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Nature of Sound Waves Chapter Exam

Exam Instructions:

Choose your answers to the questions and click 'Next' to see the next set of questions. You can skip questions if you would like and come back to them later with the yellow "Go To First Skipped Question" button. When you have completed the practice exam, a green submit button will appear. Click it to see your results. Good luck!

Page 1

Question 1 1. What common acoustic effect is created by scattering?

Question 2 2. When sound absorption occurs, how is sound energy transferred into another object?

Question 3 3. Technically, what is sound?

Question 4 4. What sort of pattern does sound travel in?

Question 5 5. Sound with a frequency of 950 Hz and a wavelength of 1 m will travel _____ kilometers in 5 minutes.

Page 2

Question 6 6. Wave speed can be found by multiplying the wavelength by the

Question 7 7. The substance that a sound wave travels through is called the

Question 8 8. Within a medium of the same state, wave speed, in general, increases with _____ temperature.

Question 9 9. Risks associated with the use of ultrasound include _____.

Question 10 10. Hollow structures or fluid fluid cavities appear _____ on an ultrasound image.

Page 3

Question 11 11. Bony structures appear _____ on an ultrasound image.

Question 12 12. Ultrasonography was first developed by _____.

Question 13 13. The law of reflection says the ______ angle is equal to the reflected angle.

Question 14 14. Why did people discover they could hear confessions from across the room in the Cathedral of Agrigento in Sicily?

Question 15 15. When a wave hits a surface, one of several things can happen. Which of the following explains how a mirror works?

Page 4

Question 16 16. What did the reflection of earthquake waves allow scientists to determine?

Question 17 17. If 100% of the light frequencies resonate with the electrons of an object, then the object will exhibit

Question 18 18. Resonance of sound waves results in

Question 19 19. When the vibrations of one object match the resonant frequency of a second object, the first object increases the _____ of the vibrations of the second object.

Question 20 20. Resonance of light waves results in

Page 5

Question 21 21. How is a conversation that at 60 decibels different from an 80 decibel vacuum cleaner?

Question 22 22. What is the weakness found in the frequency theory of hearing?

Question 23 23. According to the place theory of hearing, our ears transmit information by firing neurons from different parts of the _____.

Question 24 24. Short sound waves are characterized by _____.

Question 25 25. Which wave parameter is related to the pitch of a sound?

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Question 26 26. Which scale is used to measure the intensity of sound?

Question 27 27. All sound waves are which type of wave?

Question 28 28. Amplitude is a measure of how much _____ is being carried by a wave.

Question 29 29. Sound attenuation occurs when oscillating sound waves are disrupted. What does this mean in terms of sound energy?

Question 30 30. Of the following choices, a sound wave would travel fastest in a

Nature of Sound Waves Chapter Exam Instructions

Choose your answers to the questions and click 'Next' to see the next set of questions. You can skip questions if you would like and come back to them later with the yellow "Go To First Skipped Question" button. When you have completed the practice exam, a green submit button will appear. Click it to see your results. Good luck!

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