GENERAL KNOWLEDGE

GK

SOLAR SYSTEM

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
The length of a year on a planet is best explained by
A
The planet rotating on its axis
B
The Sun rotating on its axis
C
The revolution around the Sun
D
The seasons
Explanation: 

Detailed explanation-1: -Planets that orbit closer to the Sun than Earth have shorter years than Earth. Planets that orbit farther from the Sun than Earth have longer years than Earth. This happens for two main reasons. If a planet is close to the Sun, the distance it orbits around the Sun is fairly short.

Detailed explanation-2: -A planet farther from the Sun not only has a longer path than a closer planet, but it also travels slower, since the Sun’s gravitational pull on it is weaker. Therefore, the larger a planet’s orbit, the longer the planet takes to complete it.

Detailed explanation-3: -The further away from the Sun it is, the slower the planet’s orbital speed and the longer its path. Both of those factors result in taking longer to make one complete orbit and a planet having a longer year.

There is 1 question to complete.