# Is gravity the same at all altitudes?

Table of Contents

## Is gravity the same at all 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.

## Does gravity change with depth?

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.

**Is Earth’s gravity stronger underground?**

For a perfectly uniform density spherical Earth, the gravity is strongest at the surface. But for a realistic Earth, the density is higher deeper underground, so the strongest gravity is somewhere underground.

**Is there less gravity underground?**

Gravity is what holds our world together. However, gravity isn’t the same everywhere on Earth. Gravity is slightly stronger over places with more mass underground than over places with less mass.

### How do you find gravity at different altitudes?

a=G*M/r^2, where G is the gravitational constant, r is the distances to the center of the Earth, and M is the mass of the Earth….

- galt is the acceleration due to gravity at a specific altitude.
- re is the Mean Radius of the Earth (re): 6371.009 km.
- g is Acceleration Due to Gravity at Sea Level (g): 9.80665 m/s²

### Is gravity the same for all objects?

Gravity acts on all masses equally, even though the effects on both masses may be different because gravity causes all objects to fall at the same constant rate of 9.8 m/s2. The mass of an object ALWAYS stays the same. Your mass on Earth will be the same if you were on the moon.

**Does gravity work underground?**

In short, gravity certainly exists underground, but it decreases as you go deeper. In an idealized case, gravity would decrease linearly with depth, however, a more realistic description of gravity underground is given by the PREM model, according to which gravity is at its strongest at the boundary of the outer core.

**How does gravity varies with height and depth?**

For an object placed at a height h, the acceleration due to gravity is less as compared to that placed on the surface. As depth increases, the value of acceleration due to gravity (g) falls. The value of g is more at poles and less at the equator.

## Does gravity change with altitude?

You are right – gravity does change across the surface of the Earth and throughout its atmosphere, due to several effects. Second, gravity does indeed change with altitude. The gravitational force above the Earth’s surface is proportional to 1/R2, where R is your distance from the center of the Earth.

## Is gravity higher at the core?

As you see, the gravity actually increases slightly within the Earth (reaching a maximum at the core-mantle boundary), but tapers down within the core.

**At what altitude does gravity stop?**

Near the surface of the Earth (sea level), gravity decreases with height such that linear extrapolation would give zero gravity at a height of one half of the Earth’s radius – (9.8 m·s−2 per 3,200 km.)

**How does gravitational acceleration vary with different heights?**

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.