Unit 12: Electrical Energy and Circuits

Major Concepts For this Unit

Understand and use the terms electric potential, potential difference, and voltage

Understand how the above terms relate to electrical potential energy, work, and electric field

Understand relationship between work, potential energy, kinetic energy, force, speed, and acceleration

Understand current, resistance, and power

Understand and use Ohm's Law

Understand how the rollercoaster model may be used to explain the relationship between current and voltage in series and parallel circuits

Understand how to dertermine total resistance, currents, voltages, and power for different parts of a series and parallel circuit

Understand the relationship between the units of Volts, Joules, Amps, Coulombs, Newtons, Watts, Ohms, and KiloWattHours

Roller Coaster Model Notes and Problems

Roller Coaster Model of Series Circuit

Watch the TWO videos below and answer the questions in the survey below. The slides from the video are also available below.

Although it may be difficult to tell from the video, the battery's voltage is 10 Volts, R1 is 2 Ohms, and R2 is 3 Ohms. The answers to the questions asked in the Part II video go in the google survey form below.

Google Survey Form for Series Part II Answers

While watching Part II, put your answers on the following form.

https://goo.gl/forms/VbqzKKiRMiOYdcWv2

Slides from Series Roller Coaster

Series Circuit Virtual Lab

The video below uses real data to test the rules about voltage, current, and resistance in a series circuit.

While watching the video write the data on a piece of paper and place the answers in the google form below the video. The slides are also below the video.

Google Survey Form for Series Circuit Virtual Lab Video

After watching the series circuit lab video above answer the questions in the form below.

https://goo.gl/forms/BsuUQmEenGTDtsWy2

Slides from Series Circuit Virtual Lab

Roller Coaster Model of Parallel Circuit

Watch the two videos below and answer the questions in the form below

Google Survey Form for Answers to Questions In Parallel Part II

https://goo.gl/forms/OOqbHCJoVatG6RYP2

Slides from Roller Coaster Parallel Circuit

Parallel Circuit Virtual Lab

The video below uses real data to test the rules about voltage, current, and resistance in a parallel circuit.

While watching the video write the data on a piece of paper and place the answers in the google form below the video. The slides are also below the video.

Place answers to lab here after watching the video.

https://goo.gl/forms/J5vSrwXhK8ZCenhs1

Slides from lab

Hand Written Roller Coaster Notes

For those who prefer to read about the models

Review Sheet and Electrical Energy Worksheet

Prob 8 from RS:

• 36,000,000 J

Additional problem:

A 100 Watt light bulb is on for 2 hours a day for 31 days.

• How many kiloWatt*Hours is this?
  • ans- 6.2 KiloWatt*Hours
• How many Joules is this?
  • ans - 22,320,000 J
• If the electric company charges $0.20 per KiloWatt*Hour, how much will this cost?
  • $1.24