Physics - Formulas

• Average Speed Formula

  Average Speed = Distance/Time
• Acceleration Formula

  Acceleration = Change In Velocity/Time Taken
• Final Velocity Formula

  v² = u² + 2as

  
  

  V = Final Speed

  U = Initial Speed

  A = Acceleration

  S = Distance
• Speed in distance-time graphs formula

  Speed = Gradient = Vertical/Horizontal
• Velocity-Time Graphs Acceleration Formula

  acceleration = gradient = vertical/horizontal
• Weight Formula

  Weight = Mass X Gravititational Field Strength
• Resultant Force Formula

  Force = Mass X Acceleration
• Stopping Distance Formula

  Stopping Distance = Thinking Distance + Braking Distance
• Formula linking Voltage, Current and Resistance

  Voltage = Current X Resistance
• Formula for Charge

  Charge(Q)= Current X Time
• Formula for Energy Transferred

  Energy Transferred(J) = Charge X Voltage
• Formula for Electrical Power

  Electrical Power = Current X Voltage
• Formula for Energy Transferred that includes Current and Time

  Energy Transferred = Current X Voltage X time
• Stopping Distance Formula

  Stopping Distance = Thinking Distance + Braking Distance
• Momentum Formula

  Momentum = Mass X Velocity
• Force Formula


  Force = Change in Momentum (v-u) / Time
• Moment Formula


  Moment = Force X perpendicular distance between line of action and pivot
• Wave Speed


  Speed = Frequency x Wavelength
• Frequency Formula


  F = 1/Time
• Snell's Law Refractive Index Formula 


  n = Sin(i)/Sin(r)
• Snell's Law Critical Angle Formula

  SinC = 1/n
• refractive index formula including speed of light of vacuum and in that material


  n = Speed of light in a vacuum (c) / Speed of light in that material (v)
• Work Done formula


  Work Done = Force X Distance Moved
• Power Formula


  Power = Work Done / Time Taken
• Kinetic Energy Formula


  KE = 1/2 x mass x speed²