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प्रश्न
Is the acceleration due to gravity of earth ‘g’ a constant ? Discuss.
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उत्तर
No, the value of acceleration due to gravity (g) is not constant at all the places on the surface of the earth. Since the radius of the earth is minimum at the poles and maximum at the equator, the value of g is maximum at the poles and minimum at the equator. As we go up from the surface of the earth, the distance from the centre of the earth increases and hence the value of g decreases. The value of g also decreases as we go down inside the earth.
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संबंधित प्रश्न
The radius of planet A is half the radius of planet B. If the mass of A is MA, what must be the mass of B so that the value of g on B is half that of its value on A?
The value of gravitational acceleration (g) is ______ at the equator.
Right or wrong sentence:
As we go above the earth's surface, value of g increases.
Write scientific reasons.
The value of g at the centre of the earth is zero.
______ is used to change the speed of the car.
On the earth, a stone is thrown from a height in a direction parallel to the earth’s surface while another stone is simultaneously dropped from the same height. Which stone would reach the ground first and why?
Write if the following statement is correct or wrong.
The value of g is the same everywhere on the surface of the earth.
The value of gravitational acceleration g at a height h above the earth's surface is `"g"/4`, then ______. (R = radius of earth)
If the change in the value of g at the height h above the surface of the earth is the same as at a depth x below it, then ______.
(both x and h being much smaller than the radius of the earth)
Where on Earth is the value of acceleration due to gravity the highest?
