GENERAL KNOWLEDGE

GK

SOLAR SYSTEM

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
The existence of the force of gravity explains why the Moon
A
has no atmosphere.
B
orbits around Earth.
C
appears brighter on different nights.
D
appears to change in size each month.
Explanation: 

Detailed explanation-1: -The Earth’s and Moon’s gravitational pulls are a pair of Newton’s Third Laws. The Earth has a gravitational force on the Moon, and the Moon has a gravitational pull on the Earth that is equal and opposing. The Moon is kept in orbit around us by the gravity of the Earth.

Detailed explanation-2: -Newton’s Law of Universal Gravitation.

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