Question

The value of g remains the same at all the places on the earth's surface. Is this statement true?

Answer 1

The average value of the g is $9.8m{{s}^{^{-2}}}$. The value of ‘g’ is minimum at the equator on the surface of the earth maximum at the poles. Earth is not a perfect sphere So, the value of ‘g’ varies from place to place.

Complete step-by-step solution
The above statement is not true. ‘g’ is referred to as acceleration due to gravity. The earth is a little oval shape just like an ellipse that is the reason behind why the gravity is not the same in each and every part of the earth. it is maximum at the place which is nearer to the center of the earth, so the value of ‘g’ is minimum at the equator on the surface of the earth maximum at the poles. Comparatively the distance at the poles is smaller than that of the equator hence we can say the pole has maximum gravity than the equator.
In other words, the value of ‘g’ increases as we move from equator to pole. In the SI unit, the acceleration of gravity is measured as in $m{{s}^{^{-2}}}$ and the average value of the g is $9.8m{{s}^{^{-2}}}$.
Hence the value of g remains the same at all the places on the earth's surface, this statement is not true.
Additional information:
Newton's second law of motion is F=ma where we get the gravitational acceleration that contributes to the total gravity and rotational of the earth.

Note: We have to remember gravity is a kind of force which attracts a body towards the center of the earth or any physical body having mass so, gravity and weight are not the same things.