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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. The highest point of the wave above the rest position

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

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

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

5. Wavelength x frequency

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

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

8. Consists of the ear canal

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

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

11. A unit that compares the intensity of different sounds

12. The frequency of a sound as you perceive it

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

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

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

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

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

18. Any motion that repeats at regular time intervals

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

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

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

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

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

24. Consists of the cochlea and the auditory nerve

25. The lowest point below the rest position

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

27. The number of complete cycles in a given time

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

29. A disturbance in matter that carries energy from one place to another

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

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

32. When two or more waves overlap or combine together

33. The material through which a wave travels through

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

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