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Mechanical Waves And Sound

Subject : engineering
Instructions:
  • Answer 35 questions in 30 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 lowest point below the rest position






2. When two or more waves overlap or combine together






3. Consists of the ear canal






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






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






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






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






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






9. Consists of the cochlea and the auditory nerve






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






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






12. The frequency of a sound as you perceive it






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






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






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






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






17. Any motion that repeats at regular time intervals






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






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






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






21. The material through which a wave travels through






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






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






24. A unit that compares the intensity of different sounds






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






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






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






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






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






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






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






32. Wavelength x frequency






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






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






35. The number of complete cycles in a given time






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