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






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






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






4. The lowest point below the rest position






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






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






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






8. Wavelength x frequency






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






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






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






12. Any motion that repeats at regular time intervals






13. The frequency of a sound as you perceive it






14. The material through which a wave travels through






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






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






17. Consists of the ear canal






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






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






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






21. The number of complete cycles in a given time






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






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






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






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






26. When two or more waves overlap or combine together






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






28. Consists of the cochlea and the auditory nerve






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






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






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






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






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






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






35. A unit that compares the intensity of different sounds