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Mechanical Waves And Sound

Subject : engineering
  • Answer 35 questions in 15 minutes.
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  • Match each statement with the correct term.
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This is a study tool. The 3 wrong answers for each question are randomly chosen from answers to other questions. So, you might find at times the answers obvious, but you will see it re-enforces your understanding as you take the test each time.
1. A disturbance in matter that carries energy from one place to another

2. When a wave bounces off a surface that it cannot pass through

3. A point where a crest or trough occurs midway between two nodes

4. An area where the particles in a medium are spaced close together

5. The number of complete cycles in a given time

6. The bending of a wave as it moves around an obstacle or passes through a narrow opening

7. Wavelength x frequency

8. A technique used for determining the distance to an object underwater

9. Consists of the cochlea and the auditory nerve

10. The highest point of the wave above the rest position

11. A point on a standing wave that has no displacement from the rest position

12. The lowest point below the rest position

13. The rate at which a wave's energy flows through a given area

14. Any motion that repeats at regular time intervals

15. A physical response to the intensity of sound - modified by physical factors

16. An area where the particles in a medium are spread out

17. When two or more waves overlap or combine together

18. The time required for one cycle - a complete motion that returns to its starting point

19. The distance between a point on one wave and the same point on the next cycle of the wave

20. Is the maximum displacement of the medium from its rest position on a wave

21. A wave in which the vibration of the medium is parallel to the direction the wave travels

22. When two or more waves combine to produce a wave with a larger displacement

23. The material through which a wave travels through

24. A unit that compares the intensity of different sounds

25. A change in sound frequency caused by motion of the sound source - motion of the listener - or both

26. Longitudinal waves - compressions and rarefactions that travel through a medium

27. The response of a standing wave to another wave of the same frequency

28. A wave that causes the medium to vibrate at right angles to the direction in which the wave travels

29. A wave that appears to stay in one place - it does not seem to move through the medium

30. A wave that travels along a surface separating two media (more than one medium)

31. Consists of the ear canal

32. The frequency of a sound as you perceive it

33. The bending of a wave as it enters a new medium at an angle

34. When two or more waves combine to produce a wave with a smaller displacement

35. Consists of the eardrum - hammer - anvil - & stirrup