens, retina, optic nerve), by the brain |
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| different frequencies of light that are part of the visible light spectrum; the color perceived by the observer is the frequency reflected by a material, other frequencies were absorbed by the material |
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| a material that allows only certain colors of light to pass/transmit through them and absorbs or reflects all other colors |
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| the entire range of electromagnetic waves arranged in order of their frequencies or wavelengths |
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| the range of electromagnetic waves in the frequency region just below red on the visible light spectrum; when absorbed objects become warmer |
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| the range of electromagnetic waves that can be detected by the human eye including colors |
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| the range of electromagnetic waves in the frequency region just above violet on the visible light spectrum |
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| the semicircular canals and cochlea, which form the organs of balance and hearing |
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| the air-filled central cavity of the ear, behind the eardrum; sends vibrations to the inner ear |
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| captures sound waves and sends them through the ear canal, which transfers the sound waves to the ear drum |
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| Light waves that have been emitted or reflected by an object, enter the eye and first pass through the transparent layer called the cornea where they are refracted. The cornea also protects the eye from injury |
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| refracts light again after it passes through the cornea; focuses light onto the retina |
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| sends signals to the brain |
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| located in the retina – allow us to see black and white. |
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| located in the retina – allow us to see color |
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| opening (hole) in the middle of the eye |
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| ring of colored muscles that control how much light enters the pupil |
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