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How do you measure a wave's amplitude?
What is amplitude? How are wave's measured?
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M$1 Answer
In Physics, amplitude is the height of a wave. It is a value which tells us how big the wave actually is. This can be a sound, light or any other wave.
If we talk about the scientific definition of the term amplitude, it can be stated as:
"The magnitude of change in the oscillating variable with each oscillation within an oscillating system."
In easy words it is "the maximum positive displacement from the undisturbed position of the medium to the top of a crest (of a wave)".
To measure the amplitude of a wave, we have to take into consideration the distance between the trough or crest of a wave and its mid line. It is actually the measure of energy that is used in making the wave. The higher the energy, the bigger the wave and higher the value of wave’s amplitude.
The following link shows the amplitude with an animated illustration:
http://www.schools.utah.gov/curr/science/core/8thgrd/sciber8/forces/html/WAVENRGY.HTM
Hope it helps!
Sources:
http://en.wikipedia.org/wiki/Amplitude
http://zonalandeducation.com/mstm/physics/waves/partsOfAWave/waveParts.htm
If we talk about the scientific definition of the term amplitude, it can be stated as:
"The magnitude of change in the oscillating variable with each oscillation within an oscillating system."
In easy words it is "the maximum positive displacement from the undisturbed position of the medium to the top of a crest (of a wave)".
To measure the amplitude of a wave, we have to take into consideration the distance between the trough or crest of a wave and its mid line. It is actually the measure of energy that is used in making the wave. The higher the energy, the bigger the wave and higher the value of wave’s amplitude.
The following link shows the amplitude with an animated illustration:
http://www.schools.utah.gov/curr/science/core/8thgrd/sciber8/forces/html/WAVENRGY.HTM
Hope it helps!
Sources:
http://en.wikipedia.org/wiki/Amplitude
http://zonalandeducation.com/mstm/physics/waves/partsOfAWave/waveParts.htm
images:
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