1. How is Energy Transferred?

2. Radiation animations of heat transfer Emission and transfer of energy by means of electromagnetic waves Method of heat transfer from the sun through space to the earth. Since there is little matter in outer space there isn’t anything to warm up and space is cold.

3. How Does the Atmosphere Affect the Transmission of EM Energy from the Sun? 50% of the sun’s radiation is lost to the upper atmosphere (almost all of the shorter wavelengths) Clouds and dust particles also reflect and absorb some of the radiation (20% is absorbed and 30% is reflected back into space.

4. Convection Transfer of heat through fluids (liquids and gases) due to density differences. Responsible for transfer of heat in the: Responsible for transfer of heat in the: – Asthenosphere – Atmosphere – Oceans

5. Heated fluid becomes less dense and rises As the fluid moves away from the heat source it cools becomes more dense and sinks

6. Conduction Transfer of heat through solid matter by direct contact. Warmer atoms vibrate and transfer their energy to cooler atom The hot objects acts as the source and the cooler object are the sink. Energy always flows from the source to sink acts as the source and the cooler object

7. The hot coffee is the source the cooler spoon is the sink. The heat is transferred from the coffee to the spoon