Please, do not forget to SHOW ALL YOUR WORK and Calculations and Also explain your answers. Remember The DUE DATE. This Assignment represents 50% of this module's grade. Total: 8 questions. Please, use a PDF or MS Word DOC format to submit your work. Questions: 1. All the waves shown have the same speed in the same medium. Use a ruler (or eyeball if you can) and rank these waves from most to least for: (a) amplitude, (b) wavelength, (c) frequency, and (d) period ? 2. What is the period, in seconds, that corresponds to each of the following frequencies: (a) 10 Hz, (b) 0.2 Hz, (c) 60 Hz? 3. A skipper on a boat notices wave crests passing his anchor chain every 5 s. He estimates the distance between wave crests to be 15 m. He also correctly estimates the speed of the waves. What is this speed? 4. A weight suspended from a spring is seen to bob up and down over a distance of 20 cm twice each second. What is its frequency? Its period? Its amplitude? 5. Radio waves travel at the speed of light: 300,000 km/s. What is the wavelength of radio waves received at 100.1 MHz on your FM radio dial? 6. A mosquito flaps its wings 600 vibrations per second, which produces the annoying 600 Hz buzz. How far does the sound travel between wing beats. In other words, calculate the wavelength of the mosquito’s sound. Sound travels at 340 m/s in air. 7. On a keyboard, you strike middle C, whose frequency is 256 Hz. (a) What is the period of one vibration of this tone? (b) As the sound leaves the instrument at a speed of 340 m/s, what is its wavelength in air? 8. An oceanic depth-sounding vessel surveys the ocean bottom with ultrasonic waves that travel 1530 m/s in seawater. How deep is the water directly below the vessel if the time delay of the echo to the ocean floor and back is 8 s?

An Introduction to Physical Science

14th Edition

ISBN:9781305079137

Author:James Shipman, Jerry D. Wilson, Charles A. Higgins, Omar Torres

Publisher:James Shipman, Jerry D. Wilson, Charles A. Higgins, Omar Torres

Chapter1: Measurement

Section: Chapter Questions

Problem 2FIB: A possible explanation of observations is called a(n) ___. (1.2)

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(a) amplitude, (b) wavelength, (c) frequency, and (d) period ?

2. What is the period, in seconds, that corresponds to each of the following frequencies:

(a) 10 Hz, (b) 0.2 Hz, (c) 60 Hz?

3. A skipper on a boat notices wave crests passing his anchor chain every 5 s. He estimates the distance between wave crests to be 15 m. He also correctly estimates the speed of the waves. What is this speed?

4. A weight suspended from a spring is seen to bob up and down over a distance of 20 cm twice each second. What is its frequency? Its period? Its amplitude?

5. Radio waves travel at the speed of light: 300,000 km/s. What is the wavelength of radio waves received at 100.1 MHz on your FM radio dial?

6. A mosquito flaps its wings 600 vibrations per second, which produces the annoying 600 Hz buzz. How far does the sound travel between wing beats. In other words, calculate the wavelength of the mosquito’s sound. Sound travels at 340 m/s in air.

7. On a keyboard, you strike middle C, whose frequency is 256 Hz.

(a) What is the period of one vibration of this tone?

(b) As the sound leaves the instrument at a speed of 340 m/s, what is its wavelength in air?

8. An oceanic depth-sounding vessel surveys the ocean bottom with ultrasonic waves that
travel 1530 m/s in seawater. How deep is the water directly below the vessel if the time delay of the echo to the ocean floor and back is 8 s?

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