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Chapter 4 Vocabulary

Work Force applied through a distance.
Machine A device that changes the force or increases the motion from work.
Simple Machine A machine that does work with only one movement of a machine.
Compound Machine A combination of two or more simple machines,.
Efficiency The ratio of output work to input work.
Mechanical Advantage The ratio of the output force to input force.
Energy The ability to cause change.
System Anything around which you can imagine a boundary.
Kinetic Energy Energy due to motion.
Potential Energy Energy that is stored due to the interactions between objects.
Elastic Potential Energy Energy that is stored by compressing or stretching an object.
Chemical Potential Energy Energy that is die to chemical bonds.
Gravitational Potential Energy Energy that is due to gravitational forces between objects.
Law of Conservation of Energy States that energy cannot be created or destroyed.
Mechanical Energy The sum of the kinetic energy and potential energy of the objects in a system.
Power The rate at which energy is converted.
Created by: 19inmmor