Quiz

Sound Quiz 1

JanaLee Moses 16 perguntas Atualizado em 16 fev 2018

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Perguntas do quiz (16)

1A region of high molecular density and high air pressure is called a _____________________.
1. Acompression
2. Brarefaction
3. Cvibration
4. Dwave
2Sound waves are ________________.
1. Alongitudinal
2. Btransverse
3. Csine waves
4. Delectromagnetic waves
3Frequency is defined as what?
1. AThe number of cycles per unit of time
2. BThe amount of time per cycle.
3. CThe same as velocity.
4. DThe distance between cycles of a wave.
4With sound, frequency determines _______________.
1. Apitch
2. Bcolor
3. Cloudness
4. Dintensity
5Sound waves can travel through which of the following? (Select ALL that apply)
1. ASolids
2. BLiquids
3. CGases
4. DEmpty space
6The speed of down depends on both the ___________ and ____________ of the medium.
1. Atype, temperature
2. Btype, harmonics
3. Ctemperature, harmonics
4. Dharmonics, velocity
7Sound waves can be approximated as __________.
1. Aspherical
2. Bconical
3. Csine waves
4. Dcubic
8As the source of a sound approaches you, the pitch of the sound seems to ___________.
1. Abe higher
2. Bbe lower
3. Cremain the same
9Because of the Doppler Effect, when a sound source is moving away from you, the frequency seems to ____________ although it actually ____________.
1. Alessen, remains the same
2. Bbecome greater, remains the same
3. Cremain the same, lessens
4. Dremain the same, becomes greater
10As a soundboard vibrates back and forth, its _________ is converted into sound waves.
1. Akinetic energy
2. Bpotential energy
3. Charmonics
4. Dintensity