1. 2.2 Thermal Energy Transfer

2. Thermal Energy Transfer
It occurs when energy from an area of high temperature moves to an area of low temperature
There are 3 types:
Radiation
Conduction
Convection

4. Radiation Travels as waves (E.g. sun)
energy is absorbed and increased their temperature

5. Conduction Occurs in solids By direct contact
Particles near heat gain energy and transfer to particles with less energy

6. Convection Is the movement of particles in liquids or gases
Heated particles are less dense and rise
They cool and become more dense and sink
Movement is always warm to cold

7. in the above diagram the cold air coming in from the lake is causing a breeze to blow into shore
as sunset approaches the convection current reverses as the land begins to cool much faster than the water

8. Atmospheric Pressure
Is pressure exerted by the mass of air above any point on Earth’s surface

9. Wind
Is the result of air moving from areas of high pressure to areas of low pressure

10. Global Winds Are created by: Types: Convection currents
Coriolis effect
Types:
Tradewinds
Westerlies
Easterlies

11. A. Convection Heated air is less dense and rises in the atmosphere
Cool air rushes it to replace this air
In the atmosphere the warm air cools, becomes more dense and sinks

12. B. Coriolis Effect It is caused by the rotation of the earth
Cause air that moving away from the equator to be deflected (bends)
Air masses:
in the north bend right
in the south bend left

13. Jet Streams
Are a fast moving band of air in the Stratosphere (where less friction occurs)
Are affected by temperature and convection currents (e.g. faster near the equator)
Changes affect weather