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How do you solve conservation of energy problems?

posted Feb 8, 2020, 12:20 PM by Barbara Fortunato   [ updated Feb 9, 2020, 4:44 AM ]
6: W 2/12, 8: W 2/12

Three quizzes TODAY - (1) Quiz on conservation of energy problems (no springs), (2) Lab quiz on pendulum, & (3) Lab quiz on springs.  

Then if there's time, we'll continue studying elastic potential energy by watching these videos by Dan Fullerton if you have not yet done so: 

Springs and Hooke's Law (Dan Fullerton)

Watch examples during time 7:45-11:05 only, unless you want more practice with other conservation of energy problems.

Conservation of Energy (Dan Fullerton)

Finally, here's a more complex example like what you'll see on the test. (Think about how you'd do this with our Before & After diagram and our conservation of energy equation. Remember that the spring force is a conservative force.)

Physics - Mechanics: Energy, Work and Power (Michael van Biezen)

Then work on the problems in Work, Energy, and Power Review Problems Page 1 SOLUTIONS.  If you finish all of those, you may try some additional problems from PedersonScience.com.  
Handouts:  Work, Energy, and Power Review Problems 
Homework:  Make sure you've done a great deal of the problems above.  The purpose is to identify where you might be struggling.  If you have any questions, bring them up next class. Work, Energy, and Power Review Solutions (page 2 only). Test on Work and energy on Thursday, February 20th.