Part 1. Charge the yellow balloon by rubbing it against the sweater. To do this start the simulation, then click on and drag the yellow balloon over to the sweater and rub it against the sweater. The balloon will pick up negative charges (electrons) from the sweater. Confirm that the balloon is charged by dragging it away from the sweater and then releasing the balloon. The negatively charged balloon will be attracted to the positively charged sweater. This method of charging objects by transferring charges between them is called charging by friction or rubbing. I Part 2. Charge the wall by bringing the charged yellow balloon near it. The negative charges of the wall are repelled from the balloon and move away, while the positive charges remain in place. Observe that when you now touch the balloon to the wall it will stick to the wall. This method of charging is known as charging by polarization. It requires the presence of polar molecules such as those in the materials in the wall. These polar molecules have a limited freedom to move, and they respond to charges by the slight shifts in their electron clouds. K e to search Text Predictions: On Accessibility: Investigate Hi Focus 94°F Mostly cloudy F AGE

Part 1. Charge the yellow balloon by rubbing it against the sweater. To do this start the simulation, then click on and drag the yellow balloon over to the sweater and rub it against the sweater. The balloon will pick up negative charges (electrons) from the sweater. Confirm that the balloon is charged by dragging it away from the sweater and then releasing the balloon. The negatively charged balloon will be attracted to the positively charged sweater. This method of charging objects by transferring charges between them is called charging by friction or rubbing. I Part 2. Charge the wall by bringing the charged yellow balloon near it. The negative charges of the wall are repelled from the balloon and move away, while the positive charges remain in place. Observe that when you now touch the balloon to the wall it will stick to the wall. This method of charging is known as charging by polarization. It requires the presence of polar molecules such as those in the materials in the wall. These polar molecules have a limited freedom to move, and they respond to charges by the slight shifts in their electron clouds. K e to search Text Predictions: On Accessibility: Investigate Hi Focus 94°F Mostly cloudy F AGE

University Physics Volume 2

18th Edition

ISBN:9781938168161

Author:OpenStax

Publisher:OpenStax

Chapter7: Electric Potential

Section: Chapter Questions

Problem 70P: A simple and common technique for accelerating electrons is shown in Figure 7.46, where there is a...

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A common demonstration involves charging a rubber balloon, which is an insulator, by rubbing it on your hair and then touching the balloon to a ceiling or wall, which is also an insulator. Because of the electrical attraction between the charged balloon and the neutral wall, the balloon slicks to the wall. Imagine now that we have two infinitely large, Hat sheets of insulating material. One is charged, and the other is neutral, lf these sheets are brought into contact, does an attractive force exist between them as there was for the balloon and the wall?