Is the value of acceleration due to gravity g the same at the different places on Earth why?
Is the value of acceleration due to gravity g the same at the different places on Earth why?
The variation in apparent gravitational acceleration (g) at different locations on Earth is caused by two things (as you implied). The distance between the centers of mass of two objects affects the gravitational force between them, so the force of gravity on an object is smaller at the equator compared to the poles.
What is the value of g at different places?
The Value of g Depends on Location
| Location | Distance from Earth’s center (m) | Value of g (m/s2) |
|---|---|---|
| 1000 km above surface | 7.38 x 106 m | 7.33 |
| 2000 km above surface | 8.38 x 106 m | 5.68 |
| 3000 km above surface | 9.38 x 106 m | 4.53 |
| 4000 km above surface | 1.04 x 107 m | 3.70 |
How does the acceleration due to gravity vary from place to place?
As the earth is an oblate spheroid, its radius near the equator is more than its radius near poles. Since for a source mass, the acceleration due to gravity is inversely proportional to the square of the radius of the earth, it varies with latitude due to the shape of the earth.
Does the value of g changes from place to place?
The value of G does not change from place to place. It is a universal constant. The gravitational constant is the constant of proportionality in Universal Gravitation law given by Issac Newton and is commonly denoted by ‘G’. This is different from ‘g’, which denotes the acceleration due to gravity.
Is gravity different at different altitudes?
Gravity is often assumed to be the same everywhere on Earth, but it varies because the planet is not perfectly spherical or uniformly dense. It’s also weaker at higher altitudes, further from Earth’s centre, such as at the summit of Mount Everest.
Why is the value g not the same at all places on the earth?
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.
How much can g vary at a location in the mountains compared to a location at sea level?
Gravity on the Earth’s surface varies by around 0.7%, from 9.7639 m/s2 on the Nevado Huascarán mountain in Peru to 9.8337 m/s2 at the surface of the Arctic Ocean.
What is acceleration due to gravity explain formula of relation between g and g find the value of g?
The acceleration due to gravity is the acceleration experienced by an object during free fall when in vacuum due to the gravitational force of the Earth. The standard value of g is 9.8 m/s² on the surface of the earth. We know that gravitational force F = GMm/ (r+h)²
Why is the value g not the same at all places on the earth Class 9?
Answer: No, the value of g is different at different places on the surface of earth. Due to which the radius of the earth is smaller at poles and is larger at equator. therefore the acceleration due to gravity is smaller at equator than that at poles.
How does the value of acceleration due to gravity g change with altitude?
The acceleration of an object changes with altitude. This means that gravitational acceleration is inversely proportional to the square of the distance from the centre of Earth. As the distance is doubled, the gravitational acceleration decreases by a factor of 4.
What is the value of acceleration due to gravity at the Centre of earth?
zero
So, acceleration due to gravity is zero at the center of the Earth. Consider a test mass (m) taken to a distance (d) below the earth’s surface, the acceleration due to gravity that point (gd) is obtained by taking the value of g in terms of density. Hence g=0 at the center of the earth.
What is value of g at the Centre of Earth?
0
g=0 at the centre of Earth.
How do you calculate acceleration due to gravity?
These two laws lead to the most useful form of the formula for calculating acceleration due to gravity: g = G*M/R^2, where g is the acceleration due to gravity, G is the universal gravitational constant, M is mass, and R is distance.
How does acceleration affect gravity?
To make things simple gravity is nothing but a force and by newton’s second law of motion force is the product of mass and acceleration so gravity becomes directly proportional to acceleration. Only in accelerated motion gravity comes into the picture and non-accelerated motion does not affect gravity as far as I know .
How is acceleration due to gravity calculated?
The acceleration due to gravity is the acceleration that an object experiences because of gravity when it falls freely close to the surface of a massive body, such as a planet. Also known as the acceleration of free fall, its value can be calculated from the formula. g = GM / (R + h) 2.
What is acceleration caused by gravity?
Gravitational acceleration is defined the acceleration on a body caused by force of gravity. According to Newton ‘s Universal law of gravity, the gravitational force between two bodies is directly proportional to the product of magnitude of the masses and inversely proportional to the square of the distance between them.
