全国校区

报名咨询热线:400-779-6688

集团客服热线:400-097-9266

首页 热门资讯 新闻资讯 SAT综合 SAT词汇 SAT语法 SAT阅读 SAT写作 SAT数学 SAT物理 SAT化学 SAT问答 SAT预测 SAT留学

首页 > SAT > SAT资讯 > SAT物理 > SAT2物理力学公式总结

SAT2物理力学公式总结

2013-04-23 00:00     作者 :    

阅读量:

 

       今天新航道SAT频道小编为大家整理了SAT物理力学公式,对SAT2物理公式熟练掌握的程度对于解答问题起到了至关重要的作用,供大家参考,以下是详细内容。

 

  Physics Formulas - Mechanics

  Kinematics Formulas

  The Kinematic Equations apply to one-dimmensional motion with costant acceleration from point 1, situated d1 from a point of reference to point 2, situated d2 from the same point of reference. v1 is the velocity at point 1 and v2 is the velocity at point 2.

  v2 = v1 + a·t

  d2 = d1 + (v1 + v2)·t/2

  d2 = d1 + v1·t + a·t2/2

  d2 = d1 + v2·t - a·t2/2

  v22 = v12 + 2a(d2 - d1)

  Average velocity: vav = Δd/Δt

  Average acceleration: aav = Δv/Δt

  Rotational kinematics equations with constant angular acceleration:

  ω2 = ω1 + α·t

  Φ2 = Φ1 + (ω1 + ω2)·t/2

  Φ2 = Φ1 + ω1·t + α·t2/2

  Φ2 = Φ1 + ω2·t - α·t2/2

  ω22 = ω12 + 2α(Φ2 - Φ1)

  Average angular velocity: ωav = Δθ/Δt

  Average angular acceleration: αav = Δω/Δt

  Frequency: f = ω/2π

  Period: T = 2π/ω

  Relations between angular and linear variables:

  l = Φ·r

  v = ω·r

  a = α·r

  Dynamics Formulas

  Pressure: P = F/A

  Newton's Second Law: F = m·a

  Force of kinetic friction: Ff = μ·N

  Hooke's Law: F = -k·x

  Centripetal Force: Fc = m·v2/R

  Centripetal acceleration: ac = v2/R

  Work, Energy, Conservation Laws Formulas

  Work: W = F · d = Fdcos(α)

  Potential Energy: PE = m·g·h

  Kinetic Energy: KE = m·v2/2

  Mechanical Energy: E = KE + PE

  Instantaneous Power: P = F·v

  The Work-Energy Theorem: W = ΔKE

  Gravitation Formulas

  Newtonian gravity formula: Fg = G·m·M/R2

  Kepler's Third Law: T2/a3 = ct.

     以上是新航道SAT频道小编为大家整理的SAT物理力学公式,家可以在备考SAT2物理考试中力学部分的时候,根据自己的需要对不同的知识点进行参考。希望对大家有帮助,更多资讯、资料请访问新航道SAT频道http://www.xhd.cn/sat/

相关文章 查看更多

雅思备考工具箱

热门活动 更多

热门课程 更多