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






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






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






4. The material through which a wave travels through






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






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






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






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






9. When two or more waves overlap or combine together






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






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






12. Any motion that repeats at regular time intervals






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






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






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






16. Wavelength x frequency






17. The lowest point below the rest position






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






19. A unit that compares the intensity of different sounds






20. Consists of the cochlea and the auditory nerve






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






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






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






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






25. The number of complete cycles in a given time






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






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






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






29. The frequency of a sound as you perceive it






30. Consists of the ear canal






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






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






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






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






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







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Can you answer 50 questions in 15 minutes?


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