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how high or low the sound seems |
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all sound waves begin with a |
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Sound waves are mechanical waves that require a__________________ to travel |
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travel in the same direction as the vibration |
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sounds waves with a low frequnecy have a |
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sound waves travel fastest in solids and slowest in |
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loudness can be measured by a unit |
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a term used to describe your awareness of the energy of sound |
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the amount of energy a sound wave carries per second |
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sound waves with high frequency have a |
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a _______________ object reflect all light |
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Wight light is a mixture of all the colors in the |
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When white light shines on an object the colors are reelected and/or |
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what are the seven types of waves found on the electromagnetic spectrum? |
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radio waves, microwaves, infrared, optical, ultraviolet, X-rays, and gamma-rays. |
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What are the 3 types of mirrors |
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plain, concave, and convex |
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Which type of mirror curves inward and reflects the image upside down |
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When looking into a mirror what is the focal point? |
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location at which rays parallel to the optical axis reflect and meet |
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The change in frequency of the sound wave in relation to an observer is |
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made up of vibration electric and magnetic fields that can move through space at the speed of light. |
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have shorter wavelengths and high frequencies than radio waves |
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electromagnetic waves with wavelengths short than those of microwaves |
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wave have shorter wavelength and hight frequencies than infrared rays |
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have a higher frequency than visible light and have more energy. |
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have wavelengths shorter then ultraviolet rays |
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shortest wavelengths and highest frequencies |
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you can see through such as a window or plastic wrap |
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you can see through but it will be blurry |
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