A balloon and a section of a wall both have neutral charges, as shown below.

Question

A student rubs his hair on the balloon, giving it a negative charge. How will the charges be arranged in the wall when it is placed near the negatively changed balloon?

(1 point)
Responses

The wall will have negative charges on the the side closer to the balloon
The wall will have negative charges on the the side closer to the balloon

The charges in the wall will not change or rearrange at all.
The charges in the wall will not change or rearrange at all.

The wall will have its positive charges on the side closer to the balloon
The wall will have its positive charges on the side closer to the balloon

The wall will now have all positive charges and no negative charges
The wall will now have all positive charges and no negative charges
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Answer 1

When a negatively charged balloon is brought near a neutral wall, the charges in the wall will rearrange due to electrostatic induction. The negatively charged balloon will repel the negative charges in the wall (electrons), causing them to move away from the side of the wall that is closer to the balloon. This results in a concentration of positive charges on the side of the wall that is closer to the balloon, while the side farther away will have a relative excess of negative charges.

Therefore, the correct response is:

The wall will have its positive charges on the side closer to the balloon.