Upon completion of chapter 20, students will be able to:

o    Analyze factors that affect the strength and direction of electric forces and fields.

o    Describe how electric forces and fields affect electric charges.

o    Describe how electric charges are transferred and explain why electric discharges occur.

o    Describe electric current and identify  the two types of current.

o    Describe conduction and classify materials as good electrical conductors or good electrical insulators.

o    Describe the factors that affect resistance.

o    Analyze circuit diagrams for series circuits and parallel circuits.

o    Solve equations that relate electric power to current, voltage, and electrical energy.

o    Explain how electronics conveys information with analog or digital signals.

o    Describe electronic devices used to control electron flow.