Balloons and Static Electricity
Describe the behaviour of bodies with like and unlike charge
Explain the concepts of electrostatic charging and charge polarisation
State Coulomb's Law and identify the variables involved
Discuss Coulomb's Law in terms of proportionality and inverse proportionality
Use Coulomb's Law to calculate the force between two charges
Explain the concept of electric fields and their representation by electric field lines
State that there are no electric fields found inside conductors
Identify that electric fields tend to gather at sharp points
Draw electric field lines around one or two point charges, a conductor, or between two plates
Compare the directions of conventional current and electron flow in a circuit
State Ohms' Law and identify the variables involved
Use Ohms' Law to solve problems involving a voltage, resistance and current
Solve problems using power, voltage and current
Calculate the total resistance in circuits with resistors in parallel and/or series
Explain the concept of magnetic fields and their representation by magnetic field lines
Use the right hand curl rule to draw the magnetic field produced by current in a wire
Use the right hand palm rule to identify the direction of force on a wire carrying a current placed in a magnetic field
Solve problems involving the force on a wire in a magnetic field, the angle of the wire to the field, the current flowing in the wire, the strength of the field and the length of wire in the field
Describe and explain an electromagnet
Compare the function of a motor and a generator