Which transitions show the correct relationships? the force of nature the forces of nature are at work all around you. all things move and change because there are forces acting upon them. gravity is one of the primary forces. gravity pulls you down and keeps you in your seat. gravity keeps the earth and all the planets in an orbit around the sun. in the late 1600s, sir isaac newton developed the law of universal gravitation. the theory states that every particle with mass exerts a gravitational force on every other particle with mass. every object draws every other object toward it. objects with a larger mass will exert more force than objects with a smaller mass. to illustrate, think about an apple that falls from the tree. the earth’s gravity is what pulls the apple down to the ground. what we don’t see is the force of the apple pulling back on the earth. the apple exerts a much weaker force it has a much smaller mass.