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22 Cards in this Set
- Front
- Back
Energy
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Ability to do work
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Work
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Using a force to move an object a distance
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Kinetic energy
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Energy of motion
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Gravitational potential energy
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Energy stored due to gravity, relates to an object's postion
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Elastic potential energy
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Energy stored due to an object stretching, bending or flexing
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Thermal energy
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Total kinetic energy of the molecules in a substance
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Temperature
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Average kinetic energy of the molecules in a substance
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Heat
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Transfer of thermal energy
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Conduction
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Heat transfer by direct contact of molecule and transfer of kinetic energy by collisions of molecules
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Convection
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Heat transfer within a liquid or gas
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Radiation
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Heat transfer by light waves
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Fusion
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Stores energy by making two atoms into one
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Fission
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Releases energy by breaking one atom into two
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Nuclear energy
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A form of potential energy that holds an atom together
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Chemical energy
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A form of potential energy that holds one atom to another inside a molecule
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1st law of thermodynamics
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Thermal energy can not be created or destroyed, it moves from one object to another
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2nd law of thermodynamics
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Thermal energy is transferred from a high temperature object to a lower temperature object
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3rd law of thermodynamics
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Nothing will ever reach absolute zero
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Absolute zero
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The theoretical temperature at which all molecules stop moving, coldest possible temperature
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Thermal equilibrium
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When objects increase and decrease in temperature so that eventually they are all have the same amount of thermal energy and the same temperature
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Thermal expansion
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The tendency of object's to increase in size as their temperature increases
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Specific heat
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Energy required to increase the temperature of 1kg of material 1 degree Celsius
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