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Test your basic knowledge |
Mechanical Waves And Sound
Start Test
Study First
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 physical response to the intensity of sound - modified by physical factors
periodic motion
trough
reflection
loudness
2. Consists of the ear canal
reflection
rarefaction
outer ear
refraction
3. The bending of a wave as it enters a new medium at an angle
transverse wave
refraction
resonance
mechanical wave
4. The number of complete cycles in a given time
intensity
standing wave
longitudinal wave
frequency
5. A disturbance in matter that carries energy from one place to another
mechanical wave
amplitude
diffraction
medium
6. Is the maximum displacement of the medium from its rest position on a wave
antinode
inner ear
amplitude
loudness
7. Consists of the eardrum - hammer - anvil - & stirrup
transverse wave
standing wave
reflection
middle ear
8. A wave that causes the medium to vibrate at right angles to the direction in which the wave travels
transverse wave
Doppler effect
mechanical wave
interference
9. Wavelength x frequency
speed =
wavelength
constructive interference
loudness
10. A unit that compares the intensity of different sounds
decibel
frequency
middle ear
crest
11. The frequency of a sound as you perceive it
destructive interference
inner ear
pitch
amplitude
12. The time required for one cycle - a complete motion that returns to its starting point
rarefaction
period
amplitude
periodic motion
13. A technique used for determining the distance to an object underwater
periodic motion
diffraction
sonar
reflection
14. Any motion that repeats at regular time intervals
amplitude
mechanical wave
periodic motion
rarefaction
15. The highest point of the wave above the rest position
crest
constructive interference
outer ear
pitch
16. An area where the particles in a medium are spaced close together
sonar
compression
rarefaction
longitudinal wave
17. Longitudinal waves - compressions and rarefactions that travel through a medium
sound waves
loudness
compression
rarefaction
18. When two or more waves combine to produce a wave with a smaller displacement
crest
interference
middle ear
destructive interference
19. When two or more waves overlap or combine together
interference
decibel
inner ear
mechanical wave
20. The response of a standing wave to another wave of the same frequency
mechanical wave
medium
crest
resonance
21. An area where the particles in a medium are spread out
rarefaction
medium
compression
crest
22. When two or more waves combine to produce a wave with a larger displacement
middle ear
constructive interference
mechanical wave
pitch
23. A change in sound frequency caused by motion of the sound source - motion of the listener - or both
diffraction
surface wave
pitch
Doppler effect
24. The distance between a point on one wave and the same point on the next cycle of the wave
surface wave
reflection
wavelength
middle ear
25. A point on a standing wave that has no displacement from the rest position
diffraction
pitch
resonance
node
26. The material through which a wave travels through
Doppler effect
compression
pitch
medium
27. The rate at which a wave's energy flows through a given area
amplitude
node
trough
intensity
28. A wave in which the vibration of the medium is parallel to the direction the wave travels
longitudinal wave
node
periodic motion
trough
29. The bending of a wave as it moves around an obstacle or passes through a narrow opening
diffraction
sonar
mechanical wave
frequency
30. A wave that appears to stay in one place - it does not seem to move through the medium
sound waves
wavelength
standing wave
node
31. When a wave bounces off a surface that it cannot pass through
Doppler effect
reflection
pitch
sonar
32. The lowest point below the rest position
speed =
reflection
trough
period
33. A point where a crest or trough occurs midway between two nodes
loudness
speed =
antinode
amplitude
34. Consists of the cochlea and the auditory nerve
compression
inner ear
loudness
period
35. A wave that travels along a surface separating two media (more than one medium)
surface wave
crest
interference
sonar