Physics

• pressure=


  force/area
• power=


  word done/ time taken
• work done=

  force x distance
• weight=


  mass/ gravity
• velocity

  displacement/ time
• acceleration=


  rise/ run
• efficiency

  useful output/ total input
• potential energy


  mass x gravity x height
• newtons law


  an object will remain at rest of a constant speed unless acted on by an unbalanced force
• kinetic energy


  half x mass x velocity2