Electromagnetic waves
Flashcard
•
Physics
•
8th Grade
•
Practice Problem
•
Easy
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16 questions
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1.
FLASHCARD QUESTION
Front
What are electromagnetic waves?
Back
Electromagnetic waves are waves of energy that travel through space at the speed of light, consisting of oscillating electric and magnetic fields.
2.
FLASHCARD QUESTION
Front
What is the wavelength of X-rays?
Back
X-rays have wavelengths in the range of 10^-11 to 10^-8 meters.
3.
FLASHCARD QUESTION
Front
What type of electromagnetic wave has the longest wavelength?
Back
Red light has the longest wavelength in the visible spectrum.
4.
FLASHCARD QUESTION
Front
What is the relationship between frequency and energy in electromagnetic waves?
Back
The higher the frequency of an electromagnetic wave, the higher its energy.
5.
FLASHCARD QUESTION
Front
What are the different types of electromagnetic waves in order of increasing wavelength?
Back
Gamma rays, X-rays, Ultraviolet, Visible light, Infrared, Microwaves, Radio waves.
6.
FLASHCARD QUESTION
Front
What is the frequency range of radio waves?
Back
Radio waves have frequencies ranging from about 3 kHz to 300 GHz.
7.
FLASHCARD QUESTION
Front
What is the speed of electromagnetic waves in a vacuum?
Back
Electromagnetic waves travel at the speed of light, which is approximately 3 x 10^8 meters per second.
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