PHYS 1511 Chapter Notes - Chapter 16: Sound, Decibel, Logarithmic Scale

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kiranmsubbu

21 Apr 2023

School

University of Iowa

Department

Physics

Course

PHYS 1511

Professor

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Chapter 16 of cutnell & johnson physics, young & stadler, vol. 1, 11th ed. introduces the concept of sound and its characteristics. Sound is a form of mechanical energy that is created by vibrations in matter, usually air, which is transmitted through a medium in the form of waves. These waves are described in terms of their frequency, wavelength, and amplitude. The chapter starts by discussing the characteristics of sound waves, including their longitudinal nature, speed, and the relationship between frequency and wavelength. The frequency of a sound wave is the number of complete cycles it makes in one second, measured in hertz (hz), while its wavelength is the distance between two consecutive points on the wave that are in phase. The speed of sound depends on the medium it is traveling through, and it is typically faster in solids than in liquids or gases.

Related Questions

When a sound wave passes from air into water, what properties of the wave will change?

(a) Frequency

(b) Wavelength

(d) Both Frequency and wavelength

(e) Both Wavespeed and Wavelength

periwinkleherring678

Lets try this again, I was told to post this here because it'sapparently too advanced for alg-precalc.

When sound waves travel through a solid, a liquid, or a gas, themolecules of the medium vibrate in the direction of the motion ofthe sound wave. The frequency, f, of a sound wave is measured innumber of vibrations in a second. The unit of measure is hertz. Onehertz (Hz) is one vibration per second. The human ear can hear arange of frequencies from about 20 Hz to about 20,000 Hz.Frequency, wavelength, C, and speed, v, of a sound wave are relatedby the formula, v = fC.

The price of soundproofing a room depends on the frequency of thesound. A contractor used this formula to quote a price to John tosoundproof a room: P = 2491.5f, where P represents the price. TheSmith home has 7 rooms How much will it cost Miguel to soundproofall the rooms in his home?

$ 1152.44
$1534.76
$2685.84
$1918.45

1. A sound wave is an example of a transverse wave.

TrueFalse

2.The speed of a wave traveling along with a spring

a. depends on the amplitude of the wave.

b. depends on the frequency of the wave.

c. depends on the tension in the spring.

d. depends on the mass of the spring.

e. More than one of the above.

f. None of the above.

3. A standing wave is created through the interaction of many traveling waves. The name given to the stationary points along a standing wave is Fill in the Blank...................?

4. In a sound wave, the displacement nodes are pressure Fill in the Blank01(nodes or antinodes) and displacement antinodes are pressure Fill in the Blank02(nodes or antinodes). You must get both questions correctly to receive credit for this question.

5. The speed of sound in air is around 345 m/s.A tuning fork vibrates at 683 Hz above the open end of the sound resonance tube. What is the wavelength (in cm) of the sound waves in the tube?

6. In terms of the wavelength of the sound wave, how far below the open end of the resonance tube is the first resonant position?

a. Three-quarters of the wavelength.

b. One wavelength.

c. One half of the wavelength.

d. One-quarter of the wavelength.

limefox489

PHYS 1511 Chapter Notes - Chapter 16: Sound, Decibel, Logarithmic Scale

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