Question

A boy pulls a sweater off over his head. What force is responsible for his hair being attracted to the sweater?
Responses
A a magnetic forcea magnetic force
B an applied forcean applied force
C an electric forcean electric force
D a friction force

Answer 1

The correct response is **C. an electric force**. When the boy pulls the sweater over his head, triboelectric effects can cause the sweater and his hair to become charged. This can create an attractive electric force between the charged sweater and his hair.