Names _______________________________
leg
Electric Field Hockey Activity
http://phet.colorado.edu/en/simulation/electric-hockey
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Class Period _______
Date _________________________________
Go to the URL above. Click on “Run Now!”
The goal of this game is to get the black positive puck to go in the goal.
Click on “Reset” if you want to retry your current set up. Click on “Clear” if you want try a completely
new set up.
1.
How can you set up just one negative charge to score a goal? (Remember to hit start)
2.
How can you set up just one positive charge to score a goal?
Change the mass and see what happens.
3. What happens when the mass is lighter?
4.
Why does changing the mass affect the speed? (Think Newton’s 2nd Law.)
Reset – Put one positive charge on the surface and one negative charge directly below it.
Check the “Field” box. Do not hit the start button until instructed to do so.
5.
You may notice that the field lines are darker near the charges
and lighter as you move away from the charge. Why is this?
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6.
Draw the field lines on the diagram at right.
Be sure to use arrows to show the direction of the field.
7.
Predict how you think the puck will move.
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Hit start and see how accurate your prediction is.
8.
Set up 4 charges, with two positive and two
negative. Draw the field lines for this set up.
9.
Predict how you think the puck will move.
Hit start and see how accurate your prediction is.
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Now play the game. You can practice a little bit if you want.
Check the “Trace” option. Set difficulty to 1, then 2, then 3. Hint: leaving the field box checked might help you.
When you beat each level, show the position of positive and negative charges on the diagram and
trace the path of the puck.
10. Level 1 set up:
11. Level 2 set up:
12. Level 3 set up: