Question

A student rubs a balloon made of rubber on his hair and notices that the balloon sticks to his hair afterwards. What happened to the electrical charges of both the student’s hair and the balloon?(1 point)
Responses

The balloon’s charge became neutral, and the hair’s charge became positive
The balloon’s charge became neutral, and the hair’s charge became positive

The balloon’s charge became negative, and the hair’s charge became negative
The balloon’s charge became negative, and the hair’s charge became negative

The balloon’s charge became negative, and the hair’s charge became positive
The balloon’s charge became negative, and the hair’s charge became positive

The balloon’s charge became positive, and the hair’s charge became positive

Answer 1

When the balloon is rubbed against the student's hair, electrons are transferred from the hair to the balloon. This results in the balloon acquiring a negative charge (due to the gained electrons), while the student's hair loses electrons and becomes positively charged.

So the correct response is:

**The balloon’s charge became negative, and the hair’s charge became positive.**