
7th Grade Unit #3 Waves Review
Flashcard
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Science
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7th Grade
•
Practice Problem
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Hard
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1.
FLASHCARD QUESTION
Front
What is the definition of amplitude in a wave?
Back
Amplitude is the maximum distance that a wave's crest or trough moves from its rest position. It is half the distance from the crest to the trough.
2.
FLASHCARD QUESTION
Front
What is the medium in the context of waves?
Back
The medium is the substance through which a wave travels, such as air, water, or solid materials.
3.
FLASHCARD QUESTION
Front
How does the speed of sound waves vary with different mediums?
Back
The speed of sound waves depends on the medium through which they travel; sound travels faster in solids than in liquids, and faster in liquids than in gases.
4.
FLASHCARD QUESTION
Front
What is the relationship between wavelength and frequency in waves?
Back
Wavelength and frequency are inversely related; as the wavelength increases, the frequency decreases, and vice versa.
5.
FLASHCARD QUESTION
Front
What is a crest in a wave?
Back
A crest is the highest point of a wave.
6.
FLASHCARD QUESTION
Front
What is a trough in a wave?
Back
A trough is the lowest point of a wave.
7.
FLASHCARD QUESTION
Front
What is the definition of frequency in waves?
Back
Frequency is the number of waves that pass a given point in one second, measured in hertz (Hz).
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