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unit 2 energy

science

TermDefinition
work the transfer of energy to an object by using a force that causes the object to move in the direction of the force
energy the ability to cause change
power the rate at which work is done or energy is transformed
kinetic energy the energy of an object that is due to the objects motion
potential energy the energy that an object has because of the position, condition, or chemical composition of the object
mechanical energy the sum of an objects kinetic energy and potential energy due to gravity or elastic deformation; does not include chemical energy or nuclear energy
machine a device that helps do work by changing the magnitude and/or direction of an applied force
mechanical advantage a number that tells how many times a machine multiplies input force
mechanical efficiency a quantity, usually expressed as a percentage, that measures the ratio of work output to work input in a machine
lever
fulcrum
wheel and axle
pulley
inclined plane
Created by: angelrosario
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