
Sound Waves and Their Properties
Flashcard
•
Science
•
7th Grade
•
Practice Problem
•
Hard
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15 questions
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1.
FLASHCARD QUESTION
Front
What is sound?
Back
Sound is a disturbance that travels through a medium.
2.
FLASHCARD QUESTION
Front
What does loudness describe?
Back
Loudness describes your perception of the energy of a sound.
3.
FLASHCARD QUESTION
Front
How is frequency measured?
Back
Frequency is measured in Hertz.
4.
FLASHCARD QUESTION
Front
What causes the Doppler effect?
Back
The Doppler effect is caused when a sound source moves, changing the frequency of the waves due to the motion of the source.
5.
FLASHCARD QUESTION
Front
What is the intensity of a sound wave?
Back
The intensity of a sound wave is the amount of energy the wave carries per second through a unit area.
6.
FLASHCARD QUESTION
Front
What is a medium in the context of sound?
Back
A medium is a substance (solid, liquid, or gas) through which sound waves travel.
7.
FLASHCARD QUESTION
Front
What is amplitude in sound waves?
Back
Amplitude is the maximum extent of a vibration or oscillation, measured from the position of equilibrium, and it relates to the loudness of the sound.
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