NEWTONS LAW OF GRAVITY
INFORMATION
* any two bodies in the universe attract each other with a force that is directly proportional to the product of their masses and inversely proportional to the square of the distance between them. * Where:
* G is a constant. |
PRACTICE PROBLEMS
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INVERSE-SQUARE LAW
INFORMATION
* any physical law stating that a specified physical quantity or intensity is inversely proportional to the square of the distance from the source of that physical quantity. * If you double the distance between the light and the subject, you need four times as much light to get the same exposure. *If you reduce the distance between the light and the subject by half, you only need one quarter as much light to have the same exposure. Here’s another example: |
Experiment Ideas
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Coulomb's Law