SAT物理常用公式

SAT物理常用公式有哪些?SAT物理考试是很多同学比较头疼的一个科目，掌握SAT物理常用公式，对于提升SAT物理成绩有很大帮助，下面和小编一起来看看吧!

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)

Averagevelocity:vav=Δd/Δt

Averageacceleration:aav=Δv/Δt

Rotationalkinematicsequationswithconstantangularacceleration:

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)

Averageangularvelocity:ωav=Δθ/Δt

Averageangularacceleration:αav=Δω/Δt

Frequency:f=ω/2π

Period:T=2π/ω

Relation**etweenangularandlinearvariables:

l=Φ·r

v=ω·r

a=α·r

DynamicsFormulas

Pressure:P=F/A

Newton'sSecondLaw:F=m·a

Forceofkineticfriction:Ff=μ·N

Hooke'sLaw:F=-k·x

CentripetalForce:Fc=m·v2/R

Centripetalacceleration:ac=v2/R

Work,Energy,ConservationLawsFormulas

Work:W=F·d=Fdcos(α)

PotentialEnergy:PE=m·g·h

KineticEnergy:KE=m·v2/2

MechanicalEnergy:E=KE+PE

InstantaneousPower:P=F·v

TheWork-EnergyTheorem:W=ΔKE

GravitationFormulas

Newtoniangravityformula:Fg=G·m·M/R2

Kepler'sThirdLaw:T2/a3=ct.