Energy Part 3

Pace: 10 class periods

BIG IDEAS
P4.3 Potential and Kinetic Energy Moving objects have kinetic energy. Objects experiencing a force may have potential energy due to their relative positions (e.g., lifting an object or stretching a spring, energy stored in chemical bonds). Conversions between kinetic and gravitational potential energy are common in moving objects. In frictionless systems, the decrease in gravitational potential energy is equal to the increase in kinetic energy or vice versa. 
Standards Covered:

9 Pretest and DifferentiationIf you score a 90% or above on this pretest on your first attempt you will not need to complete any of the practice for this unit and an accelerated assignment will be provided. The pretest is not open internet or buddy or book. This pretest will be timed and may only be completed in class.

Chapter 9 PDF Textbook and Notes

9.4 Potential Energy
6 January
p 148149
Big Idea: Three examples of potential energy are elastic potential energy, chemical potential energy, and gravitational potential energy

Standard(s):
4.3 A 
BOOK NOTES:
1. Use the key terms and your text to complete Cornell Notes for this section. Include diagrams and examples as much as possible. WEB NOTES
2. Add to your 9.4 Cornell Notes using the online learning module from Education Portal, What is Potential Energy (expires 4 February). Complete the quiz and record in your notebook. WEB PRACTICE 1 Complete the 2 online practice problems at the VERY BOTTOM of the webpage in your notebook. 
Terms to Know:
elastic potential energy chemical potential energy gravitational potential energy work formula: W = Fd PE=mgh (gravitational potential energy = weight x height) 
9.5 Kinetic Energy
7 January
pg 150
Big Idea: The kinetic energy of a moving object is equal to the work required to bring it to its speed from rest, or the work the object can do while it is being brought to rest

Standard(s):
4.3A 
BOOK NOTES:
1. Use the key terms and your text to complete Cornell Notes for this section. Include diagrams and examples as much as possible. WEB NOTES 2. Add to your 9.5 Cornell Notes using the online learning module from Education Portal, Kinetic Energy (expires 4 February). Complete the quiz and record in your notebook. WEB PRACTICE 1 Complete the 13 online practice problems at the VERY BOTTOM of the webpage in your notebook. 
Terms to Know:
kinetic energy KE=1/2mv^2 (kinetic energy = 1/2 mass x speed^2) Fd=1/2mv^2 (net force x distance = kinetic energy) 
9.6 WorkEnergy Theorem
pg 151152
8 January
Big Idea: The workenergy theorem states that whenever work is don, energy changes.

Standard(s):
4.3B 
BOOK NOTES:
1. Use the key terms and your text to complete Cornell Notes for this section. Include diagrams and examples as much as possible. VIDEO NOTES:
2. Add to your 9.6 Cornell Notes using the online learning module from Education Portal, WorkEnergy Theorem: Definition and Application (expires 5 February). PRACTICE: 3. Complete the video quiz and record in your notebook. 
Terms to know:
workenergy theorem  
910 January = Snow Days
Do not complete after this line
9.7 Conservation of Energy
pg 153154
9 January
Big Idea: The Law of Conservation of Energy states that energy cannot be created or destroyed. It can be transformed from one form into another, but the total amount of energy never changes.
BOOK NOTES:
1. Use the key terms and your text to complete Cornell Notes for this section. Include diagrams and examples as much as possible. WEB NOTES 2. Add to your 9.7 Cornell Notes using the online learning module from Education Portal, Conservation of Mechanical Energy (expires 5 February). Complete the quiz and record in your notebook. PRACTICE 1 Complete Concept Development 91. Paper copies are provided in class.

Standard(s):
4.3B Terms to Know: Law of Conservation of Energy transforms Kinetic Energy Potential Energy Joule 
9.8 Machines
pgs 155157
10 January
BIG IDEA:
A machine transfers energy from one place to another or transforms it from one form to another. BOOK NOTES: 1. Use the key terms and your text to complete Cornell Notes for this section. Include diagrams and examples as much as possible. WEB NOTES 2. Add to your 9.7 Cornell Notes using the online learning module from Education Portal, What Are Simple Machines? (expires 6 February). Complete the quiz and record in your notebook. PRACTICE 1 Complete Lab 27 Muscle Up! Paper copies are provided in class.

Standard(s):
4.3B Terms to Know: machine level fulcrum mechanical advantage pulley input output 