1. Conservation of energy problems

2. What would be the kinetic energy of a pile driver when it undergoes 10J decrease in potential energy
PE=KE= 10J

3. Discuss the design of the roller coaster shown in the sketch in terms of the conservation of energy
Summit is the same height so PE will stay the same. Some energy goes to friction. So car would not be able to get over 2nd hill

4. On a slide a child has potential energy that decreases by 1000J while her kinetic energy increases by 900J. What other form of energy is involved and how much
100J of thermal energy from the friction of the slide

5. If an automobile had a 100% efficient engine, transferring all of the fuel’s energy to work would the engine be warm to your touch? Would it make any noise?
NO all energy would go to the engine’s work and none of the energy would be transferred

6. Types of Energy Mechanical- Chemical Thermal-
Electrical/ Electromagnetic
Nuclear-

7. List the sequence of energy forms for each item.
Hairdryer
Coffeepot
Windmill
IPOD
Car driving

8. Energy Conversions?

9. Similar Test Question!!!!!! You throw a ball up and it comes back down again. Answer the following:
When is KE at its highest?: ________
When is PE at its highest?: _________
When is KE equal to zero?: _________
When is the total amount of energy at its highest?_______
E- All the same D C C B B A A