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