Work Done and Energy Transfer

• What is the equation for work done?

  work done = force x distance (moved along the line of action of the force)
• What does work done mean?

  When a force causes an object to move
• What is required for an object to move?

  Energy
• When a force is used to move an object, work is done. What is the movement of the object called?

  Displacement
• Work is a simply a measure of energy transfer. What is the unit for Work done?

  Joule
• When a force of 1 N moves an object by 1 m , 1 J of work is done
• 1 newton-metre of work = 1 joule