HEAT

THE DEFINITIONS OF HEAT

• Heat- the total kinetic energy of the molecules in an object
• Heat transfer- a process of energy transfer from one object to another
• (From the hotter object to the colder object)

3 METHODS OF HEAT TRANSFER

• Conduction
• Convection
• Radiation

CONDUCTION

• Transfer of heat through touching objects
• Examples:
• Cooking food in a pan
• Holding a spoon above a candle
• Requires matter, an object

CONVECTION

• Transfer of heat through fluids
• Examples:
• Boiling water
• Fire heating up a room
• Requires fluids such as liquid or a gas

RADIATION

• Transfer of heat through rays or waves
• Examples:
• The sun
• Microwave
• Does not require matter