Apart from the forces exerted by our hands, there exist other types of forces. These forces are the gravitational force, magnetic force, electrostatic force and friction. Things fall to the ground because of gravitational force. Magnets stick to refrigerator doors because of magnetic force. Electrostatic force is the cause of the attraction of plastic wrap to our hands after removing it from a package. Friction or frictional force slows down and stops moving objects.