Electromagnetc spectrum Flashcards
(17 cards)
list the waves on electromagnetic spectrum from lowest frequency to highest frequency
Radio, microwave, infrared, visible light, uv, xray, gamma
this wave has the highest frequency and the shortest wave length
gamma wave
this wave has the lowest frequency and the longest wavelength
radio wave
What do all EM waves have in a vaccuum
speed
what are EM waves drawn as and what are they really?
transverse but are really transverse waves because their particles move perpendicular to direction of energy
what is the only part of EM spectrum that is visible to naked eye
visible light
What causes the human eye to see different colors?
Different wavelengths of light will be reflected into eyes colors that aren’t seen are absorbed into object
does wearing a black tee in the summer make you hotter or cooler and why
hotter because black absobs all of the sun’s energy and colors
what are four things do EM waves all have in commin
same speed, they are all emitted by sun and other stars, they are all classified by their wavelength/frequency, and do not require a medium to travel
what does the law of reflection state
the angle of incidence is equal to the angle of reflection
an object that allows all of the light pass though it
transparent
and object that allows some light to pass through it
translucent
an object that allows no light to pass through it
opaque
the bending of a light wave as it enters a new medium
refraction
refraction explains why a spoon looks bent in water
true
refraction happens light_when it passes from air into water
slows down
what are 2 forms of energy
sound & light