Physics 121
Unit 5: Work & Energy

Reading:

Sections 6.0 – 6.1, 6.3 – 6.10

Homework:

Chapter 6

Questions:  1, 2, 12, 25
Problems:    7, 20, 22, 29, 40, 42, 50, 71, 86

Dates:

• Homework Due Chapter 6           Wednesday, April 7^th, by 5:00p.m.
• **Quiz on Unit 5                       Friday, April 9^th
• **Reading Quiz Chapter 7          Monday, April 12^th

***Homework may be turned in during class, or placed in the box outside of my office before 5:00 p.m.

Some Important Concepts from Chapter 6

• In physics, the word "work" has a very precise meaning.  What are the essential elements needed in order for work to be done? 
• What is the difference between work done by and object and work done on an object? 
• What is the result of doing net-work on a system? 
• What is kinetic energy? 
• What is potential energy? 
• How does it relate to work? 
• What are some different types of potential energy? 
• How do non-conservative and conservative forces differ? 
• When is the total mechanical energy conserved?  When is total energy conserved? 
• What does "power" mean in physics?

Developer: Dr. Joseph W. Howard
Salisbury University
Last modified March 31, 2004 @15:24EST
Copyright © Joseph W. Howard. All rights reserved.
Salisbury, Maryland 21801-6862