Balloon And Static Electricity Lab Report

Static Electricity Virtual Lab Name: __________________________
Physical Science Date: ___________________________

Part I: Balloons and Static Electricity:

Go to https://phet.colorado.edu/en/simulation/balloons-and-static-electricity

1) Before moving the balloon, how many positive and negative signs are on the balloon?
4 positive and 4 negative
2) Use your mouse pad to rub the balloon against the sweater.
-What are the charges that are NOW found on the balloon? All the sweaters negative charges are on the balloon and the balloon is sticking to the sweater.

-What are the charges now found on the sweater? Just a bunch of positive charges no negative any more

-What happens when you let go of the balloon? It sticks to the sweater.

3) Take your
It is stopped because same charges repel.

-Why did the charges on the wall move the way they did after the balloon touched the wall? Because they were being repelled by the negative charges on the balloon.

4) Now, reset the balloons, chose the icon that has the yellow and green balloons together on it, and press the button that removes the wall.

5) Using the yellow balloon, rub half of the positive charges off of the sweater.

6) Then, using the green balloon, rub the other half of the positive charges off of the sweater.
-What happens when you try to touch these two balloons together after rubbing off of the charges? They repel each other because of all the negative charges.

-Put both balloons as far away from the sweater as you can (in the area where the wall use to be). Let go of the balloons. How do the balloons react to each other? They slowly move towards the sweatshirt.

-Why do the balloons act the way they do in the last question? Because all the negative charges are attracted to the positive charges on the sweater.