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






2. Wavelength x frequency






3. When two or more waves overlap or combine together






4. A unit that compares the intensity of different sounds






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






6. The lowest point below the rest position






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






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






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






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






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






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






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






14. Consists of the cochlea and the auditory nerve






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






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






17. The number of complete cycles in a given time






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






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






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






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






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






23. Any motion that repeats at regular time intervals






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






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






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






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






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






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






30. Consists of the ear canal






31. The material through which a wave travels through






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






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






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






35. The frequency of a sound as you perceive it