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Module 2

Mechanical Energy

TermDefinition
Kinetic energy The energy due to motion
Potential energy Energy due to interactions between objects or particles when distance changes Stored energy
Elastic potential energy Energy stored in objects that are compressed or stretched
Gravitational potential energy Stored energy due to interactions of objects in a gravitational field
Mechanical energy The sum of the potential energy and kinetic energy in a system
Law of conservation of energy States that, although energy is always transferring from one form to another energy is not created or destroyed
Work The transfer of energy to an object by a force that makes an object move in the direction of the force; force applied over distance
Power The rate at which work is done
Mechanical advantage The ratio of a machines output, force produced to the input force applied
Efficiency And the ratio of output work to the input work
Simple machine A machine that does work using only one movement
Created by: Jergertigers
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