Log on to http://phet.colorado.edu/simulations/electrichockey/webstart.jnlp.

Force a charge around two physical barriers and into the net using fixed charges.

1. When you are ready for a challenge, click the RESET and CLEAR buttons and select Difficulty: 1. Your goal is to get the black positive charge around the physical barrier and into the net.
2. Add and move charges by clicking and dragging each charge.
3. Click the RESET button.
4. Release the black positive charge by clicking the START button. Note the relationship between the charge's path and the strength and direction of the electric field along its path.
5. Repeat steps 2 through 4 after each trial is complete, attempting to get the black positive charge into the net.
6. When have scored a goal, note the number of tries it took you and any observations you have about the process and what you learned.

REPORT ON YOUR OBSERVATIONRESET