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Glossary of Ch. 22 Notes

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type of energy that travels as a wave
light
a wave that consists of electic and magnetic fields that vibrate at right angles to each other
electromagnetic waves
EM waves are produced by the vibration of an _____ ____ _____
electrically charged particle
transfer of energy as electromagnetic waves
radiation
distance
-------
time
speed
the speed of light is
300,000km/s
the time it takes light to travel one year
light year
Why is light from the sun important?
light is a major source of energy on earth
the entire range of EM waves
electromagnetic spectrum
Name the EM spectrum from long wavelength to short wavelength
radio waves, microwaves, infared waves, visible light (ROY G BIV), UV waves, X rays, gamma rays
visible light of all wavelengths combined
white light
light waves bounce off an object
reflection
the bending of a wave as it pass from one substance to another
refraction
waves combine and form a larger wave
cinstructive interference
waves combine and form a smaller wave
destructive interference
matter through which light is easily transmitted
transparent
transmits light but also scatters the light as it passes through the matter
translucent
matter that doesn't transmit any light
opaque

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