Show the video which depicts a simple series circuit. View a schematic of a simple series circuit and discuss why it is classified as a series circuit. Show how the total resistance in a simple circuit is determined, and once determined, use Ohm's law to calculate the current and/or voltage. Show why circuits in series are not used to light houses.

Review of definitions and terms used in electricity... These include voltage, current, and resistance. Discussion of the relationship between all three in an electric circuit. Presentation of Ohm's law in simple equation format and also in a diagram format. Solve a simple ohms law problem to determine current given voltage and resistance. Discuss the meaning of an electric circuit, from images, explain the different symbols used in a schematic diagram of a circuit.

Review the concepts of voltage, volts, current, amperage, resistance, and ohms. Discuss how they relate to each other. Discuss Ohm's law, view images of Ohm's law diagrams and solve easy problems. Introduce the concept of electric circuits in general and series circuits in particular.

Review the concepts of voltage and current in an electric circuit.
Define resistance to the flow as opposition to the movement of the electrons. Discuss and explain factors which will affect the resistance to flow. These include the thickness of the wire conductor, the length of the wire conductor, and the temperature of the wire conductor. Demonstrate all three using a video depicting a clear tube as a wire and marbles as the electrons.

The topic of current and amperes was introduced using a short video depicting how current flows through a conductor. A coulomb of charge was defined and explained in terms of electrons, and the unit of measurement, the ampere, or amp, was introduced. A voltage source was shown to provide a sustained current by acting like a voltage pump.

Definition of current electricity...Discuss how the flow of electrons moves through a conductor and the meaning of potential difference. Demonstration, by video, of the flow of electrons from a high to low potential. The definition and explanation of volts and voltage...How a battery supplies the energy for current to flow.

Review and expand on voltage difference, volts and electrical energy. Discuss resistance to flow of electrons and compare to resistance to flow of water through different circumference pipes. The unit of measurement of resistance is the Ohm. Discuss current flow as the number of electrons passing a given point on a conductor in one second. Compare current flow of electricity to the flow of water in a stream or through pipes. Indicate the factors which will influence flow and resistance. The flow of current is measured in amps.

We reviewed the concepts of potential energy and electrical potential energy. We discussed the unit of measurement of the electric potential as the volt. The volt was shown to be an amount of energy/unit of charge ( joules/coulomb). The electric potential difference is commonly referred to a voltage, measured in volts.
The potential difference is the difference in voltage between terminals on a battery. The voltage supplies the energy needed to push electrons through a circuit, and do work (light a bulb).

Review of magnetic and gravitational field... The electric field surrounding a charge was visualized using an image, with the magnitude and direction determined by the arrows associated with the field. Gravitational potential energy was reviewed, and electric potential energy shown to be the energy a charge has due to its location in an electric field. The electric potential energy can be increased by doing work to move a charge against a field.

The magnetic filed and the gravitational field were discussed and reviewed as a lead into the electric field. They were shown to be forces acting at a distance. The charges on atomic particles were reviewed, and the attraction and repulsion of charged particles shown also to exist as force at a distance. The concept of an electric field was used to describe the force. That the force was a vector quantity was explained, and a short video used to help visualize the concept of the field.