# Work and Energy: page 4

Work and Energy Lessons / Tutorials: Click here for Ms. Twu's Work and Energy Practice Problems, Work and Energy Notes

Work and Energy: page 1 (Videos 1 to 6: Work)

Work and Energy: page 2 (Videos 7 to 10: Potential energy, conservation of energy (with no friction and no spring))

Work and Energy: page 3 (Videos 11 to 15: Conservation of energy (with friction and no spring), spring problems)

Work and Energy: page 4 (Videos 16 to 20: Conservation of energy (with spring and friction), units, Joule's experiment)

Work and Energy: page 5 (Videos 21 to 24: Power, simple machines, circular track problem, multiple-choice questions)

• AP Physics 1: Work and Energy 16: Conservation of Energy: Vertical Spring Problem
• AP Physics 1: Work and Energy 17: Conservation of Energy: Bungee Jump Problem
• Macau Bungy jump - World's Tallest Bungy In this video, it looks like the jumper fell for 5 seconds (1:47 to 1:52) before the cord began to stretch. So I calculated the distance fallen (½ g t2) in 5 seconds to be about 125m. That’s what I used for the relaxed length of the bungee cord. In this video, we can see that the cord looks wavy even when the bungee cord was stretched. That is because there are waves traveling through the cord. We will study waves in the last ~ ¼ of the curriculum.
• World's Tallest Bungee Jump HD (233m) Macau 2012 You can see the side view of the jump and the tower in this video.
• AP Physics 1: Work and Energy 18: Conservation of Energy: with Friction
• AP Physics 1: Work and Energy 19: Units
• AP Physics 1: Work and Energy 20: Joule’s Experiment

Work and Energy: page 1 (Videos 1 to 6: Work)

Work and Energy: page 2 (Videos 7 to 10: Potential energy, conservation of energy (with no friction and no spring))

Work and Energy: page 3 (Videos 11 to 15: Conservation of energy (with friction and no spring), spring problems)

Work and Energy: page 4 (Videos 16 to 20: Conservation of energy (with spring and friction), units, Joule's experiment)

Work and Energy: page 5 (Videos 21 to 24: Power, simple machines, circular track problem, multiple-choice questions)