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Transcript
ElectromagnetLab Name: Date: Period: Background: Electricityandmagnetismarerelated.Infact,theyareactuallythesamething:Electromagnetism.Inthislab youwillmakeadevicethatuseselectricityflowingthroughacircuittomakeamagnet.Whenelectricityis flowingthroughthecircuit,wehaveamagnet.Ifwestoptheelectriccurrent,wewillnolongerhavea magnet.Thisisanelectromagnet–amagnetcreatedandcontrolledbyelectricity.Youaregoingtomakean electromagnetanddeterminewhatisabletomakeitstronger.Youwillinvestigatehowthenumberoftimes youwrapthewirearoundthemetalcoreaffectsthestrengthoftheelectromagnet. Materials: • Wire • IronRod • DCGenerator • PaperClips Part1:Investigatingthe#ofwrappedcoils TestableQuestion:(Readtheprocedureforthispart.Whatquestionareyoutryingtoanswer?) Procedure: 1. Cut12inchesofwireandstripbothends. 2. Wrapthewirearoundtheironrod3times. 3. AttacheachendofthewiretotheDCGeneratortosendcurrentthroughthewire,creatingamagnetic field,andmakingthenailmagnetized. 4. Determinehowstrongtheelectromagnetisbyseeinghowmanypaperclipsitcanpickup.Recordthe numberinthedatatablebelow. 5. Wrapthewirearoundthenail2moretimes(totalof5times)andtestthestrengthnow. 6. Wrapthewirearoundthenail5moretimes(totalof10times)andtestthenewstrength. #ofwraps(coils) StrengthoftheMagneticField (#paperclipspickedup) 3 5 10 Part2:Voltage TestableQuestion:(Readtheprocedureforthispart.Whatquestionareyoutryingtoanswer?) Procedure: 1. WraptheIronRodwith3coilsofwire,andattachittotheDCGeneratortocreateanelectromagnet. TurnthebottomdialoftheGeneratorallthewaytotheleft.Thisisthelowestsetting.Recordthe numberofvoltsbeinggeneratedforthe“lowest”setting.Testitsstrengthwiththepaperclips.Record thenumberyouareabletopickupinthedatatablebelow. 2. Repeattestwiththelowestvoltage,butincreasetheamountofcoilsto5,then10. 3. Turnthevoltagetoamediumsetting,andtestthestrengthwith3coils,5coils,and10coilsorwire. 4. Turnthevoltagetothehighestsetting,andtestthestrengthwith3coils,5coils,and10coilsofwire. AmountofVolts StrengthoftheMagneticField (#paperclipspickedup) Lowest _____ 3- 5- 10- Medium _____ 3- 5- 10- Highest _____ 3- 5- 10- Extrapolate: Nowthatyouhavedonethelab,trytocreatethestrongestelectromagnetyoucanwiththesuppliesgiven! Writedownyourevidence. Results: Writeaparagraphconclusionastowhatyoulearned.Howaretheresultsofthistestimportant?
