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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. The frequency of a sound as you perceive it






2. The material through which a wave travels through






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






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






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






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






7. Consists of the ear canal






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






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






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






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






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






13. The lowest point below the rest position






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






15. A unit that compares the intensity of different sounds






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






17. The number of complete cycles in a given time






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






19. When two or more waves overlap or combine together






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






21. Consists of the cochlea and the auditory nerve






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






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






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






25. Any motion that repeats at regular time intervals






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






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






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






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






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






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






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






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






34. Wavelength x frequency






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






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