Heat and Energy Transfer

Front

Conduction

Back

Heat transfer through direct contact

Front

Radiation

Back

Heat transfer through electromagnetic waves

Front

Heat effect on molecules

Back

Vibration and expansion

Front

Conduction in everyday cooking

Back

Cooking on a hob

Front

Convection process

Back

Heat rises to the top, example is the top of a gas oven is hotter than the middle.

Front

Example of convection in an oven

Back

Currents of hot air heat the food

Front

Example of radiation in cooking

Back

Heat from coals on a barbecue

Front

Infrared

Back

Type of radiant heat used in toaster and electric grill.

Front

Boiling process

Back

Rapidly bubbling liquid

Front

Cooking time for stewing

Back

Long and slow