“force”的概念、定义、习题解题方法及翻译-物理辞典

单词	force
释义	force Symbol F. The agency that tends to change the momentum of a massive body, defined as being proportional to the rate of increase of momentum. For a body of mass m travelling at a velocity v, the momentum is mv. In any coherent system of units the force is therefore given by F = d(mv)/dt . If the mass is constant F = mdv/dt = ma , where a is the acceleration (see Newton's laws of motion). The SI unit of force is the newton. Forces occur always in equal and opposite action-reaction pairs between bodies, though it is often convenient to think of one body being in a force field
随便看	degenerate level degenerate semiconductor degenerate states degree degrees of freedom deionized water dekatron del delay line delayed neutrons deliquescence demagnetization demodulation denature densitometer density density of states depleted depletion layer depolarization depression of freezing point depth of field derivative derived unit desorption

物理辞典收录了3346条物理词条，基本涵盖了常用物理知识及物理英语单词词组的翻译及用法，是物理学习的有利工具。