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