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