Lesson Plan: 5P.1.03

Hamble Lesson Observation Plan
Learning About
What is a lever?
Keywords:
  • Force (2)
  • Newtons (1)
  • Pivot (1)
  • Moment: A turning effect caused by a force acting on a body not in the direction of the centre of mass of that body. (1)
  • Pivot: A point at which an object is restricted to rotational movement. (1)
  • Moment (1)
Memory Anchor:
Method Precise Learning Objective Linked Question / Activity
(Designed for maximum working out)		 Stepping Stones Pitstop Check
(Thinking Map)
When a force is applied offset from a pivot, the force produces a turning effect. This turning effect is known as a 'moment'. What is a moment?
W The size of a moment proprtional to two factors: -the size of the force applied -the perpendicular distance from the pivot to the line of action of the force What two factors is the size of a moment proportional to?

Experiment with levers and pivots. Turning effect w/s Page 1
W The size of a moment is the product of the size of the force applied and the perpendicular distance from the pivot to the line of action of the force

Turning effect w/s Page 2: Will the levers balance?
W The SI units of a moment are Newton Metres (Nm), although Ncm are commonly used. What unit do we use for moments?
Links To the Big Ideas
ForcesParticlesEnergyCells