Gravity from Earth keeps the Moon and human-made satellites in orbit. Gravity from the Sun reaches throughout the solar system and beyond, keeping the planets in their orbits. Gravity from Earth keeps the Moon and human-made satellites in orbit.
That powerful force is gravity. Newton’s Law of Gravitation states, F = G (m 1 m 2)/r, where F is the force, G is the gravitational constant (6.6730 x 10 m /kg-s), m 1 and m 2 are the masses of two interacting objects (in this instance, the Earth and Moon), and r is the distance between them. slide 2 of 5. That's the mutual force of gravitation (gravity) between the Earth and the Moon. This, combined with the Moon's velocity (its inertia), results in the orbital path that the Moon follows. The force of Gravity is  determined by the mass and distance between two or more objects.  The other force that keeps the moon in o … rbit is the moon's inertia.  Without inertia the moon would simply fall into Earth; because of  Gravity, the same would happen with the planets and the sun. Answered. Gravity attracts the Moon and Earth to each other, providing centripetal acceleration. The Moon is continually falling toward Earth, bu … t centrifugal force, caused by the Moon's inertia, keeps the Moon from leaving its orbit. Split and merge into it. Answer by Davidmoreno. Confidence votes 14. The Earth and Moon keep in orbit due to a balance between gravity (from the Sun or the Earth) and inertia (due to the Earth's velocity around the Sun or the Moon's velocity around the Earth). Therefore, the Earth does not smash into the Sun, nor does it fly out to outer space Gravity from the Sun reaches throughout the solar system and beyond, keeping the planets in their orbits. Gravity from Earth keeps the Moon and human-made satellites in orbit. It is possible to far away from a planet or star and feel less gravity, because gravity decreases with distance. But that doesn't account for the weightless feeling that astronauts experience in space.  The Moon orbits Earth in the prograde direction and completes one revolution in approximately 27.322 days (a sidereal month). Earth and the Moon orbit about their barycentre (common center of mass), which lies about 4600 km from Earth's center (about three quarters of the radius of Earth). On average, the Moon is at a distance of about 385000 km from Earth's center, which corresponds to about 60 Earth radii. With a mean orbital velocity of 1.023 km/s, the Moon moves relative to the stars each hour by an amount roughly equal to its angular diameter, or by about 0.5°. The Moon differs from most satellites of other planets in that its orbit is close to the plane of the ecliptic, and not to Earth's equatorial plane. The plane of the lunar orbit is inclined to the ecliptic by about 5.1°, whereas the Moon's spin axis is inclined by only 1.5° All masses attract each other no matter how big or small. Gravity is a force that governs motion throughout the universe. It holds us to the ground, keeps the Moon in orbit around the Earth, and the Earth in orbit around the Sun. Source(s): Elizabeth H · 7 years ago. The Earth and Moon keep in orbit due to a balance between gravity (from the Sun or the Earth) and inertia (due to the Earth's velocity around the Sun or the Moon's velocity ar … ound the Earth). Therefore, the Earth does not smash into the Sun, nor does it fly out to outer space. 10 people found this useful. The force of Gravity is  determined by the mass and distance between two or more objects.  The other force that keeps the moon in o … rbit is the moon's inertia.  Without inertia the moon would simply fall into Earth; because of  Gravity, the same would happen with the planets and the sun. Answered. 4.1 Introduction. The Moon revolves around Earth in an elliptical orbit with a mean eccentricity of 0.0549. Thus, the Moon's center-to-center distance from Earth varies with mean values of 363,396 km at perigee to 405,504 km at apogee. 
http://www.brighthub.com/science/space/articles/63825.aspx http://www.answers.com/Q/What_keeps_the_moon_in_orbit_around_earth http://www.answers.com/Q/What_keeps_earth_and_moon_in_orbit http://howthingsfly.si.edu/flight-dynamics/gravity-orbit https://en.wikipedia.org/wiki/Orbit_of_the_Moon https://answers.yahoo.com/question/index?qid=20081021033709AAtQK1B http://www.answers.com/Q/What_keeps_the_moon_in_orbit_around_earth http://eclipse.gsfc.nasa.gov/SEhelp/moonorbit.html
what keeps the moon orbiting the earth