The three correct statements about Newton's theory of universal gravitation are:
- Gravitational force increases as the mass of objects increases.
- Gravitational force increases as the distance between objects decreases.
- The theory applies to all objects in the universe.
The other statements are incorrect:
- Gravitational force does not increase as the mass of objects decreases.
- Gravitational force does not increase as the distance between objects increases.
- The theory does not apply only to objects on Earth; it applies to all masses in the universe.