Katie rubs a balloon against her hair electrons from her hair, traveled to the balloon, giving the balloon and negative charge and her hair is a positive charge when the negative charge balloon is brought near the strand of Katie’s hair that moved to the to get closer to the balloon without the balloon actually touching them it shows that

Answer 1

the strands of hair are attracted to the balloon due to the opposite charges - the negative charge of the balloon attracting the positive charge of the hair. This is due to the principles of static electricity and the interaction of charged particles.