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Questions and Answers
What type of wave is a sound wave?
What type of wave is a sound wave?
- Stationary wave
- Mechanical or longitudinal wave (correct)
- Electromagnetic wave
- Transverse wave
Why can't sound waves be made in a vacuum?
Why can't sound waves be made in a vacuum?
- Because a vacuum is too small to allow sound waves to form
- Because there are no particles to vibrate in a vacuum (correct)
- Because the temperature in a vacuum is too low
- Because there is no air in a vacuum
What happens to the particles of a medium as a sound wave passes through it?
What happens to the particles of a medium as a sound wave passes through it?
- They vibrate in the opposite direction of the wave
- They do not move at all
- They change direction randomly
- They vibrate in the same direction as the wave (correct)
What are the components of a sound wave?
What are the components of a sound wave?
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In what direction do sound waves travel?
In what direction do sound waves travel?
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Study Notes
Sound Waves
- A sound wave is a mechanical or longitudinal wave caused by vibrations of bodies.
- Sound waves require a medium to travel through.
- In a vacuum, no sound can be made because there are no particles to vibrate.
- In a longitudinal wave, particles of the medium vibrate in the same direction as the wave travels.
- Sound waves consist of compressions and rarefactions, formed as particles compress together and then spread out.
- Sound waves travel in all directions away from their source.
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