

Astronomy and Electromagnetic Radiation
Flashcard
•
Physics
•
12th Grade
•
Practice Problem
•
Hard
Karen Fedder
FREE Resource
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30 questions
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1.
FLASHCARD QUESTION
Front
Electromagnetic radiation
Back
A kind of radiation including visible light, radio waves, gamma rays, and X-rays, in which electric and magnetic fields vary simultaneously.
2.
FLASHCARD QUESTION
Front
Gamma rays
Back
Electromagnetic waves with the shortest wavelengths and highest frequencies; high energy.
3.
FLASHCARD QUESTION
Front
X-rays
Back
Electromagnetic waves with wavelengths shorter than ultraviolet rays, but longer than gamma rays; high energy.
4.
FLASHCARD QUESTION
Front
Ultraviolet (UV)
Back
Radiation in the region of the electromagnetic spectrum between the visible and the x-ray regions; used to sterilize medical equipment; can harm eyes.
5.
FLASHCARD QUESTION
Front
Visible light
Back
Wavelengths between 400-700 nm; humans can see it; shorter than infrared, longer than UV.
6.
FLASHCARD QUESTION
Front
Infrared
Back
Light waves that are longer than visible light, but shorter than microwaves; described as heat radiation; some reptiles can see it; Webb Telescope uses it.
7.
FLASHCARD QUESTION
Front
Microwave radiation
Back
Shorter than radio, longer than infrared; the radiation left over from the original universal expansion ('Big Bang') is in this range.
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