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