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21 Cards in this Set
- Front
- Back
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visible spectrum
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light energy that can be seen and can be broken into the colors of the rainbow
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wavelength
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distance from a point on a wave to the same point on the next wave
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transparent
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allows light to pass through so that whatever is behind can be seen
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translucent
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allows light to pass through but scatters it so that whatever is behind it cannot be clearly seen
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opaque
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does not allow light to pass through
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transmit
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to allow to pass through
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absorb
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to take in
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reflect
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to bounce back
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convex lens
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lens that is thicker in the middle than at the edges
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concave lens
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lens that is thinner in the middle than at the edges
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vibrate
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to move quickly back and forth
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volume
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loudness or softness of a sound
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pitch
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highness or lowness of a sound
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stethoscope
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instrument used to hear the sounds of body organs
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microphone
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instrument used to amplify voices, music, and other sounds
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electric signal
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form of energy
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amplify
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to make stronger
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bullhorn
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instrument with a built-in microphone that makes sound louder
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hearing aid
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instrument used to help people with a hearing problem hear better
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eardrum
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thin skin inside the ear that vibrates when sound hits it
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nerve
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nerve in the ear that carries the message to the brain
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