Brain CURRENT ELECTRICITY

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1 They all produe stati eletriity 6 Now does a generator reate urrent? pp Name: rain URRENT ELETRTY Date:_ hanging wind energy into eletrial energy hanging heat energy into eletrial energy hanging mehanial energy rnto eletrial energy hanging solar energy into eletrial energy D nreasing the voltage of an eletrial urrent 8 Whih of the following are soures of mehanial energy? Radios and televisions Reduing the voltage of an eletrial urrent Spinning ars and truks Produing a magneti field 9 What is the main funtion of a turbine? Wind and fossil fuels Transmission lines and transformers lternating urrent produes more voltage than diret urrent lternating urrent always flows in the same diretion; the rainpop. ll rights reserved. Visit us at D down D Using too muh eletriity an ause power plants to break Using too muh eletriity an start dangerous eletrial tires eletriity every day Diret urrent produes more voltage than alternating urrent Diret urrent always flows in the same diretion; the diretion Power ompanies only give eah home a limited amount of t is often produed by burning fossil fuels whih are a polluting, non-renewable resoure eletriity? 5 What s the funtion of every generator on Earth? 1 What is one possible reason why it s a good idea to onserve of an alternating urrent swithes bak and forth Through a series of generators Through a series of many transformers Through wires transmission t travels through the air as eletromagneti waves house? 4 How does eletriity travel from power plants to your diretion of a diret urrent swithes bak and forth 3 How does alternating urrent differ from diret urrent? D,, t is a soure of eletromagneti radiation,,,, t is a soure of diret urrent t is a soure of stati eletriity,, transformer; ) Eletrial urrent enters your home inreased by a transformer; ) Voltage is dereased by a t is a soure of alternating urrent 7 Plae the following events in sequene ) Voltage is 2 What an you infer about this soure of eetriity y using energy from the sun They an all be used to power automobiles They are all soures of alternating urrent y using a fan y using an internal ombustion engine () They are all soures of diret urrent y using an eletromagnet What do fuel ells, batteries, and solar ells have in ommon? ass:

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3 sientist to desribe eletromagneti indution Hans Orsted and Mihael Faraday ompeted to be the first eletromagnet? 1 fl 6 Whih of the following devies is most likely to ontain an Whih of the following is a true statement? lass rainpop. ll rights reserved. Visit us at 4 reate it hoose the best answer. D Use a larger magnet They are two forms of the same basi fore They are not losely related at all Magnetism is a form of eletriity Eletriity is a form of magnetism 4 Reverse its diretion What is the relationship between eletriity and magnetism? Turn it into something else Fuel that an be burned Move the magnet through the oil faster Reverse the magnet s diretion Make it more powerful 1 n extremely large magnet Use a magnet of opposite polarity How would you reverse the diretion of the urrent flowing wires. ut the magnet in the first moves muh faster than urrent in the seond eletromagnet seond diretions The D urrent in the first eletromagnet moves faster than the The urrents in the two eletromagnets run in opposite seond D The diretion of the eletri urrent in your home might swith through the oil in Faraday s experiment? bak and forth 5 The first eletromagnet has a more powerful urrent than the The first eletromagnet has a less powerful urrent than the the seond. Therefore: Two eletromagnets ontain the same types of magnets and wire that s at least 5 meters long Eletriity ould not be distributed through power lines to Eletriity ould not be reated at power plants people s homes The eletriity in your house might have an extremely high voltage 9 What might happen if transformers ddn t exist? $ What do you need to build a working eletri motor? soure of eletriity Parallel to the wire round the wire 2 When an eletri urrent runs through a wire, a magneti 3 n physis, to indue something is to: D Eletromagnet field is indued Through the wire nduer Faraday built on Orsted s disoveries to desribe leading to ontroversy eletromagneti indution Orsted stole Faraday s ideas about eletromagneti indution, Under the wire urrent. So, you buy a gasoline-powered: Generator 7 You re going amping, and you need a soure of eletri y Orsted and Faraday were olleagues who worked together to disover eletromagneti indution Motor NDUTON - ELETROMGNET Date: Name:

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5 .14 iti:.ettrpnnrr i_, era & a i eee -dew reeteten an th eernte rtrneit? tltne teeny wnperre e#rrnneet wwt Rese then urrent 24 itth enretene 21k ftj re ha e a t) in H e,v urrent fltal:ystjstafle- ifi t t.(i 5O ilit & 2 2-.,hm nsktr? he thth drnth, what h the nwreet thnezeb the low Eletri and Magneti Phenomena ST Test Release Questions.notebook February 6, 213 ) Whet tr.tnnt thxrnh the ruer, L_,\/\/_J P=4ut 2S t (7V. SV rntt8winteet ts enpera The tdt.e erree the Uburhm b the drrekt thn rrbrnt, t nwttr rtak.ttn

6 Eletri and Mapieti Phenomena ST Test Release Questions.notebook February 6, 213 fl hatttrv is nim&ried ta a lisht tsilt wth a resstamn f 3i. Whet is the urrent in the droll! 234. El: r frets <a. wert% at urrent 1wsi it 14 rsneete4 a waste Whet.;he rllstanee at thtnpplinet! 23r3 dun L ;:.? i 54 temt Sapnalawttws are rraateriab that appear tu esheblt an reaatama Thereftwe. d&nna paaahgthrsttmh a aapernrathwtar will L zutotta no aznzul gaza So hat iaarat thranznt t powori doznzaetz. the kzzn:n? harga. nnáttnr elxnák uses! as am amplifir Elba j4fl5: j iplieti to the input of the trnat nr. the autpta aignal is L aaratinplitad.. anuaiarnp4.lwdtz. a is Llrarr nra unpilat 1 P1 2 an lh)w nun jw4wer s 4kwapatdi iq the reatatur in the droll nb.ne? txlsn!.15j Tan opjaaaatly harped partdtw are hold at phwtr rant eah other. When the partidea are roleaseti, they well eutfl iki atzdua away [turn awh Sbn (n sszkr4 tenrd.azh )tszr. rotatej ikwiuz diretiote 1) rozza in a euurrrkszkheu aisozion 2

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