9th#9 Crossword
                     
                     
                     
                     
                     
                     
                     
                     
                     
                     
                     
                     
                     
                     
                     
                     
                     
                     
                     
 
 
Down: 2) the energy of a moving object due to its motion3) the sum of the kinetic and potential energy of large-scale objects in a system5) a quantity, usually expressed as a percentage, that measures the ratio of useful work output to work input8) a quantity that measures the rate at which work is done Across: 1) a quantity that measures the effects of a force acting over a distance4) a machine made of more than one simple machine6) a quantity that measures how much a machine multiplies force or distance7) one of the six basic types of machines ow which all other machines are composed9) the stored energy resulting from the relative positions of objects in a system
 

 

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