What moves from one object to another when you rub a balloon on your hair?
AAtoms
BProtons
CElectrons
DLight
When you rub a balloon on your hair, electrons transfer from your hair to the balloon, giving the balloon a negative charge.
Question 2 True / False
A balloon rubbed on your hair can stick to a wall because of static electricity.
TTrue
FFalse
Answer: True
The charged balloon induces an opposite charge on the wall's surface, creating an attractive force that holds the balloon up.
Question 3 Short Answer
Why do you sometimes feel a shock when you touch a metal doorknob after walking across carpet?
Think about your answer, then reveal below.
Model answer: Electrons built up on your body from the carpet transfer to the doorknob as a spark.
Walking on carpet causes electrons to transfer to your body. When you touch a metal doorknob, the excess charges jump to the metal, which you feel as a small shock.