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Two sound waves have equal frequencies and amplitude of 600 Hz and 0.25 mm, respectively. What will be the frequency if it undergoes interference?
600 Hz
Two sound waves have equal frequencies and amplitude of 600 Hz and 0.25 mm, respectively. What will be the amplitude if it undergoes interference?
0.50 mm
TRUE or FALSE: The more vibrations that wave contain, the lower the pitch will be.
FALSE
Which describes frequency?
 
the number of time the particles move
 
the minimum distance that particles move
 
the maximum distance that particles move
 
the direction that the particles move
The equipment used to visualize waveform is called
osciloscope
Which will cause the pitch to increase?
 
increase the number of vibrations
 
decrease the number of vibrations
 
make the wave larger
 
make the wave smaller
Which will cause the sound to get louder?
 
reinforcement of wave
 
cancellation of wave
 
reflection of wave
 
refraction of wave
The term used for the lower part of the wave
trough
The term used for the upper part of the wave
peak / crest
What is the range of frequency that a human ear can detect?
 
20 - 20 000 Hz
 
15 - 15 000 Hz
 
10 - 10 000 Hz
 
25 - 25 000 Hz
Give a use for destructive interference.
Noise cancelling headphones
Give a use for constructive interference.
speaker positions in concerts/theaters
What does 250 hertz mean?
the particles vibrates 250 times per second
A sound wave causes particles to vibrate 150 times in two seconds. What is its frequency?
75 Hz
What happens to the pitch when the frequency decreases?
The pitch decreases
What happens to the pitch when the amplitude increases?
it stays the same
the term used when two waves subtract
constructive interference
The term used when two waves add
reinforce/ constructive interference
The distance between one peak to one peak or one trough to one trough
wavelength
What happens to the amplitude of the wave when it undergoes destructive interference?
it becomes smaller/it cancels out
What happens to the frequency of the wave when it undergoes constructive interference?
it stays the same
This refers to the number of waves per second
frequency
This refers to the size of the wave
Amplitude
The adding or substracting of wave when they meet
interference
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