physics

3. a coherent, typically large body of matter with no definite shape.
7. The force of gravity, or gravitational force, pulls objects with mass toward each other.
10. Newton's law of universal gravitation states that every particle attracts every other particle in the universe with a force that is proportional to the product
12. downward movement under the force of gravity only.
14. any natural force in the Universe that draws one mass towards another
15. an amount of space between two things or people

1. The gravitational constant is an empirical physical constant involved in the calculation of gravitational effects in Sir Isaac Newton's law of universal
2. pulls objects with mass toward each other
4. a force that acts on a body moving in a circular path and is directed toward the center around which the body is moving
5. the lowest velocity which a body must have in order to escape the gravitational attraction of a particular planet or other object.
6. the force that attracts a body toward the center of the earth, or toward any other physical body having mass.
8. point representing the mean position of the matter in a body or system
9. a law stating that the intensity of an effect such as illumination or gravitational force changes in inverse proportion to the square of the distance from the source.
11. a body's relative mass or the quantity of matter contained by it, giving rise to a downward force; the heaviness of a person or thing.
13. the curved path of a celestial object or spacecraft around a star, planet, or moon, especially a periodic elliptical revolution.