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. The frequency of a sound as you perceive it






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






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






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






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






6. A unit that compares the intensity of different sounds






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. Consists of the cochlea and the auditory nerve






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






11. Wavelength x frequency






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






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






14. The number of complete cycles in a given time






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






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






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






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






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






20. Any motion that repeats at regular time intervals






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






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






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






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






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






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






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






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






29. The material through which a wave travels through






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






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






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






33. When two or more waves overlap or combine together






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






35. The lowest point below the rest position