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Honors Physics Worksheet - Waves and Sound

This worksheet is designed to assess your understanding of waves concepts including sound.

A fisherman notices that wave crests pass the bow of his anchored boat every 3.0 s. He measures the distance between two crests to be 8.5 m. How fast are the waves traveling????
A sound wave in air has a frequency of 262 Hz and travels with a speed of 330 m/s. How far apart are the wave crests????
AM radio signals have frequencies between 550 kHz and 1600 kHz (kilohertz) and travel with a speed of 3.00 x 10^8 m/s. What are the wavelengths of these signals? On FM, the frequencies range from 88.0 MHz to 108 MHz (megahertz) and travel at the same speed; what are their wavelengths????
Calculate the speed of longitudinal waves in (a) water, (b) granite, and (c) steel.???
Determine the wavelength of a 6,000-Hz sound wave traveling along an iron rod.???
A cord of mass 0.55 kg is stretched between two supports 30 m apart. If the tension in the cord is 150 N, how long will it take the pulse to travel from one support to the other????
A sailor strikes the side of his ship just below the surface of the sea. He hears the echo of the wave reflected from the ocean floor directly below 3.0 s later. How deep is the ocean at this point????
If a violin string vibrates at 440 Hz as its fundamental frequency, what are the frequencies of the first four harmonics????
A guitar string is 90 cm long and has a mass of 3.6 g. From the bridge to the support post (=L) is 60 cm, and the string is under a tension of 520 N. What are the frequencies of the fundamental and first two overtones????
Water waves approach an underwater "shelf" where the velocity changes from 2.8 m/s to 2.1 m/s. If the incident wave crests make a 34-degree angle with the shelf, what will the angle of refraction????
Calculate the wavelengths in air at 20 degrees C for sounds in the maximum range of hearing, 20 Hz to 20,000 Hz.???
What is the intensity of sound at the pain level of 120 dB? Compare it to that of a whisper at 20dB.???
What is the intensity level of a sound whose intensity is 2.0 x 10^-6 W/m^2????
Determine the length of an open organ pipe that emits middle C (262 Hz) when the temperature is 21 degrees C.???
An organ pipe is 112 cm long. What are the fundamental and first three audible overtones if the pipe is (a) closed at one end, and (b) open at both ends????
What will be the "beat frequency" if middle C (262 Hz) and C# (277 Hz) are played together????
The predominant frequency of a certain police car's siren is 1800 Hz when at rest. What frequency do you detect if you move with a speed of 30.0 m/s (a) toward the car, and (b) away from the car????

Geometry and Physics Teacher
New Kent High School
New Kent, VA

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