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