Heat and Thermodynamics

The 1st law of Thermodynamics

• Energy can not be created or destroyed. It just changes forms.

• Energy can only be created by the sun

• Some energy is lost to the environment.

2nd law of thermodynamics

• Every time energy changes form, some of it is lost to the environment

• Energy can't be created or destroyed

• All energy generates heat

Specific Heat

• the amount of energy it takes to raise one kilogram of a substance by one degree Celsius

• The internal energy of an object

• The measure of the kinetic energy of an object's molecules

Thermal Energy is...

• The internal energy of an object

• The temperature of a solid object

• Heat transfer through a liquid

Conductor

• A material that thermal energy travels through easily

• A material that energy does NOT transfer through easily

• Energy that travels in the form of electromagnetic waves

Insulator

• A material the energy does NOT transfer through easily

• A material that thermal energy travels through easily

• The measure of the kinetic energy of an object’s molecules

Conduction

• The transfer of thermal energy through solids

• The transfer of thermal energy through liquids and gases

• The transfer of thermal energy as electromagnetic waves

Convection

• The transfer of thermal energy through liquids and gases

• The transfer of thermal energy through solids

• The transfer of thermal energy as electromagnetic waves

Radiation

• The transfer of thermal energy as electromagnetic waves

• The transfer of thermal energy through solids

• The transfer of thermal energy through liquids and gases

The variable foe HEAT

• Q

• C

• T