Acoustics MCQs
Acoustics MCQs
Our experts have gathered these Acoustics MCQs through research, and we hope that you will be able to see how much knowledge base you have for the subject of Acoustics by answering these multiple-choice questions.
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1: Forced vibrations mainly occur in _________.
A. Sounding Boards
B. Multiple echoes
C. Both
D. None of these
2: The vibrations along a transverse wave move in a direction _________.
A. Parallel to the wave direction
B. Perpendicular to the wave direction
C. Both of these
D. Neither of these
3: The eardrum vibrates at ____.
A. A much higher frequency than the sound waves that hit it
B. Half the frequency of the sound waves that hit it
C. The same frequency as the sound waves that hit it
D. A constant frequency regardless of the frequency of the sound
4: You can decrease the frequency of a standing wave on a string by __________.
A. Making the string longer.
B. Using a thicker string.
C. Decreasing the tension.
D. All of the above
5: The defining equation for calorimetry is __________.
A. ΔT1 + ΔT2 = 0
B. Q = ML
C. ΔQ1 + ΔQ2 = 0
D. Q1 + Q2 = 0
6: An object is placed as shown in front of a concave mirror. the image of the object will be _____.
A. Inverted (upside down)
B. Upright, enlarged , virtual
C. Real
D. Diminished in size
7: Sound travels from one place to another mainly in a series of _________.
A. Compressions and rarefactions
B. Faster in warm air, faster in humid air
C. Interference
D. Elasticity and shape
8: Loudness is to _____ as pitch is to _____.
A. Frequency; intensity
B. Amplitude; frequency
C. Pitch; tone
D. Amplitude; intensity
9: What occurs with the doppler effect are changes in _______.
A. Frequency due to motion
B. The speed of sound
C. Due to motion
D. Both of these
E. Neither of these
10: The pitch of a note has most to do with _________.
A. Frequency
B. Loudness
C. Decreases
11: At the ____________________ of a standing wave there is no displacement from the rest position
A. Outer
B. Node
C. Energy
D. Decibel
12: The difference between musical sounds and noise involves _______.
A. Irregular versus regular vibrations
B. Reduces exercise effectiveness
C. Alleviates boredom
D. Improves the specificity of exercise
13: The sound pressure level increases _______ as the decibel level increases from 40 to 80 dbs
A. 10 times
B. 5 times
C. 100 times
14: Timbre is often referred to as _________ color.
A. Tone
B. Frequency
C. Wavelength
D. Loudness
15: Each measurement of a sound wave is called a(n) ____.
A. Index
B. Sample
C. Metric
D. Cycle
16: A point on a standing wave that is always stationary is a(n) _____.
A. Maximum
B. Minimum
C. Node
D. Antinode
17: The vibrations along a sound wave move in a direction _______.
A. Perpendicular to the wave
B. Along and parallel to the wave
C. Both of these answers are correct.
D. Neither of these answers is correct
18: What most distinguishes noise from music is the presence of _________.
A. Regularity
B. Frequency
C. Both
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