Voltage+and+energy

9I Buying energy

Voltage and energy
Recall the units for measuring voltage. Explain how to measure voltage. Explain what voltage is. Describe how the voltage in a series circuit is divided between the components.
 * Outcomes (what you will be able to do by the end of this lesson) **


 * Starter**
 * Key term quiz
 * Review homework and completed work from last lesson

> - Write down the definition of voltage in your exercise book > - answer Qs 2, 3 from p110-111 of Exploring Science 9
 * Activities**
 * 1) Optional: Don't remember much about circuits? If you are not sure try the card sort on [[file:ES9_CHAP_Ic3.pdf|Revising electricity]] to check and review your understanding.
 * 2) What is the difference between a battery and a cell? Discuss.
 * 3) How is current affected by voltage using the outline [[file:ES9_CHAP_Ic2.pdf|Voltage and current]] investigate and find out. Need to review how current and voltage are measured? Read the [|BBC Bitesize summary].
 * 4) Now extend your investigation to test voltage at different points in circuits with multiple bulbs and cells. Design 3 different simple circuits and record the voltages across each component and groups of components. Ask for guidance if you are not sure what to do.
 * 5) What is voltage? discuss and define.
 * 1) Create your own set of [[file:ES9_Ic111_02msu.doc|voltage rules]] using the diagrams and guidelines on the worksheet.
 * 2) Extension: What are Watts? Read the [[file:ES9_CHAP_Ic7.pdf|worksheet]], answer the questions and find out.


 * Summary**
 * In small groups answer the questions from [[file:ES9_CHAP_Ic4.pdf|Electricity true/false]]. Mark and share your answers with the class. How well did you do?
 * Review completed classwork / key term quiz

Download complete the gapfill on, print-off and stick into your exercise book. You can copy and complete if you have a problem printing.
 * Homework**** activity options **

[|PhET's] circuit construction kit is very easy to use and enables you to build and test example circuits easily if electrical components are not available. You can also use it to review circuits and learning at home. media type="custom" key="20491504" [|Click here] to download your own copy
 * Useful links**