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Questions and Answers
What is the unit used to measure the volume of sound?
What is the unit used to measure the volume of sound?
- Decibel (correct)
- Vibration
- Amplitude
- Hertz
Sound travels fastest through gases.
Sound travels fastest through gases.
False (B)
What is the device used to measure the volume of sound?
What is the device used to measure the volume of sound?
Sound level meter
Fast vibrations produce a ______________ pitched sound.
Fast vibrations produce a ______________ pitched sound.
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Match the characteristics of sound with their definitions:
Match the characteristics of sound with their definitions:
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Study Notes
Sound Travel
- When an object vibrates, it collides with surrounding air particles, causing them to vibrate too.
- These vibrations travel in waves, known as sound waves.
- Sound waves can travel through solids, liquids, and gases.
- Sound travels best through solids.
Sound Limitations
- Sound cannot travel in a vacuum.
Sound Properties
- Volume: refers to how loud or quiet the sound is.
- A sound level meter is used to measure the volume of sound.
- The unit of measurement for sound volume is the decibel (dB).
Pitch
- Pitch refers to how high (sharp) or low (rough) a sound is.
- Slow vibrations produce a low-pitched sound.
- Fast vibrations produce a high-pitched sound.
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