Welcome to the Quiz!
This quiz contains 10 questions from a mix of 1 subtopics.
What is the definition of intensity in relation to waves?
a measure of the energy transported by a wave through a unit area
a measure of wavelength
a measure of wave speed
a measure of wave frequency
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What equation is used to calculate intensity?
I = P ÷ A
I = P × A
I = P ÷ f
I = Af
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If the amplitude of a wave is doubled, by what factor will the intensity increase?
3 times
8 times
2 times
4 times
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Which of the following best describes the relationship between intensity and amplitude?
no relationship
directly proportional
inversely proportional
intensity is proportional to the square of amplitude
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As the distance from a sound source increases, what happens to the intensity according to the inverse square law?
intensity stays the same
intensity first increases then decreases
intensity decreases rapidly
intensity increases rapidly
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What aspect of a wave relates to its perceived brightness or loudness?
wavelength
frequency
amplitude
intensity
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As distance from a sound source increases, intensity:
increases
decreases rapidly
decreases slowly
stays the same
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If power remains constant but area increases, what happens to intensity?
intensity increases
intensity remains constant
intensity first increases then decreases
intensity decreases
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What is the term used to describe the perceived loudness or brightness of a wave?
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Give 3 factors that determine the intensity of a wave.
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