Learn Unit 8B Vocabulary: Waves through different media

the bouncing back of a wave when it hits a surface through which it cannot pass

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​reflection

the bending of a wave as it passes at an angle from one medium to another

​refraction

the transfer of energy from light waves to particles of matter

​absorbtion

the speed at which a wave travels through a medium

​wave speed

the material through which a wave travels

(solid, liquid, gas)

medium

the tones highness or lowness; depend on frequency

pitch

the number of complete wavelengths that pass a point in one second, measured in Hertz (Hz)

frequency

the distance between tow crests or two troughs of a wave, measured in

meters (m)

wavelength

the height of a wave measured from a center line to the crest or through

amplitude

wave that moves the medium in a direction parallel to the direction in which the wave travels (sound)

longitudinal wave

wave in which the particles move perpendicularly to the direction the wave is traveling (light, water)

transverse wave

Match

Match the following

• amplitude

• wavelength

• frequency

• pitch

height of a wave

distance from crest to crest

number of wavelengths per second

highness or lowness of a tone

• height of a wave

• distance from crest to crest

• number of wavelengths per second

• highness or lowness of a tone

Match

Match the following

• absorption

• refraction

• reflection

• medium

energy from light to matter

bending of light

bouncing of light

material a wave passes through

• energy from light to matter

• bending of light

• bouncing of light

• material a wave passes through

Match

Match the following examples

• reflection

• refraction

• absorbtion

• longitudinal wave

• transvers wave

mirror

binoculars

seeing the color red

parallel to wave direction

Up and down motion

• mirror

• binoculars

• seeing the color red

• parallel to wave direction

• Up and down motion