EM Waves

Flashcard
•
Physics
•
9th - 12th Grade
•
Hard
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15 questions
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1.
FLASHCARD QUESTION
Front
What are electromagnetic waves?
Back
Electromagnetic waves are waves that can travel through the vacuum of space and consist of oscillating electric and magnetic fields. They include radio waves, microwaves, infrared, visible light, ultraviolet, x-rays, and gamma rays.
2.
FLASHCARD QUESTION
Front
What is the speed of electromagnetic waves in a vacuum?
Back
The speed of electromagnetic waves in a vacuum is approximately 3.00 x 10^8 meters per second.
3.
FLASHCARD QUESTION
Front
What is frequency in the context of electromagnetic waves?
Back
Frequency is the number of waves that pass a given point in one second, measured in hertz (Hz). It is inversely related to wavelength.
4.
FLASHCARD QUESTION
Front
What is wavelength?
Back
Wavelength is the distance between successive crests (or troughs) of a wave, typically measured in meters.
5.
FLASHCARD QUESTION
Front
What is the relationship between frequency and wavelength?
Back
The relationship is given by the equation: speed = frequency x wavelength. As frequency increases, wavelength decreases.
6.
FLASHCARD QUESTION
Front
What is a crest in a wave?
Back
A crest is the highest point of a wave.
7.
FLASHCARD QUESTION
Front
What is a trough in a wave?
Back
A trough is the lowest point of a wave.
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