why the gravity of moon is less then the gravity of earth?

Answer 1

gravity of any planet depends upon its mass... the mass of moon is also less than earth, and the gravity of moon is also less than earth. its 1/6 of earth's gravity and the weight of any person is also 1/6 times of its weight on earth.

Answer 2

particular! Your weight on the moon is a function of the moon's gravity. First, each and every physique comprehend that gravity is a tension that attracts all certainly products contained in the direction of 1 yet yet another (yet why this happens is largely unknown!). 2d, the extra advantageous proper the mass of an merchandise, the extra advantageous proper the strain of gravity. The moon is a million/4 the size of Earth, so the moon's gravity is under the earth's gravity, 80 3.3% (or 5/6) much less to be good. finally, "weight" is a point of the gravitational pull between 2 products. So of direction you will in all probability weigh much less on the moon. think of of ways a recommendations you will in all probability prefer to bounce on the moon! The Apollo astronauts curiously had a great time :-)

Answer 3

You are using the word gravity to mean gravitational force. The gravitational force of an object is its weight. The gravitational force on an object of mass M1 on the moon is

F = M1 X A

Where A is the acceleration of gravity on the moon at that point.

A = K x M / (R x R)

K is a gravitational constant.

M is the mass of the moon which is .0123 earths

R is the radius of the moon which is .273 earths

So the gravitational force on an object on the moon is

.0123/(.273 x.273) that on earth which is .165 or about 1/6th that on earth.

So it is a combination of the fact that the mass of the moon is less and the distance from the center of the moon to its surface is less, not just that the mass less.

If the earth and the moon have the same density or are made of the same material, the gravitational force goes up as the radius goes up. Since the radius of the earth is about 4 times as great, and the gravitational force is 6 times as great, we know that the density of the earth is higher than the density of the moon. That means that the earth is made of denser or heavier materials.

Answer 4

Because the moon is made up of cheese and, as everyone knows, cheese floats on water. This means that the massive oceans of the earth, whose moisture rises into the atmosphere, serve to repel the cheese of the moon thereby presenting the illusion that the moon has less gravity than the earth. In reality, the moon is a very condensed type of cheese that, while still able to float on water, actually has many times the gravitational pull of the earth. It is this massive gravitational pull of our own moon that keeps the sun from flying away into space at random.

Answer 5

Dahh this is simply that the earth is bigger than the moon and the moon rotates around the earth
Also as we can see from the earth the moon has no atmosphere which could only mean the moon gravity is not enough to hold a even water.

Answer 6

The gravitational field of the Moon has been determined by the tracking of radio signals emitted by orbiting spacecraft. The principle used depends on the doppler effect, whereby the line-of-sight spacecraft acceleration can be measured by small shifts in frequency of the radio signal, and the measurement of the distance from the spacecraft to a station on Earth. Since the gravitational field of the Moon affects the orbit of a spacecraft, it is possible to use these tracking data to invert for gravitational anomalies. However, because of the Moon's synchronous rotation it is not possible to track spacecraft much over the limbs of the Moon, and the farside gravity field is thus only poorly characterized.

The major characteristic of the Moon's gravitational field is the presence of mascons, which are large positive gravitational anomalies associated with some of the giant impact basins. These anomalies greatly influence the orbit of spacecraft about the Moon, and an accurate gravitational model is necessary in the planning of both manned and unmanned missions. They were initially discoved by the analysis of Lunar Orbiter tracking data, since pre-Apollo navigational tests were experiencing landing position errors much larger than mission specifications.

The origin of mascons are in part due to the presence of dense mare basaltic lava flows that fill some of the impact basins. However, lava flows by themselves can not explain the entirety of the gravitional signature, and uplift of the crust-mantle interface is required as well. Based on Lunar Prospector gravitational models, it has been suggested that some mascons exist that do not show evidence for mare basaltic volcanism. It should be noted that the huge expanse of mare basaltic volcanism associated with Oceanus Procellarum does not possess a positive gravitational anomaly.

Answer 7

The moon has less mass, hence less gravitiational pull.

Answer 8

Just because it is smaller doesnt mean that it has less gravity. It is indeed mass, but the density is around the same so because it is smaller therefore it has less mass.

Answer 9

Because the Moon is less massive. It's smaller.

Answer 10

because the mass of moon is one sixth of our earth and hence the gravity also is one sixth of our earth.