Test
Ch.20
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Preguntas del test (13)
1The source of every sound is something that is
- Amoving.
- Ba net emitter of energy.
- Cvibrating.
- Daccelerating.
- Eundergoing simple harmonic motion.
2A sound wave is a
- Atransverse wave.
- Blongitudinal wave.
- Call of the above
- Dnone of the above
3A high-frequency sound source produces a high
- Aamplitude.
- Bpitch.
- Cspeed.
- Dall of the above
- Enone of the above
4The approximate range of human hearing is
- A40 hertz to 40,000 hertz.
- B20 hertz to 20,000 hertz.
- C10 hertz to 10,000 hertz.
- Dnone of the above
5A wave of frequency of 1000 hertz vibrates at
- Amore than 1000 cycles per second.
- Bless than 1000 cycles per second.
- C1000 cycles per second.
- Dnone of the above
6Sound travels fastest in
- Asteel.
- Ba vacuum.
- Cair.
- Dwater.
7Sound waves cannot travel in
- Aa vacuum.
- Bwater.
- Cair.
- Dsteel.
8In air and in water the same sound travels with different
- Aspeeds.
- Bfrequencies.
- Cboth of these
- Dneither of these
9Compressions and rarefactions normally travel in
- Aright angles to the wave direction.
- Bopposite directions in a wave.
- Cthe same direction in a wave.
- Dnone of the above
10Which does NOT belong to the same family?
- Ashock waves
- Binfrasonic waves
- Cradio waves
- Dultrasonic waves
- Elongitudinal waves
11Sound travels faster in air if the air temperature is
- Aaverage.
- Bwarm.
- Ccold.
- Dany of the above.
12The explanation for refraction must involve a change in
- Awavelength.
- Bfrequency.
- Cspeed.
- Dall of the above
- Enone of the above
13When sound travels faster near the ground than above, bending of sound tends to be
- Ato the right.
- Bto the left.
- Cupward.
- Ddownward.
- Enone of the above.
Información
- Descripción
- Sound
- Autor
- Winston Schultz
- Idioma
- English
- Visitas
- 8
- Etiquetas
- Valoración
- Aún sin valoraciones Valora este test