P4 CIRCUIT AND RESISTANCE

• (EQUATION) weight=

  mass x gravitational field strength
• EQUATION) work done=

  force x distance (along the line of action of the force)
• EQUATION) force applied to a spring=

  spring constant x extension
• EQUATION) moment of a force=

  force x distance (normal to direction of force)
• EQUATION)pressure=

  force normal to a surface/area of that surface
• EQUATION) distance travelled=

  speed x time
• EQUATION) acceleration=

  change in velocity/ time taken