Sound Intensity

Quiz
•
Physics
•
11th - 12th Grade
•
Hard
Standards-aligned
Charles Martinez
FREE Resource
7 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
15 mins • 1 pt
The measured intensity of sound depends on both the distance from the source and the _____ of the sound source.
frequency
power
pitch
wavelength
Tags
NGSS.HS-PS4-1
2.
FILL IN THE BLANK QUESTION
30 sec • 1 pt
An amplifier puts out a maximum of 150 W of power. What is the intensity of the maximum output of power at a distance of 5.0 m from a speaker?
3.
FILL IN THE BLANK QUESTION
30 sec • 1 pt
An amplifier puts out a maximum of 150 W of power. What is the intensity of the maximum output of power at a distance of 15.0 m from a speaker?
Tags
NGSS.HS-PS4-1
NGSS.HS-PS4-5
4.
FILL IN THE BLANK QUESTION
30 sec • 1 pt
A set of earbuds is emitting a sound with an intensity of 2.3 x 10-6 W/m2 at a distance of 0.35 cm from a person's eardrum. What is the amount of power that the earbuds are emitting?
5.
FILL IN THE BLANK QUESTION
30 sec • 1 pt
A person experiences a sound intensity of 1.5 x 10-3 W/m2 from a lawn mower and the mower has an output of 2.1 W of sound power. How far away from the mower is person?
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A pair of hearing protecting headphones have a decibel reducing rating of 25 dB. By what factor are the headphones reducing a sound's intensity? Choose the best answer.
2.5
100
200
250
300
Tags
NGSS.HS-PS4-1
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
An amplifier increases a sounds intensity from 1.0 x 10-9 W/m2 to 1.0 x 10-3 W/m2. What would be the closest increase in decibel level of the sound?
30
60
1,000
1,000,000
Tags
NGSS.HS-PS4-5
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