Name ______Period _____
Conservation of Energy Diagrams-Notes
For each situation shown below:
1. Show your choice of system in the energy flow diagram, unless it is specified for you.
**Always include the earth in your system.
2. Decide if your system is frictionless or not, and state this.
3. Sketch an energy bar graph for the initial situation.
4. Then complete the analysis by showing energy transfers and the final energy bar graph.
1. A moving car, moving up a hill, coasts to a stop up on top.
Initial Energy Flow Final
Ek Eg Eel Ek Eg Eel Ediss
2. A moving car, moving up a hill, coasts to a stop up on top.
Initial Energy Flow Final
Ek Eg Eel Ek Eg Eel Ediss
3. A car on a roller coaster track, launched by a tightly coiled spring, makes it to the top of the loop and is still moving.
Initial Energy Flow Final
Ek Eg Eel Ek Eg Eel Ediss
4. A car on a roller coaster track, launched by a tightly coiled spring, is in the middle of its motion up the loop.
Initial Energy Flow Final
Ek Eg Eel Ek Eg Eel Ediss
5. A person pushes a stalled car to get it to the service station.
Initial Energy Flow Final
Ek Eg Eel Ek Eg Eel Ediss
6. A crate, starting at rest, is propelled up a hill by a tightly coiled spring.
Initial Energy Flow Final
Ek Eg Eel Ek Eg Eel Ediss
7. Chuck Norris, stopping a speeding locomotive, is pushed backwards a few meters in the process.
Initial Energy Flow Final
Ek Eg Eel Ek Eg Eel Ediss
8. Create an energy flow diagram for the “Phooling Around in Physics” Activity where the car was making a jump across an opening. Make the initial condition when the car was elevated along the track but not yet released. Make the final condition when the car was at its highest point in the jump.
Initial Energy Flow Final
Ek Eg Eel Ek Eg Eel Ediss