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