forceless

Science Dictionary
force   (fôrs)  Pronunciation Key 
  1. Any of various factors that cause a body to change its speed, direction, or shape. force is a vector quantity, having both magnitude and direction. Contributions of force from different sources can be summed to give the net force at any given point.

  2. Any of the four natural phenomena involving the interaction between particles of matter. From the strongest to the weakest, the four forces are the strong nuclear force, the electromagnetic force, the weak nuclear force, and gravity.


The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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