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Science Electricity: Lesson 9: Open and Closed Circuits and Switches.

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Presentation on theme: "Science Electricity: Lesson 9: Open and Closed Circuits and Switches."— Presentation transcript:

1 Science Electricity: Lesson 9: Open and Closed Circuits and Switches

2 The BIG Question: How is current electricity produced?

3 something must touch the positive and negative terminal of the battery something must touch the threaded base and the tip of the bulb current electricity can only flow from negative to positive electricity needs a complete circle in order to flow

4 Will the bulb light? NO! +

5 Will the bulb light? YES! +

6 Will the bulb light? YES! +

7 Will the bulb light? NO! +

8 Will the bulb light? YES! ++

9 Will the bulb light? NO! ++

10 Will the bulb light? NO! +

11 Will the bulb light? YES! +

12 The BIG Question: How can I control the electricity flowing through a circuit?

13

14 Inside a Light Bulb filament

15

16

17 How can I control the electricity flowing through a circuit? closed circuit

18 ______________________________________________ _____________________________________________ closed circuit a complete circuit that allows electricity to flow

19 How can I control the electricity flowing through a circuit? C L O S E D C I I C U R T closed circuit

20 How can I control the electricity flowing through a circuit? open circuit

21 ______________________________________________ _____________________________________________ open circuit an incomplete circuit that does not allow electricity to flow

22 How can I control the electricity flowing through a circuit? open circuit O P E N C I I C U R T

23 The circuit is closed. Electrons flow through the filament and produce light. The filament is broken. The circuit is open and no electrons can flow.

24 The BIG Question: How can I control the electricity flowing through a circuit?

25 A switch can be used to open and close a circuit.

26 ..

27 2. Draw a picture of your circuit on the top half of your sheet. 3. Use your switch to open your circuit. Then work on your Electricity Challenge Packet or study your flash cards. 1. Build a switch that will allow you to easily open and close your circuit.

28 ______________________________________________ _____________________________________________ switch a device that can be used to open and close a circuit

29 Inside a Switch Closed Circuit Open Circuit

30 My Prior Knowledge 1-2 All About Atoms 3-4 How is Static Electricity Produced? 5 Electrifying Vocabulary 6-8 How Electrical Charges Affect One Another 9-10 How is Current Electricity Produced? Will the Bulb Light? 17 Parts of a Light Bulb Open and Closed Circuits 20-22

31 Electrifying Vocabulary C current electricity - pg. 12 circuit - pg. 15 closed circuit - pg. 20

32 Electrifying Vocabulary O open circuit - pg. 21

33 S static electricity- pg. 8 switch- pg. 22


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