Here's how it works:
* The farther a planet is from the sun, the slower it orbits. This is because the sun's gravitational pull weakens with distance. Imagine a planet orbiting close to the sun like a small ball on a string swinging around quickly. Now imagine the string getting longer; the ball would move slower.
* The closer a planet is to the sun, the faster it orbits. This is because the sun's gravitational pull is stronger closer in, causing the planet to move faster to counteract the pull and maintain its orbit.
Kepler's Third Law mathematically describes this relationship:
* The square of a planet's orbital period (the time it takes to complete one orbit) is proportional to the cube of its average distance from the sun.
In simpler terms:
* If you double a planet's average distance from the sun, its orbital period (the time it takes to go around the sun) will increase by a factor of about 2.8 (the cube root of 8).
This relationship ensures that the planets maintain stable orbits around the sun, with the balance between gravitational pull and orbital velocity.
