Table of Contents
- 1 How does the value of g vary as we go above the earth surface?
- 2 Is g vary from place to place?
- 3 How the value of G changes with the increase of depth find the value of g at the Centre of Earth?
- 4 What would be the value of g on the surface of the earth if its mass was twice as large?
- 5 How do you find the acceleration due to gravity on Earth?
How does the value of g vary as we go above the earth surface?
Its value is 9.8 m/s2 on Earth. That is to say, the acceleration of gravity on the surface of the earth at sea level is 9.8 m/s2….The Value of g Depends on Location.
| Location | Distance from Earth’s center (m) | Value of g (m/s2) |
|---|---|---|
| 3000 km above surface | 9.38 x 106 m | 4.53 |
How does the value of g vary with depth below earth’s surface?
Acceleration due to gravity decreases linearly with increase in depth. Acceleration due to gravity also decreases as we move above Earth’s surface. Thus, acceleration due to gravity is maximum at the Earth’s surface and is zero at the center of the Earth and at infinite distance above the Earth’s surface.
How does g at a point vary with the distance from the distance from the center of the earth illustrate graphically where is the highest value of g?
The value of ‘g’ is zero at the centre of the earth. Its value increases from centre to the surface of the earth and becomes maximum at the surface of the earth. On increasing the height, its value decreases.
Is g vary from place to place?
The value of g vary from place to place… it’s has different value at different place. The value of g decrease as we go farther away from the surface of earth. The value of g on the surface of earth is 9.8 ms^-2.
What are the differences between g and g?
Differentiate between gravitational constant (G) and acceleration gravity (g)?
| Gravitational constant (G) | Acceleration gravity (g) |
|---|---|
| The value of G = 6.673 × 10-11 Nm2/kg2 | The value of acceleration due to gravity of the earth is 9.8 m/s2 and moon is equal to 1.6 m/s2. |
| The unit of G is Nm2/kg2 | The unit of g is m/s2 |
How does G vary with the distance from Centre of the earth?
How the value of G changes with the increase of depth find the value of g at the Centre of Earth?
As the depth increases the mass of the earth decreses. At the surface of the earth this value will be maximum because R will be max. When R becomes less ( i.e when depth increases) this value also decreases. Hence, acceleration due to gravity decreases with increase in depth.
How does value of g change 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.
Why the value of g is different at different places?
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 would be the value of g on the surface of the earth if its mass was twice as large?
What would be the value of g on the surface of the earth if its mass was twice and its radius half of what it is now? g2=8g1 Thus , the value of g on the surface of the earth would be eight times the present value.
Why does the value of G vary across the earth’s surface?
There are slight variations in the value of g about earth’s surface. These variations result from the varying density of the geologic structures below each specific surface location. They also result from the fact that the earth is not truly spherical; the earth’s surface is further from its center at the equator than it is at the poles.
What is the variation of G with height and depth?
This means the value of g on top of a mountain won’t be exactly the same as that on the earth’s surface. Similarly, g at a location considerably below the earth’s surface won’t be equal to the value of g on the earth’s surface. This is known as the variation of g with height and depth.
How do you find the acceleration due to gravity on Earth?
Variation of g with height is expressed by the formula g1 = g (1 – 2h/R). Variation of g with depth is expressed by the formula g2 = g (1 – d/R). Here g1 is the acceleration due to gravity at a height of h with respect to the earth’s surface. And, g2 is the acceleration due to gravity at depth d with respect to the earth’s surface.
Does gravity change across the earth’s surface?
(Intermediate) You are right – gravity does change across the surface of the Earth and throughout its atmosphere, due to several effects. First, there is the variation of gravity with latitude that you alluded to: you weigh about 0.5\% more at the poles than on the equator.