Topic+8+(Topic+5+review)

Topic 5 circuits (last two weeks of october)
 * The GRID
 * related to the grid we should review Electric current and resistance
 * 5.1.5 Define electric current. 1 It is sufficient for students to know that current is defined in terms of the force per unit length between parallel current-carrying conductors.
 * 5.1.6 Define resistance. 1 Students should be aware that R = V/I is a general definition of resistance. It is not a statement of Ohm’s law. Students should understand what is meant by resistor.
 * 5.1.7 Apply the equation for resistance in the form R=pL/A where p is the resistivity of the material of the resistor.
 * 5.1.10 Derive and apply expressions for electrical power dissipation in resistors.
 * 5.2.2 Describe the concept of internal resistance.
 * 5.2.3 Apply the equations for resistors in series and in parallel. This includes combinations of resistors and also complete circuits involving internal resistance.
 * 5.2.4 Draw circuit diagrams. 1 Students should be able to recognize and

Topic 8: Energy, Power and Climate Change (some Topic 3) 18 hours