Set up, discuss, and analyze serious and parallel circuits. Measure and discuss voltage, current, and resistance for both series. Physics lab manual

Review definitions of a circuit and how electron charges travel and expend energy.
Discuss and define electric power as a rate of conversion. Introduce power as current in amps x voltage in volts. Discuss how the power is converted into other forms of energy. Introduce the Watt and Kilowatt/hour. Present and solve problems based on power, current, voltage and resistance.

Define electrons moving in a circuit and relate that to electrons expanding energy which is then able to do work.. Define electric power as a rate at which electric energy is converted into into another form. Introduce the formula to determine power as the current in amps x the voltage in volts. Define the unit as Watts. Write the formula to be able to solve for power, current, and voltage. Define a kilowatt as used by the electric companies.

Discuss how AC and DC electric current differs electron movement. Discuss how AC and DC differ in production and ability to travel along a wire. Use a schematic sketch of a generator and discuss how it operates. Show how to convert AC to DC. Discuss the advantage of AC for proprietary use and long range current. Introduce step-up and step-down transformers, show schematic sketches of each and discuss how each is utilized. Introduce electric power and energy

Introduce AC and DC current. Define and discuss the differences. Discuss the history of AC and DC current used commercially. Discuss the use of capacitors and alternators to change DC into AC. Introduce step-up and step-down transformers and how each one
changes voltage. View schematic diagrams of both types. Discuss why AC is preferred over DC for commercial and household use. Relate the history between Edison and Tesla.

Introduce and solve some problems which require the use of Ohms law to solve. Discuss why amperage can be drastically different between a light bulb and a toaster, both using the same electric source. Introduce DC and AC current, discuss the differences and determine why a battery is direct current.

Based on the lab, discuss Ohm's law as it relates to current, voltage, and resistance. Write Ohm's law as a mathematical expression to solve for current and voltage. Show an Ohm's law diagram useful for determining how to solve for the missing factor. Discuss what causes electric shock and how resistance differs between a dry and wet body.

Lab to investigate parallel and series circuits. Voltage, current, and resistance is measured using 1-3 resistances (light bulbs). Tables are designed to list the measured amps and voltage for each set of resistors, and the resistance calculated using Ohms. The effect on the voltage, current and resistance for each circuit is determined.

Investigate how current varies with voltage and resistance. Set up involved a voltage supply(batteries) this and thick wire, switch and bulbs. Brightness of the bulb under varying conditions was the criteria to determine voltage difference. Discuss how the thickness of the wire affects the voltage and resistance. Examine how the length of the wire affects the resistance and the voltage.

Define and discuss electrical resistance. Discuss factors which will affect the resistance in a circuit. Include wire thickness, length, and temperature. Derive the relationship between current, voltage and resistance. Show how amps are directly proportional to voltage and inversely proportional to resistance. Discuss in what ways change in voltage will create changes in current. introduce unit terms needed to solve problems.