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Chapter 13 Vocab

physical science

TermDefinition
efficiency ratio of the output work done by the machine to the input work done on the machine, expressed as a percentage
kinetic energy energy a moving object has because of its motion; determined by the mass and speed of the object
potential energy energy that is stored due to the interactions between objects
energy the ability to cause change, measured in joules
compound machine machine that is a combination of two or more simple machines
simple machines machine that does work with only one movement; examples include lever, pulley, wheel and axle, inclined plane, screw, and wedge.
mechanical advantage (MA) ratio of the output force exerted by a machine to the input for applied to the machine
power rate at which energy is converted; measured in watts
work transfer of energy when a force is applied over a distance; measured in joules
Created by: hmcelreath
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