Thursday, March 5 – Friction

Current unit: Dynamics – Friction

• Attendance
  • Pick up the handout
• Quiz – Displacement, Velocity, and Acceleration – marks in spreadsheet, but not returned yet
• Review homework – Worksheet – Introduction to Forces
  • Worksheet Solutions – Introduction to Forces
  • Videos on gravity
• Whiteboard physics
  • Gravity on a planet – Jupiter, Mars, Uranus, Saturn, Pluto (not a planet), Sun (not a planet)
    • What data is needed to calculate g?
    • Data table for planet, data table for Sun
  • Video: gravity on 8 planets (animation)
• Crash Course Physics – Friction (watch first 5:10 only)
• Videos on friction
  • Discuss tug of war and dogs on ice – normal force vs. friction force
• Worksheet – Friction
  • Worksheet Solutions – Friction
  • Finish all questions for homework
• Wrap-up