Yes, the distance of a planet from the sun absolutely affects its period of revolution. This relationship is described by Kepler's Third Law of Planetary Motion, which states:

The square of a planet's orbital period is proportional to the cube of the semi-major axis of its orbit.

Here's a breakdown:

* Orbital Period: The time it takes a planet to complete one full orbit around the sun.

* Semi-major Axis: Half of the longest diameter of the planet's elliptical orbit. Essentially, it's a measure of the average distance between the planet and the sun.

In simpler terms:

* Planets farther from the sun have longer orbital periods because they have more distance to cover.

* Planets closer to the sun have shorter orbital periods because they cover less distance.

Example:

* Earth is about 93 million miles from the sun and takes 365 days to complete one orbit.

* Mars is about 142 million miles from the sun and takes 687 days to complete one orbit.

Why does this happen?

* Gravity: The sun's gravity is the force that holds planets in their orbits. The strength of gravity decreases with distance. Planets farther away experience weaker gravitational pull, causing them to move slower and take longer to complete an orbit.

This relationship is a fundamental law of celestial mechanics and helps us understand the motion of planets in our solar system and beyond.