Lesson Plan: 1P.1.03

Hamble Lesson Observation Plan
Learning About
What is Friction?
Keywords:
  • Friction (2)
  • Surfaces (1)
  • Roughness: A measure of the microscopic surface of an object. (1)
  • Friction: The force caused by the rubbing of two different surfaces resulting in an increase in temperature (1)
  • Surfaces: The area of one side of an object. (1)
Memory Anchor:
Method Precise Learning Objective Linked Question / Activity
(Designed for maximum working out)		 Stepping Stones Pitstop Check
(Thinking Map)
T Rubbing causes friction between surfaces. How can we cause friction?
W The amount of friction depends on the roughness of the surfaces (and closing force). What does the amount of friction depend on?

Different grit sandpaper Blu-tacked to planks. Raise one end of the plank until a 100g mass on the sandpaper starts to slide. Measure the height of the end of the ramp (or angle) analogous to magnitude of friction. Repeat with 1kg mass to show closing force
T Friction always acts to resist motion and therefore acts in the opposite direction to the (potential) motion. In what direction does friction always act in relation to motion?
Links To the Big Ideas
ForcesParticlesEnergyCells