Thermal Energy Transfer Project
By: Megan Burnett
Conduction:
Conduction is the transfer of heat that occurs when two objects of different temperatures touch. Conductions occurs in solids, like metals. Metals is a good conductor of heat
Examples:
- A skillet on a stovetop becomes very hot due to conduction.
- Touching a metal spoon sitting in very hot chocolate.
- Picking up a cup of hot coffee or something that came out of the microwave.
Convection
Convection occurs when substances of different temperatures mix. When a liquid or gas is heated it expands. It rises because it has become less dense. In liquids and gases convection is the best way to transfer heat.
Examples:
- Macaroni rising and falling in a pot of boiling water.
- Putting your wet shoes on a floor vent to dry them faster
- Meat is frozen, you thaw out more quickly by being placed over running water.
Radiation
Radiation is the transfer of heat by electromagnetic waves. Radiation travels through empty space. Sunlight is a form of radiation. It travels through space to our planet without the aid of fluids or solids.
Examples:
- Putting your cold hands over the warm fire
- Getting a nice tan under the hot sun
- Grilling hamburgers over a charcoal flame.
Compare and Contrast
- Conduction and Convection require a medium to transfer heat.
- They can all transfer thermal energy.
- Using a skillet or pot Conduction, Convection, and Radiation are all taken place