Moments (T)

• What is meant by a moment in physics?

  It is the turning effect of a force.
• How is the moment of a force calculated?

  • Moment (in newton meters) = Force (in newtons) × Distance (in meters)
• What is the unit for moment?

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

  Because incorrect units will result in losing marks on the exam.
• What must be true about the distance when calculating a moment?

  The distance must be perpendicular to the pivot.
• What happens when you push a door with your finger closer to the hinge?

  • It becomes more difficult to close the door.
• How does the position of the force affect the moment?

  It affects the ease of rotation; further distances create larger moments.
• What is the equation used to calculate the moment?

  Moment (N·m) = Force (N) × Distance (m)
• If a force of 50 newtons is applied at a distance of 0.3 meters, what is the moment?

  15 N·m
• What is the significance of using the perpendicular distance in moment calculations?

  • It ensures accurate calculation of the turning effect of the force.
• What is the moment produced by a force of 75 newtons at a perpendicular distance of 1.2 meters?

  90 N·m
• Why is it stated that you do not need to worry about perpendicular distance in exams?

  Because the exam will provide the necessary information for calculations.