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