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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. Wavelength x frequency






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






3. The number of complete cycles in a given time






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






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






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






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






8. The frequency of a sound as you perceive it






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






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






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






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






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






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






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






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






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






18. Any motion that repeats at regular time intervals






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






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






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






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






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






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






25. When two or more waves overlap or combine together






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






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






28. Consists of the cochlea and the auditory nerve






29. A unit that compares the intensity of different sounds






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






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






32. The lowest point below the rest position






33. Consists of the ear canal






34. The material through which a wave travels through






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






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