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Slide 2 Electric Jeopardy! Slide 3 Particle- ulars Share the Charge Static V, I and R, Ohm-y! Potpourri 15 20 30 40 Slide 4 Which subatomic particle has a negative charge? a)Neutron b)Proton c)Electron d)Quark Slide 5 Slide 6 repel attract When do charges repel or attract? Slide 7 repel 2 positive or 2 negative charges Charges repel when they are alike ( 2 positive or 2 negative charges ). attract 1 positive and one negative Charges attract when they are opposite ( 1 positive and one negative ). Slide 8 Describe what the picture below represents. Slide 9 It shows Electric Fields, a force that surrounds the charged particle. Slide 10 Correctly label the 4 parts of the atom in this diagram. 1 2 3 4 Slide 11 Back to Menu Final Jeopardy 1.Electron 2.Proton 3.Nucleus 4.Neutron Slide 12 Transferring a charge just by touching another object is called Slide 13 Conduction. Slide 14 What type of charge transfer does the picture show? Why does your hair get all frizzy? Slide 15 This picture shows charge transfer through Friction. Electrons move from the balloon to your hair and repel one another. Slide 16 Static Discharge What is Static Discharge? Give an example. Slide 17 Static Discharge Static Discharge is the loss of static electricity from an object. An example of this is lightning. Slide 18 Describe how the last type of charge transfer works and give an example of when it is used. Slide 19 Back to Menu Final Jeopardy Induction is the movement of electrons caused by electric fields. This can be used to charge controllers and phones. Slide 20 How is Static electricity different from Current electricity? Slide 21 Static electricity does not flow. Slide 22 The difference in the Electric Potential between two places is called Slide 23 Voltage Potential Difference or Voltage. Slide 24 How does a waterfall demonstrate Voltage? Slide 25 Like water, current flows from areas of high potential to areas of low potential. Slide 26 Why is it that birds sitting on power lines are not zapped? There are 2 reasons. Slide 27 Back to Menu Final Jeopardy The birds have a higher resistance than the wire and they are not touching the ground or another wire. Slide 28 What is Ohms Law? Slide 29 Resistance voltage current Resistance is equal to the voltage divided by the current. RV R = V I Slide 30 What are the 2 types of circuits? What is the primary difference between them? Slide 31 Series Parallel The 2 types of circuits are Series and Parallel. The main difference is that Series has only 1 path for charge to take while Parallel has multiple. Slide 32 Which circuit has greater resistance? Which has brighter bulbs? Which will not be affected if one bulb burns out? Slide 33 The series circuit will have greater resistance. The parallel circuit will be brighter and unaffected by a bulb burning out. Slide 34 series 120 volts 24 amps resistance You are building a series circuit with 5 light bulbs. If the power supply provides 120 volts and there is a current of 24 amps, what is the resistance of one bulb. Slide 35 Back to Menu Final Jeopardy RV R = V I R120V R = 120V 24A R5 R = 5 1 Since there are 5 light bulbs, the resistance of 1 bulb is 1. Slide 36 a) Heightb) Electric field c) Voltage Electric Potential depends on Slide 37 b) Electric field c) Voltage a) Height Electric Potential depends on Slide 38 Who first described the parts of the atom and what charges did he give them? Slide 39 proton electronneutron Benjamin Franklin gave the parts a positive ( proton ), negative ( electron ), and neutral ( neutron ) charge. Slide 40 What is a circuit breaker and why is it important? Slide 41 A circuit breaker opens a circuit so current can no longer flow. This helps protect from fires and other electrical hazards. Slide 42 Name the 4 possible factors that can change the resistance of a wire and how you can adjust them to increase it. Slide 43 Back to Menu Final Jeopardy The resistance of a wire depends on thicker resists more 1.Thickness ( thicker resists more ) longer resists more 2.Length ( longer resists more ) metal vs. plastic 3.Material ( metal vs. plastic ) hotter resists more 4.Temperature ( hotter resists more ) Slide 44 What is pictured below? Label the 2 types of parts. Find the voltage if there is a current of 12 amps and a resistance of 3 ohms. 1 222 Slide 45 Slide 46 1 222 This picture shows a)A parallel circuit. b)It consists of (1) a battery and (2) resistors. c)The voltage (V = I x R) is 36V. Back to Menu