Presentation on theme: "Newton’s Law of Universal Gravitation"— Presentation transcript:
1 Newton’s Law of Universal Gravitation PhysicsMrs. Coyle
2 Isaac Newton1666, England (45 years after Kepler).
3 QuestionsIf the planets are orbiting the sun , what force is keeping them in orbit?What force keeps the moon in its orbit?Could the force of gravity be universal?
4 Newton’s Law of Universal Gravitation Any two objects attract each other with a gravitational force, proportional to the product of their masses and inversely proportional to the square of the distance between them.The force acts in the direction of the line connecting the centers of the masses.