year 10 phase 3 10... · if you have internet access, review the ppt yr10 velocity-time graphs...

Year10Phase3SCIENCEWORKPACK

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Session Title Worktobecompleted

Resourceprovided Outcome On-LineSupport

1

P9:Speed-DistanceTimeGraph

WorkthroughthepptontheVLE.Takenotesandmakeflashcardsontheinformationprovidedinthisbooklet.

PhaseIIIWorkbookwithtasks

Completed:Onepageornotesorflashcardsproduced

P9:Speed-DistanceTimeGraphlessonvideoonVLE

2

P9:Speed-DistanceTimeGraph

Reviewpreviousppt.Answerquestionsprovided


Completed:Questionsansweredinfull.

Seeabove

3

P9:VelocityandAcceleration




P9:VelocityandAccelerationlessonvideoonVLE

4

P9:VelocityandAcceleration




Seeabove

5

P9:Velocity-TimeGraphs




P9:Velocity-TimeGraphslessonvideoonVLE

6

P9:Velocity-TimeGraphs




Seeabove

7

P9:AnalysingMotion

WorkthroughthepptontheVLE.Takenotesandmakeflashcardsontheinformation



P9:AnalysingMotionlessonvideoonVLE

providedinthisbooklet.

8

P9:AnalysingMotion




Seeabove

9

P9SummaryQuestions

Questions1-4


CompletedallquestionsgivendependingonwhetheryouarehigherorfoundationAllquestionscompletedinexercisebooks

Reviewallvideosabove

10

P9PracticeQuestions

Questions1-6Onlyhigherdoesquestion7-9


CompletedallquestionsgivendependingonwhetheryouarehigherorfoundationAllquestionscompletedinexercisebooks

Reviewallvideosabove

BonusExtrasession.Uselinkstoaccessadditionalexamquestionswithanswerstopracticeandcheckyourprogress.

Session1Task1:Ifyouhaveinternetaccess,workthroughthepptYr10DistanceTimeGraphlessononVLE.Task2:Readtheinfobelow,takingnotesormakingflashcardsasyougo.

AveragespeedWhenanobjectmovesinastraightlineatasteadyspeed,youcancalculateitsaveragespeedifyouknowhowfarittravelsandhowlongittakes.Thefollowingequationshowstherelationshipbetweenaveragespeed,distancemovedandtimetaken:

averagespeedismeasuredinmetrespersecond,m/sdistancemovedismeasuredinmetres,mtimetakenismeasuredinseconds,sForexample,acartravels300min20s.Itsaveragespeedis:300÷20=15m/s

Distance-timegraphsAdistance-timegraphshowshowfarsomethingtravelsoveraperiodoftime.Theverticalaxisofadistance-timegraphisthedistancetravelledfromthestart.Thehorizontalaxisisthetimefromthestart.Whenanobjectisstationary,thelineonthegraphishorizontal.Whenanobjectismovingata

steadyspeedinastraightline,thelineonthegraphisstraightbutsloped.Notethatthesteepertheline,thefastertheobjectistravelling.Thepurplelineissteeperthanthegreenlinebecausethepurplelinerepresentsanobjectwhichismovingmorequickly.

Session2.Task1:Ifyouhaveinternetaccess,reviewthepptYr10DistanceTimeGraphlessononVLE.Task2:Completethequestionsbelow.

Lookatthefollowingdistance–timegraphofamotorbikeandthenanswerthequestions.

Q1.Forhowlongisthemotorbikeatrestduringthejourney?Q2.Whatdistancehasthemotorbiketravelledinthefirst25seconds?Q3.Whatdistancedoesthemotorbiketravelbetween60and80seconds?Q4.Workoutthespeedofthemotorbikeduringthefirst10seconds.Showyourcalculations.Q5.Betweenwhattimesdidthemotorbiketravelatthelowestspeed(notincludingthetimeitwasatrest)?Q6.Workoutthespeedofthemotorbikeduringthistime.Showyourcalculations.Q7.Workoutthespeedofthemotorbikebetween60and80seconds.Showyourcalculations.STRETCHBetween80and90seconds,thebikerstartstotravelataconstantspeedof20m/s.Usingthisinformation,completethegraphforthemotorbike.

Task3:Maketwoflashcards.Oneforthespeed,distance&timeequation.Anotherfordistancetimegraphs.

Session3Task1:Ifyouhaveinternetaccess,workthroughthepptYr10VelocityandAccelerationlessononVLE.Task2:Readtheinfobelow,takingnotesormakingflashcardsasyougo.

AccelerationYoucancalculatetheaccelerationofanobjectfromitschangeinvelocityandthetimetaken.Velocityisnotexactlythesameasspeed.Velocityhasadirectionaswellasaspeed.Forexample,15m/sisaspeed,but15m/sNorthisavelocity(Northisthedirection).Commonlyvelocitiesare+(whichmeansforwards)or-(whichmeansbackwards).Forexample,-15m/smeansmovingbackwardsat15metreseverysecond.Theequationforacceleration.Whenanobjectmovesinastraightlinewithaconstantacceleration,youcancalculateitsaccelerationifyouknowhowmuchitsvelocitychangesandhowlongthistakes.

Theunitsforaccelerationarecommonlywrittenasm/s/sorm/s2.Theequationforaccelerationcanalsoberepresentedas:

where:aisaccelerationinm/s/sorm/s2visfinalvelocityinm/suisinitialvelocityinm/stistimeinsForexample,acaracceleratesin5sfrom25m/sto35m/s.Itsvelocitychangesby35-25=10m/s.Thereforeitsaccelerationis10÷5=2m/s2Deceleration,ornegativeacceleration,isobservedwhenanobjectslowsdown.Theunitsarethesameasforaccelerationbutthenumberhasanegativesymbolbeforeit.Forexample,thecarsloweddownat-1m/s2.Here’sanotherworkedexample.Thistimeacardeceleratesin5sfrom35m/sto25m/s.Itsvelocitychangesby25-35=-10m/s.Thereforeitsaccelerationis-10÷5=-2m/s2

Session4.Task1:Ifyouhaveinternetaccess,reviewthepptYr10VelocityandAccelerationlessononVLE.Task2:Completethequestionsbelow.

1. Changeinspeed=14m/s;timetaken=2seconds.Calculatetheacceleration.2. Acaracceleratesfromrest(zerospeed)uptoaspeedof30m/sin12seconds.Calculatethe

acceleration.3. AcyclistintheTourdeFranceacceleratesdownahillfrom22m/stoaspeedof37m/s.

Thisaccelerationtakeshim2seconds.Calculatetheacceleration.4. ArocketlaunchingintheUkraineacceleratesupwardsfromresttoaspeedof12km/sin8

seconds.Calculatetheacceleration.5. Acyclistacceleratesfrom0m/sto8m/sin3seconds.Whatishisacceleration?Isthis

accelerationhigherthanthatofacarwhichacceleratesfrom0to30m/sin8seconds?6. Acaradvertisementstatesthatacertaincarcanacceleratefromrestto70km/hin7

seconds.Findthecar’saverageacceleration.7. Alizardacceleratesfrom2m/sto10m/sin4seconds.Whatisthelizard’saverage

acceleration?8. IfaFerrari,withaninitialvelocityof10m/s,acceleratesatarateof50m/s2for3seconds,

whatwillitsfinalvelocitybe?

Session5Task1:Ifyouhaveinternetaccess,workthroughthepptYr10Velocity-TimeGraphslessononVLE.Task2:Readtheinfobelow,takingnotesormakingflashcardsasyougo.

Velocity-timegraphsThevelocityofanobjectisitsspeedinaparticulardirection.Twocarstravellingatthesamespeedbutinoppositedirectionshavedifferentvelocities.Avelocity-timegraphshowsthespeedanddirectionanobjecttravelsoveraspecificperiodoftime.Velocity-timegraphsarealsocalledspeed-timegraphs.Theverticalaxisofavelocity-timegraphisthevelocityoftheobject.Thehorizontalaxisisthetimefromthestart.FeaturesofthegraphsWhenanobjectismovingwithaconstantvelocity,thelineonthegraphishorizontal.Whenthehorizontallineisatzerovelocity,theobjectisatrest.Whenanobjectisundergoingconstantacceleration,thelineonthegraphisstraightbutsloped.Curvedlinesonvelocity-timegraphsalsoshowchangesinvelocity,butnotwithaconstantaccelerationordeceleration.Thediagramshowssometypicallinesonavelocity-timegraph.

Thesteepertheline,thegreatertheaccelerationoftheobject.Thepurplelineissteeperthanthegreenlinebecauseitrepresentsanobjectwithagreateracceleration.Noticethatalineslopingdownwards-withanegativegradient-representsanobjectwithaconstantdeceleration(itisslowingdown).Accelerationcanbecalculatedbydividingthechangeinvelocity(measuredinmetrespersecond)bythetimetakenforthechange(inseconds).Theunitsofaccelerationarem/s/sorm/s2.

Theaccelerationshowninthepurplelinecanbecalculatedasfollows:acceleration(m/s2)=changeinvelocity(m/s)÷timetaken(s)=10÷2=5m/s2Thisisthegradientofthepurpleline.Wecancalculatetheaccelerationshowninthefirstsectionofthegreenlineasfollows:acceleration(m/s2)=changeinvelocity(m/s)÷timetaken(s)=8÷4=2m/s2Thisisthegradientofthefirstsectionofthegreenline.

Session6.Task1:Ifyouhaveinternetaccess,reviewthepptYr10Velocity-TimeGraphslessononVLE.Task2:Completethequestionsbelow.

Q1.Drawavelocitytimegraphforanobjecttravelingat10m/sandthenstopping.Q2.Drawavelocitytimegraphforanobjectacceleratingfromstopto20m/s.Q3.Redrawthetwographsaboveonadistancetimegraph.Howdotheydiffer?Q4.Howdoyoucalculatedistancetravelledonavelocitytimegraph(Thinkaboutthespeeddistancetimeequation!).

Task3:Maketwoflashcards.Onecomparingdistancetimegraphsandvelocitytimegraphs.Theotheroneshouldsummarisehowtocalculateacceleration.

Session7.Task1:Ifyouhaveinternetaccess,workthroughthepptYr10AnalysingMotionlessononVLE.Task2:Readtheinfobelow,takingnotesormakingflashcardsasyougo.ScalarandvectorquantitiesAquantitythathasmagnitudebutnoparticulardirectionisdescribedasscalar.Aquantitythathasmagnitudeandactsinaparticulardirectionisdescribedasvector.ScalarquantitiesScalarquantitiesonlyhavemagnitude(size).Forexample,11mand15ms-1arebothscalarquantities.Scalarquantitiesinclude:• distance• speed• time• power• energyScalarquantitieschangewhentheirmagnitudechanges.VectorquantitiesVectorquantitieshavebothmagnitudeanddirection.Forexample,11meastand15ms-1at30°tothehorizontalarebothvectorquantities.Vectorqualitiesinclude:• displacement• velocity• acceleration• force• weight• momentumVectorquantitieschangewhen:• theirmagnitudechanges• theirdirectionchanges• theirmagnitudeanddirectionbothchange• Thedifferencebetweenscalarandvectorquantitiesisanimportantone.Speedisascalarquantity–itistherateofchangeinthedistancetravelledbyanobject,whilevelocityisavectorquantity–itisthespeedofanobjectinaparticulardirection.ExampleAgeostationarysatelliteisinorbitaboveEarth.Itmovesatconstantspeedbutitsvelocityisconstantlychanging(sinceitsdirectionisalwayschanging).• thedifferenceintwovectorsquantities=finalvector-initialvector• thedifferenceintwoscalarquantities=largevalue-smallvalue

Session8.Task1:Ifyouhaveinternetaccess,workthroughthepptYr10AnalysingMotionlessononVLE.Task2:Completethequestionsbelow.

1.Lookatthedistance–timegraphforacarandanswerthefollowingquestions.

a)Calculatethevelocityofthecarat5seconds.b)Calculatethevelocityofthecarat20seconds.c)Calculatetheaverageaccelerationofthecarbetween5and20seconds.2Lookatthevelocity–timegraphforacyclistandanswerthefollowingquestions.a)Describethemotionofthecyclist.b)Calculatetheiraccelerationat6seconds.

c)Calculatetheiraccelerationat10seconds.d)Determinethedistancetravelledbythecyclistinthefirst4seconds.

Session9.Task1:Completethequestionsbelow.1.Victorwalksanaveragespeedof4Km/h.Heneedstowalktoschoolwhichis3Kmaway.Heneedstobethereat3pmwhattimeshouldhesetoff?Showyourworking.(3marks)2.Ifamantakes30minutestodrivetoworkanditis44milesintowork,whatishisaveragespeed?Showyourworking.(3marks)3.Peteneedstobeatworkfor9.00am.Heleaveshishouseat7.30amanddrivestothegymwhichis12.5milesaway.Petespends45minutesinthegymthendrivesthereaming9milestowork.a.Whataveragespeedin,milesperhour,mustPetedriveattoensureheisnotlateforwork?b.OnTuesdayPetespends55minutesinthegym.Whataveragespeedin,milesperhour,mustPetedriveattoensureheisnotlateforwork?c.OnThursdaysPetedrivesstraighttowork,whichis16milesfromPete’shouse.IfPetedrivesatanaveragespeedof28mph,whatisthelatestPetecanleavehishouseandstillarriveforworkontime?

Session10.Task1:Completethequestionsbelow.1.Adamcycled24kmin2hours.Workouthisaveragespeed.2.Stuartdrives180kmin2hours15minutes.WorkoutStuart’saveragespeed.3.Joetravelled60milesin1hour30minutes.WorkoutJoe’saveragespeed.Giveyouranswerinmilesperhour.4.ThedistancefromLiverpooltoPragueis1200km.AflightfromLiverpooltoPraguelasts4hours.Workouttheaveragespeedoftheaeroplane.5.Miadroveadistanceof343km.Shetook3hours30minutes.Workoutheraveragespeed.Giveyouranswerinkm/h.6.ThedistancefromLondontoNewYorkis3456miles.Aplanetakes8hourstoflyfromLondontoNewYork.Workouttheaveragespeedoftheplane.7.Acartravelsfor3hours.Itsaveragespeedis75km/h.Workoutthetotaldistancethecartravels.8.Danielleaveshishouseat0700.Hedrives87milestowork.Hedrivesatanaveragespeedof36milesperhour.AtwhattimedoesDanielarriveatwork?9.Fredruns200metresin21.2seconds.WorkoutFred’saveragespeed.Writedownallthefiguresonyourcalculatordisplay.

BonusExtraChallengeSession:

Ifyouhavecompletedalltheworkabove,Clickonthelinksbelowforadditionalexamquestionstopractice.Answersarealsoavailable.

Feelingunsure:http://cugejag.exampro.net/Feelingconfident:http://heyihuu.exampro.net/Triplesciencestudent(DrMeiklejohn’sclass):http://heyihuu.exampro.net/

year 10 phase 3 10... · if you have internet access, review the ppt yr10 velocity-time graphs...

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