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 number of complete cycles in a given time






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






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






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






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






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






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






8. Any motion that repeats at regular time intervals






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






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






11. Consists of the ear canal






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






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






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






15. A unit that compares the intensity of different sounds






16. Wavelength x frequency






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






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






19. The material through which a wave travels through






20. Consists of the cochlea and the auditory nerve






21. The frequency of a sound as you perceive it






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






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






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






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






26. The lowest point below the rest position






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






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






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






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






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






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






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






34. When two or more waves overlap or combine together






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