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Sound & Light 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. Given the following wavelengths and velocities, which of the following waves will have the lowest wave period?

Question 2 2. Given the frequency of a wave which is 3 x 10^-5 Hz, what is the wave period of this wave?

Question 3 3.

Which of the following is an example of diffuse reflection?

A. Reflection off a still pond

B. Reflection off a gravel road

C. Reflection off the sand on a beach

D. Reflection from a window pane

Question 4 4.

Which of the following are examples of specular reflection?

A. Reflection off a mirror

B. Reflection off a flowing river

C. Reflection off a glass tabletop

D. Reflection off a carpet

Question 5 5. Which color has the shortest wavelength?

Page 2

Question 6 6. Which color has the highest frequency?

Question 7 7. Gamma-ray bursts ______.

Question 8 8. Which of the following does NOT produce gamma rays?

Question 9 9. For a sound wave, how does our brain interpret a lower frequency wave?

Question 10 10. For a light wave, how does our brain interpret a higher frequency wave?

Page 3

Question 11 11. Which of the following describes 'transmitted light'?

Question 12 12. Which of the following is NOT a factor that transmittance depends on?

Question 13 13. Which of the following belong to the electromagnetic spectrum?

Question 14 14. Which of the following is NOT a source of white light?

Question 15 15. Which of these is NOT an example of a wave that has rarefactions?

Page 4

Question 16 16. Rarefactions ONLY occur in which of these types of wave?

Question 17 17. Which of the following is true concerning UV light?

Question 18 18. Which type of UV light is the most harmful to humans?

Question 19 19. At what decibel level does sound become dangerous to hearing?

Question 20 20. Choose the correct statement.

Page 5

Question 21 21. Which of these statements about frequency is correct?

Question 22 22. Which of the following statements is not true of sound waves?

Question 23 23. The vertical distance from the center line to a peak, or from the center line to a trough, is called what?

Question 24 24. On a diagram/graph that plots position in the x-direction against position in the y-direction, what does the length from peak to peak or trough to trough represent?

Question 25 25. A standard tuning fork uses a sound that travels through air at a frequency of 440 Hz. What is the amplitude of the sound wave emitted into the air by the tuning fork at room temperature.

Page 6

Question 26 26. A long range early warning radar system is used for air defense operations. The operator wishes to increase the maximum detection range by increasing the power output. By increasing the power, how does this affect the amplitude of the electromagnetic wave emitted by the radar system?

Question 27 27. Prisms are usually made out of

Question 28 28. The property of a wave that is defined as the number of oscillations per second is called

Question 29 29. Which of the following statements is TRUE?

Question 30 30. If the surface of an object is smooth, the reflection off it is called ______. If the object's surface is rough, the reflection is called ______.

Sound & Light 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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