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# Chapter 4 lesson_2

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### Chapter 4 lesson_2

1. 1. Chapter 4 Lesson 2 By: Mr. Vorick
2. 2. Essential Question <ul><li>EQ: What makes a circuit? </li></ul><ul><li>Hypothesis: </li></ul><ul><li>A: </li></ul>
3. 3. Vocabulary <ul><li>Electric current : a flow of electric charges </li></ul><ul><li>Electric circuit : a continuous pathway that can carry an electric current </li></ul><ul><li>Series Circuit : an electric circuit with only one path for current </li></ul><ul><li>Parallel Circuit : an electric circuit with two or more paths for current </li></ul>
4. 4. More Vocab… <ul><li>Resistance : how much material opposes, or resists, the flow of electric current </li></ul><ul><li>Short Circuit : a flaw in a circuit that allows a large current to flow through where it isn’t wanted </li></ul>
5. 5. Observation Chart Observations Drawing Arrangement of Wire, Battery, and Bulb
6. 6. Lab Questions <ul><li>1.) What did you observe about the arrangement of materials when the bulb lit up? </li></ul><ul><li>2.) How should you connect the parts to make the bulb light up? </li></ul><ul><li>3.) What conclusions can you draw after testing your predictions? How will these results help you make predictions in the future? </li></ul>
7. 7. Moving Charges <ul><li>Current Electricity- when electric charges have a path to follow, they flow and move </li></ul><ul><ul><li>Like a flowing water </li></ul></ul><ul><ul><li>A steady flow of moving charges </li></ul></ul><ul><li>Electric Circuit- a closed path that electric currents follow </li></ul><ul><li>Why is Current Electricity more useful than Static Electricity? </li></ul>
8. 8. Series Circuits <ul><li>What are some types of series? </li></ul><ul><li>Series Circuits: used if you want to connect more than one bulb </li></ul><ul><ul><li>The same amount of electric current flows through each device </li></ul></ul><ul><ul><li>Why are series circuits not used to wire buildings? </li></ul></ul>
9. 9. Why we don’t use Series Circuits in a house… <ul><li>The current can only flow when everything is connected at the same time. </li></ul><ul><li>All devices would have to be turned on at the same time. </li></ul><ul><li>Christmas lights---series circuit? </li></ul>
10. 10. Parallel Circuits <ul><li>Instead of making one path, why not make two? </li></ul><ul><li>Parallel Circuits: a separate path is made for each device </li></ul><ul><ul><li>If one device is out the others will still work, why? </li></ul></ul><ul><ul><li>Why is this useful in our classroom? </li></ul></ul><ul><ul><li>Ball game </li></ul></ul>
11. 11. Resistance <ul><li>How much a material opposes the flow of current </li></ul><ul><ul><li>The amount of current that can flow through a circuit depends on this </li></ul></ul><ul><ul><li>More resistance the less current can go through the circuit </li></ul></ul>
12. 12. Short Circuit <ul><li>When the current flows where it isn’t wanted </li></ul><ul><li>Prevent the rest of the circuit from working </li></ul>
13. 13. Essential Question <ul><li>What makes a circuit? </li></ul><ul><li>A: </li></ul>