Energy+&+Change

**Heat Energy Transfer**
Students develop an understanding about the importance of heat energy to life on the planet and how it can be transferred, by: · Conduction · Convection · Radiation Test 1 Research Assignment 1

**Conductors/Insulators of Heat**
Students understand that some materials provide a barrier to heat transfer while others are termed ‘conductors’. The kinetic model should be discussed when referring to heat transfer.(This section should be attempted after the work on conduction, prior to convection.

**Colour/Texture Considerations**
Students investigate how the colour and texture (eg silver __v__ dark surfaces and smooth __v__ rough surfaces) affect heat transfer.

**Common Examples**
Students reflect on the principles of heat transfer and how it applies to the following: · Vacuum Flasks · Insulation in Houses · Solar Hot Water Systems Test 2

**Penetrating Power**
Students consider ways to impede or enable the transfer of energy in each of the following: · Nuclear Energy-in terms of alpha, beta and gamma rays. · Sound Energy-in terms of solids, liquids, gases and a vacuum. · Electrical Energy-in terms of conductors and insulators of electricity · Magnetic Energy-in terms of magnetic shields Test 3 Research Assignment 2

**Comparing Energy Sources**
Students consider several examples of energy sources, such as, wind, solar, wave, coal, petrol, uranium, etc and compare them in terms of the following; · Use · Cost · Effects on the Environment

**Energy Transformations**
Students consider several important energy conversions and trace the energy changes which occur, for example: · From a power station to household appliances · In a car engine producing movement of the wheels Test 4