Gravity

Try to jump as high as you can. No matter how high you jump, you will surely land on the ground. The force that acts on falling objects is called gravity. Gravity is a noncontact force, which means that the object acted upon is at a distance. The gravitational force that acts on an object pulls the object down. Gravity is also the force that allows you to stand firmly on the ground, for without gravity, all of us will be floating in the air, just like astronauts and cosmonauts in space.

Gravity is exerted into all states of matter. It holds the Earth’s atmosphere in place. It causes water to drop from a high place to a low place, as in a waterfall. It pulls rocks and buildings and causes them to stand still.