# Shared Flashcard Set

## Details

Physics
MCAT physics equations
76
Physics
08/25/2013

Term
 Hook's Law
Definition
 F=-KΔx
Term
 Kinetic Friction
Definition
 fk=µkFn
Term
 Speed
Definition
 v=d/t
Term
 velocity (definition)
Definition
 v=d/t
Term
 acceleration
Definition
 a=Δv/t
Term
 displacement
Definition
 x=x0+vot+1/2at2
Term
 velocity
Definition
 v=v0+ at
Term
 average velocity
Definition
 vavg=(v+v0)/2
Term
 velocity when initial velocity is 0
Definition
 v=√2gh
Term
 velocity2
Definition
 v2= v02 + 2ax
Term
 Newton's Second Law
Definition
 F=ma
Term
 Gravity
Definition
 F=G(m1m2)/r2
Term
 Inclined planes- normal force + gravity
Definition
 F=mgsinΘ
Term
 Inclined planes
Definition
 Fn=mgcosΘ
Term
 centripetal acceleration
Definition
 ac=v2/r
Term
 force for centripetal acceleration
Definition
 Fc=m(v2/r)
Term
 static friction
Definition
 fs≤µsFn
Term
 Kinetic friction
Definition
 fk=µkFn
Term
 Equilibrium (no acceleration)
Definition
 Fupward=Fdownward Frightward=Fleftward τclockwise=τcounterclockwise
Term
 Non-equilibrium (acceleration)
Definition
 Fupward=Fdownward ±ma Frightward=Fleftward ± ma   add ma to the weaker side
Term
 Torque
Definition
 τ=Fl
Term
 Kinetic Energy
Definition
 K= (1/2) mv2
Term
 Potential energy due to gravity
Definition
 Ug=mgh
Term
 Potential energy
Definition
 Ue=(1/2)kΔx2
Term
 Work- no friction
Definition
 W=Fdcosθ
Term
 Work- no heat
Definition
 W= ΔK+ΔU+ΔEi
Term
 Power (with energy)
Definition
 P=(ΔE/t)
Term
 Power (with speed)
Definition
 P=FvcosΘ
Term
 Momentum
Definition
 p=mv
Term
 Inelastic collisions
Definition
 pinitial=pfinal
Term
 Elastic collisions
Definition
 pinitial=pfinal Kinitial=Kfinal
Term
 Impulse
Definition
 FavgΔt=Δmv
Term
 rest mass energy
Definition
 E=mc2
Term
 Density
Definition
 p=(m/v)
Term
 Specific Gravity
Definition
 S.G.=(ρsubstance/ρwater)
Term
 Pressure in fluids
Definition
 P≡F/A
Term
 Pressure of fluids at rest
Definition
 P=ρgy
Term
 Boyant Force
Definition
 Fboyant=ρVg
Term
 Continuity equation
Definition
 Q=Av
Term
 Bernoulli's equation
Definition
 K=P+ρgh+(1/2)ρv2
Term
 Stress
Definition
 Stress=F/A
Term
 velocity of motion
Definition
 v=√2gh
Term
 Modulus of elasticity
Definition
 stress/strain
Term
 velocity of waves
Definition
 v=fλ
Term
 Period
Definition
 T=(1/f)
Term
 Decibles
Definition
 β=10log(I/I0)
Term
 beat frequency
Definition
 fbeat=|f1-f2|
Term
 Length of string (two ends tied down)
Definition
 L=(nλn/2) n=1,2,3,4....
Term
 length of string (one end tied down)
Definition
 L=(nλn/4)n=1,3,5,7....
Term
 Doppler effect (frequency)
Definition
 (Δf/fs)=(v/c)
Term
 Doppler effect (wavelength)
Definition
 (Δλ/λs)=v/c
Term
 Force of electic fields due to point charge
Definition
 F=k(q1q2/r2)
Term
 Energy of electric fields due to a point charge
Definition
 E=k(q1/r2)
Term
 Potential energy of electric fields due to a point charge
Definition
 U=k(q1q2/r)
Term
 Voltage of electric fields due to a point charge
Definition
 V=k(q1/r)
Term
 Force on constant electric fields
Definition
 F=Eq
Term
 Potential energy of constant electric fields
Definition
 U=qEdU=Vq
Term
 Voltage of constant electric fields
Definition
 V=Ed
Term
 Voltage of a resistor
Definition
 V=iR
Term
 Resistors in a series
Definition
 Reff=R1+R2+....
Term
 Resistors in parallel
Definition
 (1/Reff)= (1/R1) + (1/R2) +....
Term
 Power of resistors
Definition
 P=iV P=i2R P=(V2/R)
Term
 Capacitance
Definition
 C=Q/V
Term
 Capacitors in series
Definition
 (1/Ceff)= (1/C1) + (1/C2) +.....
Term
 Capacitors in parallel
Definition
 Ceff=C1+C2+.....
Term
 Potential energy of capacitors
Definition
 U=(1/2)QV   U=(1/2)(Q2/C)   U=(1/2) CV2
Term
 Voltage of Alternating Current
Definition
 Vmax=(√2)Vrms
Term
 Intensity of an alternating current
Definition
 imax=(√2)irms
Term
 Index of refraction
Definition
 n=c/v
Term
 Speed of light
Definition
 c=fλ
Term
 Snell's law
Definition
 n1sinΘ1=n2sinΘ2
Term
 Energy of a single photon
Definition
 E=hf E is energy not electric field
Term
 Focal length of mirrors
Definition
 fmirror=(1/2)r
Term
 Power of lenses
Definition
 P=1/f
Term
 lateral magnification
Definition
 m=(-di/d0)=(hi/h0)
Term
 angular magnification (thin lens equation)
Definition
 (1/f)= (1/d0)+(1/di)
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