Question 1 What are non-contact forces.Give few examples? Question 2 When a plastic pen is rubbed in dry hair, it attracts tiny pieces of paper.Which force is involved in this process? Question 3 A small piece pulls iron nails from a distance.Which force is involved in this process? Question 4 An inflated balloon was pressed against a wall after it has been rubbed with … [Read more...] about Non-contact forces