SOLAR SYSTEM

UNIVERSE

THE SUN

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
The sun’s ____ is so powerful that it holds the planets in orbit.
A
inertia
B
gravity
C
energy
D
light
Explanation: 

Detailed explanation-1: -The Sun’s gravity pulls the planets in orbit around it, and some planets pull moons in orbit around them. Even spacecraft are in motion through the solar system, either in orbit around the Earth or Moon, or traveling to further worlds, because of gravitational forces.

Detailed explanation-2: -The Sun’s gravitational force is like the tetherball rope, in that it constantly pulls Earth toward it. Earth, however, like the tetherball, is traveling forward at a high rate of speed, which balances the gravitational effect. This means that the planet neither flies out into space nor falls into the Sun.

Detailed explanation-3: -E.g. the planets and comets experience an attractive force towards the Sun. Moons and artificial satellites are attracted to their planets, and so are pulled towards them. This gravitational force keeps them moving in curved paths called orbits.

Detailed explanation-4: -The Sun is a huge ball of hydrogen and helium held together by its own gravity.

There is 1 question to complete.