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35 Cards in this Set

  • Front
  • Back
Average Acceleration
ΔV / Δt ( change in velocity/ change in time)
Final Velocity
Vi + at (initial velocity + acceleration*time
Displacement
Δd = Vit + 1/2at2
Final Velocity
Vf2 = Vi2 + 2aΔd
Average Velocity
1/2 (Vi + Vf)
Gravitational Force
Fgrav = (GMm)/r2 where G=6.7x10-11N*m2/ kg2, M=mass 1, m=mass 2
Torque
τ = rFsinθ (r= radius, F=force)
Kinetic or Static Friction
F(friction)=μ FN (μ= coefficient of friction, FN= normal force= mg)
Centripital Acceleration
Ac =(velocity)2 / radius
Centripital Force
Fc= Mass * Accelerationcentri or Fc=(mass)(velocity)2/ (radius)
Work
W= Fd cosθ (force*displacement*cos angle)
Power
P= Work/time or P= Fd/t= Fv
Kinetic Nrg
KE = 1/2 (mass)(velocity)2 or KE=1/2mv2
Potential Nrg
PEgav=mgh (m= mass, g=gravity, h=height)
momentum
p = mv or p= mass * velocity
Impulse
Δpimpulse = Force * time or mVf - mVi
Kelvin
K= C+273
Celsius
C = K -273
Thermal Expansion
ΔL = α L ΔT
Volume Thermal Expansion
ΔV = β V ΔT
Heat Gained (Q)
Q = m c Δt (m= mass, c=specific heat of object, t= change of temp)
Heat Gained (Δphase)
Q = m * L (L=heat of transformation constant)
1st Law of Thermodynamics
ΔU = Q - W (Q=heat nrg and W=work)
2nd Law of Thermodynamics
ΔS of closed system will increase or remain unchanged
Density
ρ = mass / volume
Density of water
ΡH2O= 1000 kg/m3
Pressure
P = Force / Area (force must be perpendicular to object)
Absolute Pressure
Pabs= Patm + ρgh (ρ= density)
Definition of Pascal’s Law
A confined fluid transmits an externally applied change in pressure to all parts of the fluid equally.
Pascal’s Law
F1/A1 = F2/A2
Archimedes Principle (Boyant Force)
FBuoy= ρfluid Vsub g (where V is the volume of the object submerged and ρ is the density of the liquid)
Volume flow rate
f= Av (flow rate= cross sectional area * velocity)
Continuity Equation
A1V1=A2V2 (Velocity in different areas of a pipe)
Stress
F/A
Strain
ΔL/L (change in the objects length/ original length)