Final answer:
As distance from the Sun increases, orbital velocity decreases.
Step-by-step explanation:
The relationship between distance from the Sun and orbital velocity is that as distance increases, orbital velocity decreases. This can be explained by Kepler's second law of planetary motion, also known as the law of areas, which states that the planet speeds up as it gets closer to the Sun and slows down as it moves away. This behavior is consistent with the conservation of angular momentum and is reflected in the elliptical orbits of planets and other celestial bodies.