1. Physics 2-13-08

2. Mousetrap lists Hand in Answer questions

3. Question A pulley system lifts a 1345 N weight a distance of 0.975 m. Paul pulls the rope a distance of 3.90 m, exerting a force of 375N. A) What is the ideal mechanical advantage of the system? B) What is the mechanical advantage? C) what is the efficiency?

4. What is energy? Related to Work done on object Related to Work done on the environment Currency

5. Relationship to work and units The amount of work done to an object is equal to the change in energy in creation and application of the force Work-energy theorem Units

6. Definition Energy is the ability to do work on an object or alter the surrounding environment

7. Like currency, energy comes in different types Kinetic Potential

8. Types of large scale Potential Energy Gravitational Elastic

9. Examples in life of Kinetic and Potential energy Paper Exercise Locate 10 examples of objects that possess Kinetic energy Locate 10 examples of objects that possess GPE Locate 5 examples of objects that possess EPE

10. Other types of energy