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






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






3. A unit that compares the intensity of different sounds






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






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






6. The frequency of a sound as you perceive it






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






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






9. The material through which a wave travels through






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






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






12. Wavelength x frequency






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






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






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






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






17. When two or more waves overlap or combine together






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






19. Any motion that repeats at regular time intervals






20. The number of complete cycles in a given time






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






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






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






24. Consists of the ear canal






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






26. The lowest point below the rest position






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






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






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






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






31. Consists of the cochlea and the auditory nerve






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






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






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






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