Electromagnetic Spectrum/Waves Flashcards
Which colors of visible light have the highest frequency?
VIOLET
What is white light?
What is diffraction?
WHITE LIGHT IS ALL THE FREQUENCIES OF ROYGBIV TOGETHER. DIFFRACTION BREAKS UP ROYGBIV INTO ITS FREQUENCIES
If I were planning a trip to the zoo and was going to be walking around in the sun all day… should I wear a black or white t-shirt? WHY? ?
WHITE SHIRT – IT REFLECTS ALL FREQUENCIES OF LIGHT. (BLACK – ABSORBS ALL FREQUENCIES OF LIGHT)
Apples appear red because they ________ red light frequencies??
REFLECTS
What property of a wave accounts for the colors we see?
THE WAVES FREQUENCY
Which part of the electromagnetic spectrum has the highest frequency?
GAMMA RAYS
Which part of the electromagnetic spectrum has the longest wavelengths? How large can they be?
RADIO – AS LONG AS A FOOTBALL FIELD
Cell phones use what type of waves from the EM spectrum?
MICROWAVES
Some animals can detect their prey by using thermal radiation or body heat? Which part of the EM spectrum is this?
INFRARED
List the EM spectrum in order starting with the highest frequencies moving to the lowest.
GAMMA, X-RAY, ULTRAVIOLET, VISUAL LIGHT, INFRARED LIGHT, MICROWAVES, RADIO WAVES
What do ALL waves transfer?
ENERGY
The amplitude of a wave shows how much ________ a wave is carrying?
ENERGY
What is the property that is the highest part of a wave?
What is the property that is the lowest part of a wave?
CREST, TROUGH
What is the relationship between wavelength and frequency?
LONGER WAVELENGTH = LOWER FREQUENCY, SHORTER WAVELENGTH = HIGHER FREQUENCY
If you found an unknown wave how could you identify what kind of wave it is? Name 3 things you could do!
MEASURE WAVELENGTH, MEASURE FREQUENCY, MEASURE AMPLITUDE