Moments

• What is the turning effect of a force called?

  Moment of the force
• What experiment demonstrates the concept of a moment?

  Closing a door with a finger
• What happens when you push a door closer to the hinge?

  It becomes more difficult to close
• How do you calculate the moment of a force?

  Moment = Force × Distance
• What is the unit for moment?

  Newton meter (N m)
• Why is it important to remember the unit for moment?

  Incorrect units lose marks in exams
• What must the distance be when calculating a moment?

  Perpendicular from the line of action
• What is the moment produced by a force of 50 newtons at a distance of 0.3 meters?

  15 newton meters
• What happens when the spanner is at an angle to the pivot?

  Perpendicular distance must be used
• What is the moment produced by a force of 75 newtons at a distance of 1.2 meters?

  90 newton meters
• Where can you find more questions on moments?

  • In the vision workbook
  • Available via a link in the video