GENERAL KNOWLEDGE

GK

THE UNIVERSE

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
An example of a gravitational interaction is that the Earth ____
A
orbits the Sun.
B
orbits the moon.
C
Either A or B
D
None of the above
Explanation: 

Detailed explanation-1: -As the Sun is very large, it exerts a great gravitational force on Earth. 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.

Detailed explanation-2: -Gravitational force is a non-contact force.

Detailed explanation-3: -Gravity is one major force that creates tides. In 1687, Sir Isaac Newton explained that ocean tides result from the gravitational attraction of the sun and moon on the oceans of the earth (Sumich, J.L., 1996).

There is 1 question to complete.