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Science4a

QuestionAnswer
What is energy? The ability to do work
What is work? The ability to move an object through distance
What are the 2 types of energy? Kinetic and Potential
What is Kinetic Energy? the energy of motion that depends on speed and mass
How to calculate Kinetic Energy? KE= .5x mv(squared)
What is Potential Energy? Stored energy as a result of position or shape
What are the 2 types of potential energy? Gravitational and Elastic
How to calculate Potential Energy? PE= MxGxH
What are the 7 forms of energy? Mechanical, Thermal, Chemical, Electrical, Electromagnetic, Nuclear, and Sound
Can energy be created or destroyed? No
What is Heat? The transfer of thermal energy from one object to another because of a temp. difference
What is specific heat? The amount of heat needed to raise the temperature of one gram of material by 1 degree Celcius
What is the formula for Specific Heat? Q=MxCx(delta)t
What is an Electric Generator? A device that converts mechanical energy into electrical energy by rotating a coil of wire in a magnetic field.
What are sources of energy? Hydroelectric, nuclear energy, wind, natural gas, petroleum
What are electric forces? The attraction or repulsion of electrically charged objects
What is friction? Charge transferred when 2 objects rub together
Define: Contact Charge transferred by touch
Define:Induction Transfer of charge without touching
Created by: tthay13
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