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 unit that compares the intensity of different sounds






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






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






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






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






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






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






9. Any motion that repeats at regular time intervals






10. Consists of the cochlea and the auditory nerve






11. Consists of the ear canal






12. When two or more waves overlap or combine together






13. The material through which a wave travels through






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






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






16. The number of complete cycles in a given time






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






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






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






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






21. The frequency of a sound as you perceive it






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






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






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






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






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






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






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






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






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






31. Wavelength x frequency






32. The lowest point below the rest position






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






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






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