Sound Test
Quiz by Twila Chafai
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25 questions
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- Q1Sound wavesare longitudinal waves.do not require a medium for transmission.are transverse waves.are a part of the electromagnetic spectrum.30s
- Q2Which of the following is the region of a sound wave in which the density and pressure are greater than normal?wavelengthamplituderarefactioncompression30s
- Q3The highness or lowness of a sound is perceived aspitch.compression.ultrasound.wavelength.30s
- Q4In general, sound travels faster throughgases than through solids.empty space than through matter.solids than through gases.gases than through liquids.30s
- Q5A train moves down the track toward an observer. The sound from the train, as heard by the observer, is ________________ the sound heard by a passenger on the train.a different timbre thanhigher in pitch thanthe same aslower in pitch than30s
- Q6The Doppler effect occurs withonly sound waves.all waves.only water waves.only transverse waves.30s
- Q7The perceived loudness of a sound is measured inwatts per square meter.hertz.decibels.watts.30s
- Q8When the frequency of a force applied to a system matches the natural frequency of vibration of the system, ______________ occurs.damped vibrationtimbrerandom vibrationresonance30s
- Q9Audible beats are formed by the interference of two wavesof slightly different frequencies.of greatly different frequencies.from the same vibrating source.with equal frequencies, but traveling in opposite directions.30s
- Q10Of the following materials, sound waves travel fastest throughair at 0C.helium at 0C.air at 100C.copper at 0C.30s
- Q11At a distance of 3 m, the intensity of a sound will be _____________ the intensity it was at a distance of 1 m.one-third9 timesone-ninth3 times30s
- Q12The Tacoma Narrows bridge collapsed in 1940 when winds caused ______________ to build up in the bridge.a longitudinal wavefrictiona standing wavea compression wave30s
- Q13Musical instruments of different types playing the same note may often be identified by the ______________ of their sounds.intensitypitchfundamental frequencytimbre30s
- Q14How many beats per second are heard when two vibrating tuning forks having frequencies of 342 Hz and 345 Hz are held side by side?3 Hz5 Hz343.5 Hz687 Hz30s
- Q15Points of maximum amplitude on a standing wave are calledantinodesnodes30s