Final answer:
Force is applied when lifting a book or pushing a table. Lifting a book requires a vertical force to overcome gravity, while pushing a table requires a horizontal force to overcome friction.
Step-by-step explanation:
Force is applied when you lift a book or push a table. Force is a physical quantity that can cause an object to change its motion or shape. Lifting a book requires a vertical force to overcome the gravitational force pulling the book downwards. Pushing a table requires a horizontal force to overcome the friction between the table and the floor.