Grade 11 Physics - Exam Review Questions and Answers Updated 2027

Grade 11 Physics - Exam Review
Questions and Answers Updated
2027
DifferenceBbetweenBScalerBandBVectorB-BAnswerBVectorsBneedBdirection



DifferenceBbetweenBVavg,BVi,BVfB-
BAnswerBVfB=BfinalBvelocity,BViB=BinitialBvelocity,BVfB=BfinalBvelocity



(PROJECTILES)BABballBrollsBwithBaBspeedBofB2.0Bm/sBacrossBaBlevelBtableBthatBisB1.0B
mBaboveBtheBfloor.BUponBreachingBtheBedgeBofBtheBtable,BitBfollowsBaBparabolicBpat
hBtoBtheBfloor.BHowBfarBalongBtheBfloorBisBtheBlandingBspotBfromBtheBtable?B-
BAnswerB0.90m



AnBastronautBstandsBonBtheBedgeBofBaBlunarBcraterBandBthrowsBaBhalf-eaten

Twinkie™BhorizontallyBwithBaBvelocityBofB5.00Bm/s.BTheBfloorBofBtheBcraterBis

100.0BmBbelowBtheBastronaut.BWhatBhorizontalBdistanceBwillBtheBTwinkie™

travelBbeforeBhittingBtheBfloorBofBtheBcrater?B(TheBaccelerationBofBgravityBon

theBmoonBisB1/6BthBthatBofBtheBEarth).B-BAnswerB55.3m



VelocityBdistanceBtimeBtriangleB-BAnswerBd=vt,Bv=d/t,Bt=d/v



Newton'sBfirstBlawBofBmotionB-
BAnswerB(Inertia)BAnBobjectBatBrestBstaysBatBrestBandBanBobjectBinBmotionBstaysBinB
motionBwithBtheBsameBspeedBandBinBtheBsameBdirectionBunlessBactedBuponBbyBanB
unbalancedBforce.



Newton'sBSecondBLawBofBMotionB-
BAnswerBTheBaccelerationBofBanBobjectBdependsBonBtheBmassBofBtheBobjectBandBth
eBamountBofBforceBapplied.

,Newton'sBThirdBLawB-
BAnswerBForBeveryBactionBthereBisBanBequalBandBoppositeBreaction



WhatBisBaBforce?B-BAnswerBaBpushBorBpullBonBanBobject



4BfundamentalBforcesBinBorderBfromBweakestBtoBstrongestB-
BAnswerBGravitational,BweakBnuclear,Belectromagnetic,BstrongBnuclear



WhatBisBfrictionalBforce?B-BAnswerBForceBofBfrictionBopposesBmotionBwhenBone

surfaceBmovesBoverBanother.



StaticBFrictionBvsBKineticBFrictionB-
BAnswerBIfBtwoBsystemsBareBinBcontactBandBstationaryBrelativeBtoBoneBanother,Bthen
BtheBfrictionBbetweenBthemBisBcalledBstaticBfriction.BIfBtwoBsystemsBareBinBcontactBa
ndBmovingBrelativeBtoBoneBanother,BthenBtheBfrictionBbetweenBthemBisBcalledBkinetic
Bfriction



WhatBisBmaximumBstaticBfriction?B-
BAnswerBForceBrequiredBtoBaccelerateBanBobjectBfromBrest



UniversalBGravityB-
BAnswerBAllBobjectsBareBattractedBtoBeachBotherBthroughBgravity.BGB=BgravitationalBc
onstant,BrB=BdistanceBbetweenBtheBcentreBofBtheBmasses



(Dynamics)BWhatBisBtheBforceBofBattractionBbetweenBaB650BkgBmassBandBaB1250Bkg
BmassBifBtheBdistanceBbetweenBtheirBcentresBisB1.2Bm?B-BAnswerB3.8*10^-5



(ElevatorBProblem)BAB75BkgBmanBstandsBinBanBelevator.BWhatBwillBbeBtheBforceBthe
BelevatorBexertsBonBhimBwhen

a)BtheBelevatorBisBatBrest

b)BtheBelevatorBisBmovingBupBwithBaBuniformBaccelerationBofB2.0Bm/s2.

, c)BtheBelevatorBisBmovingBdownBwithBaBuniformBaccelerationBofB2.0Bm/s2.B-
BAnswerBa)B735NBb)B885NBc)B585N



(Dynamics)BABjetBplaneBpilotBdecidesBtoBaccelerateBhorizontally.BIfBtheBthrustBofBtheB
enginesBisBincreasedBtoB5.0BxB104BNBatBaBtimeBwhenBtheBairBresistanceB(orBdrag)Ba
ctingBonBtheB4.0BxB103BkgBplaneBamountsBtoB3.0BxB104BN,BwhatBwillBbeBtheBplane'
sBacceleration?B-BAnswerB5.0m/s2



ForceBofBTensionB(Ft)B-
BAnswerBAlwaysBaBpullingBforceBthroughBaBropeBorBstring,Betc.



(Dynamics)BHowBmuchBappliedBforceBisBneededBtoBaccelerateBaB20.0BkgBblockBofBwo
odBatB4.0Bm/s2BalongBaBroughBtable,BagainstBaB30.0BNBforceBofBfriction?B-
BAnswerB110N



EnergyB-BAnswerBTheBabilityBtoBdoBworkBmeasuredBinBJoulesBwhereB1BJB=B1BNm



WorkB-
BAnswerBABforceBappliedBacrossBaBdistance,BorBwhenBaBforceBisBappliedBtoBchangeBt
heBenergyBofBanBobject.BEqualBtoBchangeBinBenergy



YouBpullBanBobjectBinBaBstraightBlineBwithBaBforceBofB12N.BItBmovesB5.0m.BHowBmu
chBworkBdidByouBdo?B-BAnswerB-57J



KineticBEnergyB-BAnswerBTheBenergyBofBaBmassBinBmotion



AnBelephantBfallsBoutBofBaBtree.BIfBitBhasBaBkineticBenergyBofB900kJBandBaBmassBof
B4000kg,BwhatBisBitsBvelocity?B-BAnswerBv=20m/s



gravitationalBpotentialBenergyB-
BAnswerBTheBenergyBofBmassBbecauseBofBitsBheightBinBaBgravitationalBfield.BPotential