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






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






3. Consists of the ear canal






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






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






6. Consists of the cochlea and the auditory nerve






7. The number of complete cycles in a given time






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






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






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






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






12. A unit that compares the intensity of different sounds






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






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






15. The frequency of a sound as you perceive it






16. When two or more waves overlap or combine together






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






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






19. Wavelength x frequency






20. The lowest point below the rest position






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






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






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






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






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






26. Any motion that repeats at regular time intervals






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






28. The material through which a wave travels through






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






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






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






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






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






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






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