Energy 2

Date: 2/13/14 and 2/18/14

Class: Physical Science

Periods: W1,2,4 and B2

Outcomes: Students will calculate GPE and KE of falling objects and diagram changes in GPE and KE of a pendulum.

Standards: UCP.2,3,5; A.1,2; B.2,4; G.3

Student Needs: 

Assessment Plan: Lab report

Lesson Outline: Ask students What is Kinetic Energy? What is Potential Energy? What are the 3 forms of Potential Energy? > Notes over Ch. 4 > Lab Activity (falling and pendulum) > Finish Ch. 4 Review

Review: Ask students What is Energy? What is Kinetic Energy? What is Potential Energy? What are the 3 forms of Potential Energy?

Anticipatory Set/Opening: Pendulum in the middle of the room

Key Points: As things fall, their GPE is transformed into KE, pendulums and swings involve several changes in energy

Teaching Input: asking review questions, giving directions for lab: measure a certain height and mark it on the wall (aim for between 2m and 3m) > time how long it takes for the object to fall that distance > calculate the GPE of the object using mgh and then KE using the average speed as it fell so d/t to get v then 0.5mv^2 > demonstrate pendulum

Modeling: Demonstrate setup, calculations and pendulum

Checking for Understanding: have students repeat directions

Guided Practice/Monitoring: Lab activity and practice problems

Closure: Discuss why pendulums stop and why their GPE’s and KE’s might not match

Independent Practice: Partner up on Ch. 4 Review

Reflection: