they are farther away
The outer planets take longer to orbit the Sun, because they are farther away from the Sun. It make its gravitational pull weaker to the farther planets. That means that the outer planets take longer to orbit the Sun.
The outer planets take longer.
The outer planets take longer to orbit the Sun, because they are farther away from the Sun. It make its gravitational pull weaker to the farther planets. That means that the outer planets take longer to orbit the Sun.
Because gravity is stronger as it gets closer to the planet it is orbiting. and orbits are caused by the gravity of the planit they are rotating.
The outer planets take much more time and also travel longer to complete a whole orbit around the Sun, than the inner ones.
Scientists don't know that yet, but there's no rule that says smaller mass must have shorter orbit. Look at the planets: the biggest is Jupiter and the outer planets have longer orbits.
neptune
Some planets take longer to orbit the sun because they are farther away giving them a longer path to travel.
They have a greater distance to travel
The four outer planets; Jupiter, Saturn, Uranus and Neptune are all much larger than the inner planets. These outer planets have no real surface, they are composed mainly of Hydrogen and helium gas, which gets thicker and thicker until the extreme pressures closer to the core of the planets change the state of the gases. The outer planets are much colder than the inner planets due to their distance from the sun, they take much longer to orbit the sun due to this distance. The outer planets are a lot larger than the inner planets.
A general rule of thumb for planetary science is the further the planet is from it's star, the longer it's orbital period.
Inner planets differ from outer planets because they have rocky core (excepting Pluto), and the are much smaller than outer planets, which are bigger and take more time to orbit Sun than inner planets because of their location. Outer planets are farther from the Sun than inner planets.