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
What does the word Perpendicular Mean and how does it relate to waves?
CREATES A RIGHT ANGLE OR 90 DEGREE ANGLE – THE WAVE MOVES IN A PERPENDICULAR MOTION OF THE DISTURBANCE. (TRANSVERSE)
What does the word parallel mean and how does that relate to waves?
TWO LINES THAT WILL NEVER CROSS – THE WAVE MOVES IN A PARALLEL MOTION OF THE DISTURBANCE. (LONGITUDINAL)
Snapping a rope is an example of what time of wave??
TRANSVERSE
A slinky is an example of what type of wave??
LONGITUDINAL
What type of waves can travel through empty space? EXPLAIN!
LIGHT WAVES – SUNLIGHT CAN TRAVEL THROUGH THE EMPTY SPACE OF THE UNIVERSE AND MAKE ITS WAY TO EARTH
On the blank sheet of paper, draw the diagram of the eye and label it using all the 7 parts that we learned yesterday!
CORNEA, IRIS, LENS, OPTIC NERVE, PUPIL, RETINA, VITREOUS
