work done

• What is work done in physics?

  Energy transferred when a force moves an object over a distance
• When does work done occur?


  Whenever a force is used to move something
• What is the formula for work done?

  Work done = force x distance
• What are the units for work done?

  Joules (J)
• What does the distance refer to in the context of work done?


  The same distance moved in the line of action of the force
• What are the key points about work done?

  • Work done is a transfer of energy.
  • Energy is transferred from one form to another (e.g., chemical to kinetic).
  • Work done depends on force and distance.
  • No movement or force means no work done.
  • Work is only done if movement occurs in the direction of the force.
• Why is no work done when pushing against a wall?


  Because the wall does not move