Name: _________________________ Part A: Go to the following: http://phet.colorado.edu/en/simulation/balloons-and-static-electricity and click Play! 1) Take a moment to look at the items the simulator window is displaying (balloon, sweater, wall, charges, etc.) 2) a) Sketch the charges on the sweater AND the balloon in the BEFORE box to the left. b) Then, rub the balloon on the sweater and watch what happens! Draw the charges on both items in the AFTER box on the right. Sweater and balloon BEFORE Sweater and balloon AFTER Overall charge of sweater: __________ Overall charge of sweater: __________ Overall charge of balloon: ___________ Overall charge of balloon: ___________ 3) Remove the balloon from the sweater and attempt to place it directly in between the sweater and the wall. Do this several times and observe what happens. Explain why the balloon is attracted to one item more than the other. __________________________________________________________________________________ __________________________________________________________________________________ __________________________________________________________________________________ 4) Bring the balloon all the way to the wall so that they are touching and release it. Is the balloon is able to stick to the wall? Do you think it is as strong an attraction as to the sweater? Explain why or why not. __________________________________________________________________________________ __________________________________________________________________________________ __________________________________________________________________________________ 5) Click “Reset Balloon” and then click on the image of TWO balloons just above the “Reset Balloon” button. Figure out the following missions and draw diagrams demonstrating how you are able to accomplish each mission! a) Make the two balloons repel! b) Make the two balloons attract! Charges of Balloons: ________________ Charges of Balloons: _______________ ...
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