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






2. The lowest point below the rest position






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






4. A unit that compares the intensity of different sounds






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






6. The frequency of a sound as you perceive it






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






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






9. The material through which a wave travels through






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






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






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






13. Any motion that repeats at regular time intervals






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






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






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






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






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






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






20. Consists of the ear canal






21. Wavelength x frequency






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






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






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






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






26. Consists of the cochlea and the auditory nerve






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






28. When two or more waves overlap or combine together






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






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






31. The number of complete cycles in a given time






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






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






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






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