Yes.
It has no iron core.
no it is about 1/6 the density of the earth
Yes, the Earth's moon is less dense than Mercury. Mercury is one of the densest planets in the solar system, with a density about 5.4 times that of water, whereas the Moon has a density about 3.3 times that of water.
Less
Astronauts weigh less on the Moon than on Earth because the Moon has less mass and gravity than Earth. The gravitational force on the Moon is about 1/6th that of Earth, so objects (including astronauts) weigh less on the Moon due to this weaker gravity.
The moon has weaker gravity than Earth does.
because the moon has less mass then earth
There is gravity on the moon. It is about on sixth what it is on Earth. This is because the moon has less mass than Earth does.
The gravity is less on the Moon, because the Moon is smaller than earth; it has less mass, and therefore "sucks" less than the earth. Weight is gravity times mass, you have the same mass on Earth and on the Moon (and in space), but weigh less on the moon.
The gravitational force on the Moon is less than that on Earth because the Moon has less mass than Earth. Gravity is directly proportional to mass, so the smaller mass of the Moon results in a weaker gravitational force.
Since the Moon's gravity is 1/6 that of Earth, the Moon's gravity is 5/6 less than that of Earth.
No
It doesn't. The moon has less gravity than Earth because it has less mass.