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The value of acceleration due to gravity
- a)Is same on equator and poles
- b)Is least on poles
- c)Is least on equator
- d)Increases from pole to equator
Correct answer is option 'C'. Can you explain this answer?
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The value of acceleration due to gravitya)Is same on equator and poles...
Acceleration due to gravity:
Acceleration due to gravity is the acceleration experienced by an object in free fall near the surface of a celestial body, such as Earth. It is denoted by the symbol 'g' and is a measure of the strength of the gravitational field at a particular location.
Factors affecting acceleration due to gravity:
The value of acceleration due to gravity can vary depending on a few factors, including:
1. Distance from the center of the celestial body: The closer an object is to the center of the celestial body, the stronger the gravitational pull and hence, the greater the acceleration due to gravity.
2. Mass of the celestial body: The greater the mass of the celestial body, the stronger the gravitational pull and hence, the greater the acceleration due to gravity.
Acceleration due to gravity at the equator:
At the equator, the acceleration due to gravity is slightly less than at the poles. This can be attributed to two main factors:
1. Centrifugal force: Due to the rotation of the Earth, there is a centrifugal force acting outwards at the equator. This force counteracts the gravitational force to some extent and reduces the net acceleration due to gravity.
2. Earth's shape: The Earth is not a perfect sphere, but an oblate spheroid. It is slightly flattened at the poles and bulges at the equator. This bulging causes the mass to be distributed slightly farther away from the center at the equator compared to the poles. As a result, the gravitational pull at the equator is slightly weaker, leading to a lower acceleration due to gravity.
Acceleration due to gravity at the poles:
At the poles, the acceleration due to gravity is slightly greater than at the equator. This is because the poles are closer to the center of the Earth and experience a stronger gravitational pull compared to the equator.
Conclusion:
In summary, the acceleration due to gravity is least at the equator and increases gradually from the equator towards the poles. This is due to the combined effects of centrifugal force and the shape of the Earth.
Acceleration due to gravity is the acceleration experienced by an object in free fall near the surface of a celestial body, such as Earth. It is denoted by the symbol 'g' and is a measure of the strength of the gravitational field at a particular location.
Factors affecting acceleration due to gravity:
The value of acceleration due to gravity can vary depending on a few factors, including:
1. Distance from the center of the celestial body: The closer an object is to the center of the celestial body, the stronger the gravitational pull and hence, the greater the acceleration due to gravity.
2. Mass of the celestial body: The greater the mass of the celestial body, the stronger the gravitational pull and hence, the greater the acceleration due to gravity.
Acceleration due to gravity at the equator:
At the equator, the acceleration due to gravity is slightly less than at the poles. This can be attributed to two main factors:
1. Centrifugal force: Due to the rotation of the Earth, there is a centrifugal force acting outwards at the equator. This force counteracts the gravitational force to some extent and reduces the net acceleration due to gravity.
2. Earth's shape: The Earth is not a perfect sphere, but an oblate spheroid. It is slightly flattened at the poles and bulges at the equator. This bulging causes the mass to be distributed slightly farther away from the center at the equator compared to the poles. As a result, the gravitational pull at the equator is slightly weaker, leading to a lower acceleration due to gravity.
Acceleration due to gravity at the poles:
At the poles, the acceleration due to gravity is slightly greater than at the equator. This is because the poles are closer to the center of the Earth and experience a stronger gravitational pull compared to the equator.
Conclusion:
In summary, the acceleration due to gravity is least at the equator and increases gradually from the equator towards the poles. This is due to the combined effects of centrifugal force and the shape of the Earth.
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Community Answer
The value of acceleration due to gravitya)Is same on equator and poles...
Because the value of g is highest on poles
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