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Mechanicalmotion机械运动motion运动Referenceobject参照物rest静止Internationalsystemofunits国际单位制（简称IS）Velocity速度sound声音Uniformrectilinearmotion匀速直线运动Variablerectilinearmotion变速直线运动Musicalsound音乐noise噪音Pitch音调frequency频率Loudness响度musicalquality音色Ultrasound超声infrasonicsound次声Light光reflectionoflight光的反射Reflectionlawoflight光的反射定律Mirrorreflection镜面反射diffusereflection漫反射conveslens凸透镜concavelens凹透镜Convergentlens汇聚透镜divergentlens发散透镜Force力elastic弹力Gravity重力weight物重Centerofgravity重心slidingfrictionalforce滑动摩擦力Newton’sfirstlaw牛顿第一定律inertia惯性Resultantforce合力componentforceMass质量density密度Buoyancyforce浮力Archimedesprinciple阿基米德原理Pressure压力pressure压强Principleofpascal帕斯卡原理atmospheric气压Standardatmosphericpressure标准大气压Lever杠杆fixedpulley定滑轮Movablepulley动滑轮mechanicalwork机械功Power功率mechanicalefficiency机械效率Kineticenergy动能energy能量Potentialenergy势能mechanicalenergy机械能Crystal晶体noncrystal非晶体Melting融化meltingpoint熔点Vaporization汽化boiling沸腾Vaporation蒸发sublimation升华Solidification凝固solidifyingpoint凝固点Liquefaction液化condensation凝华Internalenergy内能heatquantity内能Specificheatcapacity比热容heatengine热机Internal-combustionengine内燃机Electriccharge电荷positivecharge正电荷Negativecharge负电荷seriesconnection串联Parallelconnection并联electriccurrent电流Ampere安培voltage电压Volt伏特Ohm’slaw欧姆定律Electricpower电功率ratedvoltage额定电压Ratedcurrent额定电流ratedpower额定功率Electromagneticinduction电磁感应现象Inducedelectriccurrent感应电流Lightguidefiber光导纤维elasticity弹性Hardness硬度ducility延展性Chemicalenergy化学能nuclearenergy核能Lowofconservationofenergy能量守恒定律Renewableenergysource可再生能源Nonrenewableenergysource不可再生能源Nuclearfission核裂变nuclearfusion核聚变Geothermalenergy地热能tidalenergy潮汐能Windenergy风能angleofemergence出射角Lightbeam光束/光柱angleofincidence入射角Lightray光线angleofreflection反射角Lightsource光源angleofrefraction折射角Mainsfrequency电源频率（Hz）apparentdepth视深度Medium介质binoculars双筒望远镜Boiler锅炉microwave微波Mirage海市蜃楼Celsiustemperaturescale摄氏温度Mirror镜changeofstate物态变化Multipleimage复像multiplereflection多次反射Condensation凝结凝聚mutuallyperpendicular相互垂直Color颜色condensationpoint凝结点Normal法线object物体Coolant冷却剂coolingcurve冷却曲XXXObjectdistance物距criticalangle临界Opticalillusion幻象/错觉degree度Opticallydense/lessmedium光密/疏介质deviation偏向/偏差