Question

Lucas rubs a plastic ruler on his sweater. He waves the ruler above a pile of shredded paper and notices that the pieces of paper get attracted to the ruler. Which attractive force is responsible for this? A) tension force B) normal force C) magnetic force D) electric force

Answer 1

D. electrical force because while he rubs the ruler on his sweater, he is creating static electricity.

Answer 2

D) electric force is responsible for this phenomenon.

Here, electrons transferred from ruler to his sweater, so when it comes close to paper, it attracts them and the force is known as "Electric force"

Hope this helps!