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January 31, 2015

January 31, 2015

Posted by **Maddison** on Saturday, April 24, 2010 at 8:17pm.

First of all I am BAD at explaining things, and when you don't know the answer it is even harder!!!

You dont have to answer the question for me, just explain why it gets less and less bright! Thanks sooo Much!

- Science Grade 8 -
**DrBob222**, Saturday, April 24, 2010 at 8:26pmThe intensity varies (changes) as a function of the inverse square. Here is an example.

If the light intensity is simple units is, say, x, then a double the distance the intensity will be 1/2^{2}= 1/4 the initial. Triple the distance will be 1/^{3}= 1/9 the original and quadruple the distance will be 1/42^{ = 1/16 the original. } - Science Grade 8 -
**DrBob222**, Saturday, April 24, 2010 at 8:28pmMy superscripts didn't do well. Let me try again.

1/2^{2}= 1/4

1/3^{2}= 1/9

1/4^{2}= 1/16

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