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22 Cards in this Set

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