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Mechanical Waves And Sound

Subject : engineering
Instructions:
  • Answer 35 questions in 15 minutes.
  • If you are not ready to take this test, you can study here.
  • Match each statement with the correct term.
  • Don't refresh. All questions and answers are randomly picked and ordered every time you load a test.

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






2. Wavelength x frequency






3. Consists of the cochlea and the auditory nerve






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






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






6. The material through which a wave travels through






7. The frequency of a sound as you perceive it






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






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






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






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






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






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






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






15. A unit that compares the intensity of different sounds






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






17. The number of complete cycles in a given time






18. Consists of the ear canal






19. Any motion that repeats at regular time intervals






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






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






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






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






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






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






26. When two or more waves overlap or combine together






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






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






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






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






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






32. The lowest point below the rest position






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






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






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






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