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






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






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






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






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






6. Wavelength x frequency






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






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






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






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






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






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






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






14. Consists of the cochlea and the auditory nerve






15. The lowest point below the rest position






16. The material through which a wave travels through






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






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






19. The frequency of a sound as you perceive it






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






21. Consists of the ear canal






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






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






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






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






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






27. A unit that compares the intensity of different sounds






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






29. When two or more waves overlap or combine together






30. Any motion that repeats at regular time intervals






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






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






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






34. The number of complete cycles in a given time






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