Test your basic knowledge |

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 physical response to the intensity of sound - modified by physical factors






2. Consists of the ear canal






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






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






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






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






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






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






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






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






11. Any motion that repeats at regular time intervals






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






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






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






15. The lowest point below the rest position






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






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






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






19. When two or more waves overlap or combine together






20. A unit that compares the intensity of different sounds






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






22. Consists of the cochlea and the auditory nerve






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






24. The material through which a wave travels through






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






26. The number of complete cycles in a given time






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






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






29. Wavelength x frequency






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






31. The frequency of a sound as you perceive it






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






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






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






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