Physics Themed: Unit 13 "Work, Power & Simple Machines"

13- Work, Power & Simple Machines
Summary: In the last unit we learned about energy. But how do rollercoasters get their energy? Also, isn’t it better if you can move a rollercoaster into place quickly and not take forever? In this unit we solve these problems with work, power and simple machines. Simply put, work adds energy to objects (elevates them or speeds them up), power lets us do the work quickly and simple machines let us get work done using forces we can actually muster. In this unit we learn conceptually what are work and power, how to tell the difference between them and how to calculate their values. We also see examples of some of the most fundamental and important simple machines humans use. Weather permitting, we’ll find a nice day to do the power-up lab outside and because the cost of energy is such an important topic in our modern world, we’ll revisit energy costs which we originally studied in our electricity unit last fall.

Resources: Online book chapter 6, work packet, reading packets 2, 3, handouts


Unit 13: Work, power, simple machines

Objectives, Vocabulary & Equations

Objectives, vocabulary & equations

Other important files (resources)

  1. Reading packet 2,3
  2. Work packet (rollercoaster work, power, simple machines)

Tutorials (right-click and save file locally ("save target as"), then play)

  1. Notes 13-01A
  2. Notes 13-01B
  3. Notes 13-02
  4. Notes 13-03


More Links

  1. Unit Notes
  2. Projectile launcher project (Trebuchet)