Lever Arm Force Difference
Farther from pivot requires less force.
Teaching & key ideas
What you do: Lift same load with force applied near vs far from pivot.
What students see: Farther from pivot requires less force.
Why it works: Torque equals force times distance from pivot.
Question to ask: Why does a longer handle make lifting easier?
Lesson flow
Predict → demonstrate → observe → briefly explain → ask: Why does a longer handle make lifting easier?