What are sound waves?
U7.W4.MC Sound, Waves, Communication & Technology

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Science
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4th Grade
•
Hard
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1.
FLASHCARD QUESTION
Front
Back
Sound waves are vibrations that travel through a medium (like air, water, or solids) and can be heard when they reach our ears.
2.
FLASHCARD QUESTION
Front
Do sound waves require a medium to travel?
Back
Yes, sound waves require particles in a medium (like air or water) to travel.
3.
FLASHCARD QUESTION
Front
Can sound be heard in space?
Back
No, sound cannot be heard in space because there are no particles to carry the sound waves.
4.
FLASHCARD QUESTION
Front
What is a transverse wave?
Back
A transverse wave is a type of wave where the particles move up and down perpendicular to the direction the wave travels.
5.
FLASHCARD QUESTION
Front
What is a longitudinal wave?
Back
A longitudinal wave is a type of wave where the particles move back and forth in the same direction as the wave travels.
6.
FLASHCARD QUESTION
Front
What happens to the amplitude of a wave when more energy is added?
Back
The amplitude of the wave increases when more energy is added.
7.
FLASHCARD QUESTION
Front
What is amplitude in a wave?
Back
Amplitude is the height of the wave from its rest position to its crest or trough, indicating the energy of the wave.
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