Homework Answers
On a dry day, a balloon is rubbed against a wool sweater.
When the balloon is then brought close to a wood wall, then the balloon is attracted to the wall.
Which of the following statements is TRUE about this process?
The balloon
has a net charge charge on it, but the wall may be neutral (have no
net charge).
Explanation : When we rub a balloon against a wool sweater, then balloon may stick to the wall. This is due to an increase in the number of electrons on a balloon. The wall is now more positively charged than the balloon.
As the two come in contact, the balloon will stick because of the rule thats an opposite attract (positive to negative).
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