What is the difference between magnitude and intensity in physics?

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In summary, the difference between magnitude and intensity is that magnitude is a measure of size or quantity while intensity is a measure of energy flux. Intensity is not commonly used in physics and has a specific definition that involves multiplying energy density by velocity.
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samar
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May i know the difference...

Hello,how are you all?

i want to know the main differnce between magnitude and intensity with example?

regards

samar
 
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  • #2
samar said:
Hello,how are you all?

i want to know the main differnce between magnitude and intensity with example

Hello samar! :smile:

I'm very well, thankyou. How are you?

erm … the difference between magnitude and intensity of what? :smile:
 
  • #3
magnitude and intensity not of anything...just magnitude n intensity...like of atom?
 
  • #4
… wikipedia again … !

Hi samar! :smile:

Intensity isn't normally used in physics, and when it is, it has a very particular meaning … see http://en.wikipedia.org/wiki/Intensity:
In physics, intensity is a measure of the time-averaged energy flux. The word "intensity" here is not synonymous with "strength", "amplitude", or "level", as it sometimes is in colloquial speech. For example, "the intensity of pressure" is meaningless, since the parameters of those variables do not match.
To find the intensity, take the energy density (that is, the energy per unit volume) and multiply it by the velocity at which the energy is moving. The resulting vector has the units of power divided by area (i.e. watt/m²).

Have you come across it in some book? :smile:
 

FAQ: What is the difference between magnitude and intensity in physics?

What is the difference between knowledge and information?

The main difference between knowledge and information is that knowledge refers to the understanding and awareness of a subject or topic, while information is the data or facts about a subject or topic. Knowledge involves critical thinking and the ability to apply information, while information is simply the data itself.

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