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Science 2nd monthly

light and sound vocabulary for science test

QuestionAnswer
Light A form of energy
Wavelength The distance from the top of one wave to the top of the next wave
Visible light Colors
Prism Separates white color into the colors that make it up (rainbow)
Spectrum a range of light waves with different wavelengths and energies
Visible spectrum 7 colors of light that make up white light
Shadow places where light is blocked
Reflection when light bounces off an object
The law of reflection Incoming angle = outgoing angle
Refraction The bending of light as it passes from one material into another
Transparent (Glass, water, light plastic) allow light to pass through
Lenses Tools that refract light
Convex lens fat in the middle, magnifies, gathers light rays
Concave lens skinny in the middle, makes smaller, spreads light rays
Vibration a back and forth motion that causes sound
Energy what is needed to start an object's vibration
Echo when sound waves bounce off of surfaces
frequency the number of times a sound source vibrates in one second
pitch the highness or lowness of a sound, determined by frequency
amplitude the energy of a sound wave
Created by: crcaumont
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