true or false
1 The value of acceleration due to gravity at a place is proportional to the mass of body
2 The gravitational potential energy at infinity is zero.
3 In going from equator to poles , the value of g increase.
4. The value of acceleration due to gravity g at the center of earth is zero.
5 The value of g is maximum at poles.
6. Displacement is a vector quantity.
7. . = . .
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Answer:
1. FALSE
2. TRUE
3. TRUE
4. TRUE
5. TRUE
6. TRUE
7. FALSE
Explanation:
1.The value of acceleration due to gravity does not depend upon the mass of the body.
Reason
Acceleration due to gravity is a constant quantity.
2.The gravitational potential energy at infinity is zero because Potential energy is directly proportional to the acceleration due to gravity.
3.The earth is not a perfect sphere. It is in an oval shape similar to the ellipse that’s 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. So, the earth is kind of an ellipse and the equator is further away from the center of mass of the earth than at the poles. So, as we go from the equator to poles, the value of g increases
4.That is, the Earth tries to pull everything towards its center. So, when the body is at the center there is no need to pull it towards the center anymore. So, acceleration due to gravity is zero at the center of the Earth.
5.Note: The acceleration due to gravity is maximum at poles because the poles are near to the centre of mass of the earth And the equator is somewhere far away from the centre of mass of the earth.
6.A vector quantity is defined as the physical quantity that has both directions as well as magnitude. Displacement is a vector quantity because it has both magnitude and direction.
7.as being smart please insert spelled keywords.
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Answer:
1) False
2) True, because gravitational influence is 0 at infinity height.
3) True, because the radius of earth decrease from equator to poles.
4) True, because at the centre radius of earth is 0.
5)True, same rule as in part 3.
6) True, as displacement have both magnitude and direction.
7) Please, mark my answer as brainliest.