8- The speed of acoustic vibrations that produce an audible sound will be higher in human blood than in ground glass B. False A. True 9- The sound travels from particle to particle in the form of vibrations and has different speeds in different mediums. A. True B. False 10- Loudness measures the sound energy reaching the ear per second and depends on the amplitude of the sound wave. The unit used to measure the loudness of sound is Hertz A. True B. False

8- The speed of acoustic vibrations that produce an audible sound will be higher in human blood than in ground glass B. False A. True 9- The sound travels from particle to particle in the form of vibrations and has different speeds in different mediums. A. True B. False 10- Loudness measures the sound energy reaching the ear per second and depends on the amplitude of the sound wave. The unit used to measure the loudness of sound is Hertz A. True B. False

Inquiry into Physics

8th Edition

ISBN:9781337515863

Author:Ostdiek

Publisher:Ostdiek

Chapter6: Waves And Sound

Section: Chapter Questions

Problem 4C

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Similar questions

A sound wave propagates in air at 27C with frequency 4.00 kHz. It passes through a region where the temperature gradually changes and then moves through air at 0C. Give numerical answers to the following questions to the extent possible and state your reasoning about what happens to the wave physically. (a) What happens to the speed of the wave? (b) What happens to its frequency? (c) What happens to its wavelength?
What is the minimum speed at which a source must travel toward you for you to be able to hear that its frequency is Doppler shifted? Thai is, what speed produces a shift of 0.300% on a day when the speed of sound is 331 m/s?
(a) Ear trumpets were never very common, but they did aid people with hearing losses by gathering sound over a large area and concentrating it on the smaller area of the eardrum. What decibel increase does an ear trumpet produce it its sound gathering area is 900 cm2 and the area of the eardrum is 0.500 cm2, but the trumpet only has an eficiency of 5.00% in transmitting the sound to the eardrum? (b) Comment on the usefulness of the decibel increase found in part (a).
What frequency sound has a 0.10m wavelength when the speed of sound is 340 m/s?
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(a) Seismographs measure the arrival times of earthquakes with a precision of 0.100 s. To get the distance to the epicenter of the quake, geologists compare the arrival times of S- and P-waves, which travel at different speeds. If S- and P-waves travel at 4.00 and 7.20 km/s, respectively, in the region considered, how precisely can the distance to the source of the earthquake be determined? (b) Seismic waves from underground detonations of nuclear bombs can be used to locate the test site and detect violations of test bans. Discuss whether your answer to (a) implies a serious limit to such detection. (Note also that the uncertainty is greater if there is an uncertainty in the propagation speeds of the S- and P-waves.)
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27. A water wave travels at a speed of 6 m/s with a wavelength of 200 cm. What is the frequency of this wave? A. 12 Hz B. 0.003 Hz C. 3 Hz D. 0.6 Hz E. 24 Hz
person shouts and their voice creates a sound wave with a frequency of 540 Hz. Their voicetravels distance of 154m before it is heard by their friends 0.467 seconds later.a.What is the speed of the wave?b. What is the wavelength of the wave?C.What is the period of the wave?
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