Describe the difference between contact and non-contact forces, providing one example of each.

Contact forces require physical interaction between objects, such as friction when two surfaces rub against each other. Non-contact forces act at a distance, such as gravitational force, which pulls objects towards each other without direct contact.

This question assesses the ability to distinguish between two fundamental types of forces in physics. It encourages students to think critically about interactions in the physical world and apply their knowledge to identify real-world examples.