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

Answer 1

The correct response is: The balloon’s charge became negative, and the hair’s charge became positive.

When the student rubs the balloon on his hair, electrons are transferred from the hair to the balloon. This results in the balloon gaining extra electrons, giving it a negative charge, while the hair loses electrons, resulting in a positive charge. This difference in charge causes the balloon to stick to the hair.