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Sound
Test Description: 26.9-26.10
Instructions: Answer all questions to get your test result.
1) The compression of a wave would correspond to which part on a transverse wave?
A
crest
B
trough
C
amplitude
D
wavelength
2) When constructive interference occurs in sound waves, the listener will hear a ___________ sound.
A
softer
B
louder
3) Beats are produced from sound
A
reflection
B
refraction
C
interference
D
resonance
4) Beats can be heard when 2 tuning forks
A
are sounded together
B
have the same frequency and are sounded together
C
have almost the same frequency and are sounded together
5) Noise canceling headphones are an example of
A
destructive interference
B
beats
C
resonance
D
constructive interference
6) When destructive interference occurs in sound waves, the listener will hear (a) ___________ sound.
A
softer
B
louder
C
no
7) Forks with frequencies of 260 Hz and 267 Hz are sounded together. The frequency of the beats is
A
527 Hz
B
267 Hz
C
7 Hz
D
260 Hz
8) If you are standing equally spaced from 2 speakers that are emitting the exact same sound waves, the sound
A
is louder due to constructive interference
B
is quieter due to constructive interference
C
is louder due to destructive interference
D
is quieter due to destructive interference
9) How many times a minute will you be in step with a friend when you walk 77 steps per minute and they walk 65 steps per minute?
A
0
B
6
C
12
D
142
10) 2 tuning forks are sounded together to produce a beat frequency of 13 Hz. One tuning forks frequency is 218 Hz. What is the other tuning forks frequency?
A
233 Hz
B
232 Hz
C
231 Hz
D
230 Hz
*select an answer for all questions
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