Electromagnetic Spectrum
Flashcard
•
Science
•
8th Grade
•
Practice Problem
•
Hard
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15 questions
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1.
FLASHCARD QUESTION
Front
What are electromagnetic waves?
Back
Electric & magnetic fields (energy) that travel through empty space very quickly.
2.
FLASHCARD QUESTION
Front
What part of the electromagnetic spectrum is visible to the human eye?
Back
Only a small part.
3.
FLASHCARD QUESTION
Front
What type of electromagnetic waves help your body produce vitamin D?
Back
Ultraviolet rays.
4.
FLASHCARD QUESTION
Front
How do electromagnetic waves differ from sound waves?
Back
Electromagnetic waves can travel through empty space, while sound waves require a medium.
5.
FLASHCARD QUESTION
Front
What happens to the wavelength of electromagnetic waves as their frequency increases?
Back
High frequency waves have short wavelengths.
6.
FLASHCARD QUESTION
Front
What are the different types of electromagnetic waves in the spectrum?
Back
Radio waves, microwaves, infrared, visible light, ultraviolet, X-rays, gamma rays.
7.
FLASHCARD QUESTION
Front
What is the speed of electromagnetic waves in a vacuum?
Back
Approximately 299,792 kilometers per second (the speed of light).
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