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 disturbance in matter that carries energy from one place to another






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






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






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






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






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






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






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






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






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






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






12. Any motion that repeats at regular time intervals






13. The lowest point below the rest position






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






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






16. Consists of the ear canal






17. Wavelength x frequency






18. Consists of the cochlea and the auditory nerve






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






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






21. The material through which a wave travels through






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






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






24. The number of complete cycles in a given time






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






26. A unit that compares the intensity of different sounds






27. When two or more waves overlap or combine together






28. The frequency of a sound as you perceive it






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






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






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






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






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






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






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