EM Spectrum
Flashcard
•
Science
•
7th Grade
•
Practice Problem
•
Hard
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15 questions
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1.
FLASHCARD QUESTION
Front
What are Gamma Rays?
Back
High-energy electromagnetic waves emitted by radioactive materials.
2.
FLASHCARD QUESTION
Front
What is the function of Microwaves?
Back
Microwaves make water molecules vibrate, which warms them up.
3.
FLASHCARD QUESTION
Front
What are Ultraviolet Rays?
Back
Electromagnetic waves that help the body produce vitamin D; invisible to humans but visible to some insects.
4.
FLASHCARD QUESTION
Front
How does increasing the amplitude of a wave affect its energy?
Back
Increasing the amplitude of a wave increases the wave's energy.
5.
FLASHCARD QUESTION
Front
What are Radio Waves used for?
Back
Radio waves are used to send signals, including WiFi and text messages.
6.
FLASHCARD QUESTION
Front
What is the electromagnetic spectrum?
Back
The range of all types of electromagnetic radiation, from radio waves to gamma rays.
7.
FLASHCARD QUESTION
Front
What is the speed of light in a vacuum?
Back
Approximately 299,792 kilometers per second (or about 186,282 miles per second).
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