Formulas

• v = u + at

  1. final velocity v

  2. initial velocity u

  3. acceleration a

  4. time t
• s = ut + (1/2)at^2


  displacement s
• F = ma


  • force F
  • mass m
  • acceleration a
• W = F * d


  1. work W

  2. force F

  3. displacement d
• E = mc^2


  mass-energy equivalence
• P = W/t


  1. power P

  2. work done W

  3. time t
• ρ = m/V


  1. density ρ

  2. mass m

  3. volume V
• P = F/A


  1. pressure P

  2. force F

  3. area A
• v = f * λ


  1. wave speed v

  2. frequency f

  3. wavelength λ
• f = 1/T


  1. frequency f

  2. time period T
• T = 1/f


  1. time period T

  2. frequency f
• V = IR


  1. potential difference V

  2. current I

  3. resistance R
• P = VI


  1. power P

  2. potential difference V

  3. current I
• Q = It


  1. charge Q

  2. current I

  3. time t
• E = VQ


  1. electrical energy E

  2. potential difference V

  3. charge Q
• R = V/I


  1. resistance R

  2. potential difference V

  3. current I
• V_T = V_1 + V_2 + V_3 + ...

  total potential difference in series circuit
• I_T = I_1 = I_2 = ...

  total current in series circuit
• 1/R_T = 1/R_1 + 1/R_2 + ...


  total resistance in parallel circuit
• V = I(R_1 + R_2 + ...)

  potential difference in parallel circuit
• F = BIl


  1. force F

  2. magnetic field B

  3. current I

  4. length l
• F = BQv


  1. force F

  2. magnetic field B

  3. charge Q

  4. velocity v
• Q = ne


  1. charge Q

  2. number of charges n

  3. elementary charge e
• E = hf


  1. energy of a photon E

  2. Planck's constant h

  3. frequency f
• E = QV


  1. electrical energy E

  2. charge Q

  3. potential difference V
• P = E/t


  1. power P

  2. energy E

  3. time t