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Sound Review
Test Description: Physics Review
Instructions: Answer all questions to get your test result.
1) What is pitch directly related to?
A
Intensity
B
Resonance
C
Frequency
D
Ultrasonic
2) What is another word used to describe the loudness of a sound?
A
Infrasonic
B
Intensity
C
Frequency
D
Ultrasonic
3) What is the lowest frequency of vibration, or first harmonic, in a musical tone?
A
Harmonic frequency
B
Ultimate frequency
C
Fundamental frequency
D
Intense frequency
4) Sound that has a frequency lower than 20Hz is called what?
A
Infrasonic
B
Ultrasonic
C
Beats
D
Hertz
5) Sound that has a frequency higher than 20,000Hz is called what?
A
Ultrasonic
B
Beats
C
Infrasonic
D
Compression
6) An area of high pressure or high density is called what?
A
Rarefaction
B
Resonance
C
Beats
D
Compression
7) An area of low pressure or low density is called what?
A
Compression
B
Rarefaction
C
Resonance
D
Beats
8) This is the response of a body when a forcing frequency matches its natural frequency.
A
Compression
B
Fundamental frequency
C
Resonance
D
Quality
9) What are series of alternate reinforcements and cancellations called?
A
In Phase
B
Doppler Effect
C
Longitudinal
D
Beats
10) What type of waves are sound waves?
A
Alternating
B
Longitudinal
C
Echo
D
Standing
11) In what medium does sound travel the fastest?
A
Transverse Wave
B
Liquid
C
Stationary
D
Solid
12) The threshold of hearing occurs at what decibel level?
A
-10 dB
B
10 dB
C
0 dB
D
5dB
13) How do standing waves appear?
A
Transverse
B
In Phase
C
Stationary
D
Beats
14) Constructive interference is another way to describe waves that are in what?
A
Transverse
B
Stationary
C
Beats
D
In Phase
15) What is an observed change in frequency when there is relative motion between the source of waves and an observer?
A
Beats
B
Echo
C
Decibles
D
Doppler Effect
16) How does an object sound when it’s moving towards you?
A
Inaudible (pitch)
B
High (pitch)
C
Low (pitch)
D
None of the above, the pitch can't be determined
17) What is it called when 2 waves meet while traveling along the same medium?
A
Rarefaction
B
Interference
C
Amplitude
D
Echo
18) A 256Hz and 260Hz tuning fork are sounded at the same time. What is the beat frequency heard?
A
0Hz
B
6Hz
C
2Hz
D
4Hz
19) A 256Hz and 260Hz tuning fork are sounded at the same time. What is the pitch that you would hear?
A
250Hz
B
258 Hz
C
264Hz
D
6Hz
20) Musical tones have 3 characteristics: pitch, frequency, and what?
A
sound
B
tone
C
beat
D
quality
*select an answer for all questions
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