1. 9th Physical Science Week of Nov 16 th – Nov 20 th

2.  Introduction: Simple Machines – Mechanical Advantage – Work  Worksheet: Mechanical Advantage of Simple Machines 8:05 – 10:35/10:40 -- Testing in West Gym 10:45 – 11:15 -- Lunch (SW Cafeteria) 11:15 – 2:00/2:30 -- Team Activities (Off site)  Introduction: Energy & Conservation of Energy  Worksheet: Potential & Kinetic Energy  Introduction: Efficiency & Power  Worksheets: Efficiency and Energy - James Prescott Joule (Homework)  Worksheet: Work  Worksheet: Power

3. LEARNING TARGETS I can identify examples of simple machines. I can evaluate the mechanical advantaged of simple machines. I can tell what it means to “do work” in a scientific sense. I can describe how energy changes as systems change. I can discuss examples of energy transformation. I can explore energy involved in carrying out daily activities. I can describe relationship between work and power. I can apply a rule to determine the amount of power needed to do work. I can explore the meaning of efficiency in terms of input and output of work.

4. Next Quiz / Test : Tuesday November 24 th It will cover : Chapter 7, You will need to know : Simple machines – Mechanical Advantage [MA = F o / F i MA = L i / L o MA = Length / Height] – Work [W = F ˙ d] – Energy [chemical, radiant, nuclear, and mechanical] Potential Energy [PE = mgh] Kinetic Energy [KE = ½ mv 2 ] – Law of Conservation of Energy [Unit of energy – Joule] – Power [P = W/t] - [ Unit of power – Watt or Horsepower] – Efficiency [Eff = Output Work / Input Work]