课程介绍

 

　　Mostofthephenomenaintheworldaroundyouare,atthefundamentallevel,basedonphysics,andmuchofphysicsisbasedonmechanics.Mechanicsbeginsbyquantifyingmotion,andthenexplainingitintermsofforces,energyandmomentum.Thisallowsustoanalysetheoperationofmanyfamiliarphenomenaaroundus,butalsothemechanicsofplanets,starsandgalaxies.Thison-demandcourseisrecommendedforseniorhighschoolanduniversitystudents,scienceteachersandanyonewithacuriosityaboutbasicphysics.Thecourseusesrichmultimediatutorialstopresentthematerial:filmclipsofkeyexperiments,animationsandworkedexampleproblems,allwithafriendlynarrator.You'lldoarangeofinterestingpracticeproblems,andinanoptionalcomponent,youwilluseyouringenuitytocompleteat-homeexperimentsusingsimple,everydaymaterials.Youwillneedsomesimplehigh-schoolmathematics:arithmetic,alittlealgebra,quadraticequations,andthesine,cosineandtangentfunctionsfromtrigonometry.Thecoursedoesnotusecalculus.However,wedoprovideastudyaidintroducingthecalculusthatwouldaccompanythiscourseifitweretaughtinauniversity.Bystudyingmechanicsinthiscourse,youwillunderstandwithgreaterdepthmanyofthewondersaroundyouineverydaylife,intechnologyandintheuniverseatlarge.Meanwhile,wethinkyou'llhavesomefun,too.

 

　　课程目录

 

　　Week1IntroductionofMechanics

 

　　1.1Coursewelcoming

 

　　1.2Introductionandcontext

 

　　1.3Unitsandsignificantfigures

 

　　1.4Vectorsandscalars

 

　　1.5Estimating

 

　　Week2

 

　　Graphingdisplacementandvelocity

 

　　Acceleration

 

　　RelatingVelocity,AccelerationandDisplacement

 

　　RelativeMotion

 

　　Week3

 

　　Projectiles,FallingVerticallyUnderGravity

 

　　CombiningVerticalandHorizontalMotion

 

　　TrajectoriesandRange

 

　　UniformCircularMotion

 

　　Week4

 

　　HistoricalInterlude

 

　　Newton'sLawsofMotion

 

　　InertialandNon-inertialFrames

 

　　Newton'sThirdLaw

 

　　CalculatingTotalForce

 

　　PracticeProblems

 

　　TheSyllogism

 

　　Week5

 

　　WeightversusMass

 

　　SpringsandHooke'sLaw

 

　　NormalandFrictionalForces

 

　　FrictionProblems

 

　　Week6

 

　　WhatisWork

 

　　WorkandKineticEnergy

 

　　WorkandPotentialEnergy

 

　　EnergyConservation

 

　　Energy,WorkandPower

 

　　Week7

 

　　MomentumandCollisions

 

　　ImpulseandMoreAboutCollisions

 

　　CentreofMass,ElasticandInelasticCollisions

 

　　ProblemsInvolvingCollisions

 

　　Week8

 

　　Gravity,Orbits,Planets,Stars...

 

　　GvarieswithLatitudeandAltitude

 

　　Orbits

 

　　GravityandOtherForces