Question

Which of the following explains why your hair stand on end when you rub it with a ballon?

Answer 1

Static electricity

Step-by-step explanation:

When you rub a balloon against your hair, it generates static electricity. This phenomenon occurs due to the triboelectric effect, which is the transfer of electrons between two objects that come into contact and then separate. The friction between the balloon and your hair causes an imbalance of electrical charge, with the balloon gaining electrons and becoming negatively charged, while your hair loses electrons and becomes positively charged.

The reason your hair stands on end is due to the principle of electrical repulsion. Since like charges repel each other, the positively charged strands of hair repel each other, causing them to stand up and separate from one another. The effect is more pronounced when the hair is dry because dry hair is an insulator and does not allow the charges to dissipate easily.

In summary, the rubbing of the balloon against your hair generates static electricity, resulting in the hair strands becoming positively charged and repelling each other, causing them to stand on end.

I hope it helps. Cheers! ^^

Answer 2

Step-by-step explanation:

When you rub a balloon on your head, electrons move from the atoms and molecules in your hair onto the balloon. Electrons have a negative charge, so the balloon becomes negatively charged, and your hair is left with a positive charge.