p1 p2 p3 p4 equations (mocs)

• kinetic energy= 


  0.5 x mass x speed squared
• weight=


  mass x gravitational field strength
• gravitational potential energy=


  mass x gravitational field strength x height
• power=


  energy transferred / time
• power=


  workdone / time
• efficiency= 


  useful output energy transfer / total input energy transfer
• efficiency= 


  useful power output / total power input
• charge flow=


  current x time
• potential difference= 


  current x resistance
• power=


  potential difference x current
• power=


  current squared x resistance
• energy transferred 


  power x time
• energy transferred 


  charge flow x potential difference
• density=


  mass / volume