Chapter 4 lesson_2
- 1. Chapter 4 Lesson 2 By: Mr. Vorick
- 2. Essential Question EQ: What makes a circuit? Hypothesis: A:
- 3. Vocabulary Electric current : a flow of electric charges Electric circuit : a continuous pathway that can carry an electric current Series Circuit : an electric circuit with only one path for current Parallel Circuit : an electric circuit with two or more paths for current
- 4. More Vocab… Resistance : how much material opposes, or resists, the flow of electric current Short Circuit : a flaw in a circuit that allows a large current to flow through where it isn’t wanted
- 5. Observation Chart Observations Drawing Arrangement of Wire, Battery, and Bulb
- 6. Lab Questions 1.) What did you observe about the arrangement of materials when the bulb lit up? 2.) How should you connect the parts to make the bulb light up? 3.) What conclusions can you draw after testing your predictions? How will these results help you make predictions in the future?
- 7. Moving Charges Current Electricity- when electric charges have a path to follow, they flow and move Like a flowing water A steady flow of moving charges Electric Circuit- a closed path that electric currents follow Why is Current Electricity more useful than Static Electricity?
- 8. Series Circuits What are some types of series? Series Circuits: used if you want to connect more than one bulb The same amount of electric current flows through each device Why are series circuits not used to wire buildings?
- 9. Why we don’t use Series Circuits in a house… The current can only flow when everything is connected at the same time. All devices would have to be turned on at the same time. Christmas lights---series circuit?
- 10. Parallel Circuits Instead of making one path, why not make two? Parallel Circuits: a separate path is made for each device If one device is out the others will still work, why? Why is this useful in our classroom? Ball game
- 11. Resistance How much a material opposes the flow of current The amount of current that can flow through a circuit depends on this More resistance the less current can go through the circuit
- 12. Short Circuit When the current flows where it isn’t wanted Prevent the rest of the circuit from working
- 13. Essential Question What makes a circuit? A: