If all scientists aren't lying and gravity is real why doesn't the moon fall down onto earth and kill all life?
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answers:
Epic Guy say: Because the moon is moving quickly and actually "falling"
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Coel say: Gravity is what keeps it circling and how the moon pulls the tide of water, the sun is pulling the earth around it too.
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daniel g say: The moon "IS" falling,,always,,just that its stable orbital velocity, it misses the earth.
You may not see it, but the moon is traveling about 1 KM/sec.
Bring it to a dead stop, it falls to earth like dropping a rock.
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aladdinwa say: Because it's also moving sideways at the same rate that it is being pulled toward Earth. That sideways motion keeps it the same distance from Earth.
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Ronald 7 say: The Moon is in Orbit around Earth
Continuing to fall makes its path curve around Earth
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Starrysky say: The moon is attracted to Earth by being in a "gravity well" of bent space-time. But it is also moving sideways at 2300 mph. As a result, the falling path constantly misses Earth. Instead of a straight line, it becomes an ellipse. This is called an orbit.
If the orbital speed was suddenly canceled, then indeed, the moon would fall down upon the Earth and everyone would die.
Now, Smell, are you happy?
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Jeffrey K say: Gravity is real. The moon is falling. But it is also moving horizontally. Its inertia and earth's gravity combine to cause it to move in a circle. That is called an orbit. The moon could not stay in one place motionless.
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Valleycat1 say: Other forces also act on the moon to keep it on orbit, not to mention that the earth’s gravitational field is pretty weak that far put in space.
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AlCapone say: Pay attention in Science class at school and you'll learn that:
Actually the Moon IS being pulled down by gravity toward the Earth, but it's also circling the Earth at high speed. This means that as it falls it "misses" the Earth and continues in a circular orbit, continually "falling", balanced by the centrifugal force created by its speed. Its orbit is not a perfect circle.
BTW, why would scientists lie ??????
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coleman say: because once you get into space gravity doesn't exist anymore it only exists on earth
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John P say: By your reckoning - why does the Earth not crash into the Sun - killing all life in the process?
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Mike G say: .
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Gerald say: thiS Question doesnt not "make any much cents! hahha, your silly. i have an iq of 100: lol"
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knack say: there is no gravity the earth just sucks ... is that what you needed ?
OK look at this
your driving down the road and there is a fly "bug" out side your car you drive right by leaving it far behind
but you stop and a fly gets in your window and now you drive and the fly remain as if the car is not moving flying inside the car as if you sitting still
there are energy forces that balance
the pull of the earth gravity pulls the moon in ,, the rotation of the moon pulls out they balance
in reality the moon is slowly moving away from the earth , in minute amounts ,,,, this too will effect life in the long run on earth more than anything man does here
nothing is forever in the world of matter
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Tom S say: The Moon orbits the Earth, without gravity it would not orbit, but keep on going in a straight line, and of course would not exist in the first place.
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Decoy say: Please ask an astrophysicist for a more articulate answer than the ones on here, thank you.
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MysteryGuy say: Because there is a pull from the sun? Jupiter and literally every other planet in the solar system and beyond on the moon, which is the reason why it is where it is and not further or closer to the earth.
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Sydney say: because there is no gravity in space
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Alexander say: Its orbital velocity (centrifigal force) exactly balances the pull of gravity (both the earth's and the moon's). The same thing that keeps astronauts and satellites in orbit and that keeps the earth from falling into the sun.
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quantumclaustrophobe say: It *is* falling to Earth. All the time. But, fortunately - it has enough speed *sideways* that it keeps missing. That's basically what an orbit is. Just like the ISS - we gave it enough lateral speed that, as it falls, the ground keeps curving away from it - so... it's always falling, but always *missing* the Earth's surface.
Besides... tidal forces are actually making the moon move about 1 1/3 inches *away* from Earth every year...
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paige say: From this questions you’re also asking how rockets escape the earth. It’s called “escape speed” which is pretty much like over 11.1 km/s. anything between 8 and 11 km/s can fall into orbit. And then you have Newton’s law of motion: an object at rest or constant velocity must stay at rest or constant velocity unless acted upon by an outside force. The moon has an extremely high tangential velocity which stops it from being pulled to the center of the earth and keeps it in orbit around us.
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Nikki say: with the constant shift of the gravity in the earth, and gravity's weakening over hundreds-of-millions of years, i would be more likely to suspect the moon to go flying off into space someday.
maybe when the earth's magnetic poles flip, that will jar it loose?
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frank lynn say: You must have flunked your science class. Science (physics) describes why the moon orbits the Earth and why the mutual gravitational forces do not let it crash into the Earth, or vice versa. Some scientists lie. Some scientists cannot prove their theories but that does not make them liars. Gravity is real. It's why we do not float off into space. Without gravity, life would never be sustainable on the planet.
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Fred say: Some of your language is correct in that the Moon is falling toward Earth by Earth's gravitational pull on the moon.. It's just that the Moon's fall is balanced by the outward centrifugal force of the Moon's circular orbital path and is in a stable orbit around Earth. Just as artificial man made and delivered satellites.
Your statement of "gravity is real" and sentence ending with a question mark suggest that you don't have a full understanding of gravity or an understanding of centrifugal force?
You do understand that the Earth is in a circular path in an orbit around the Sun. The Moon is held in a circular path around the Earth? And the Moon's mass and gravity also have a gravitational pull upon the Earth displayed in the creation of the Earth's ocean tide cycles matching moon orbit? The Sun's gravitational pull also has a lesser effect upon Earth's ocean tides.
In your replies to comments you make the statement, "Gravity does not exist." But examples of gravity are abundant! An artificial satellite can be sent out of a stable Earth orbit by adding acceleration by booster rocket and speeding the artificial satellite into outer space by speeding up the satellite past Earth's 'escape velocity' where the centrifugal force exceeds Earth's gravitational pull. Or as in manned space missions the booster rockets can be turned toward rotational direction and slow the orbital speed of the space craft where the Earth's gravity exceeds outward orbital centrifugal force. As the spacecraft's orbit deteriorates it will be additionally slowed by entering Earth's atmosphere where air friction will rapidly slow and deteriorate the spacecraft's orbit.
One more example of gravitation is the visiting asteroid probes find asteroids are covered with gravitational captured debris.
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Al say: Throw a rock straight up into the air and let it fall on your head. After you wake up tie a string to the rock and start circling it around your head. The string is like gravity, trying to pull the rock toward your hand. The fact that the rock is spinning "fights" the pull of gravity and keeps the rock spinning.
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sparrow say: Apparently, the moon is continuously falling toward the Earth, but missing all the time !
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Elyse Rose say: You need more 2X4's in your attic.
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Bill-M say: The Speed the moon is going around Earth keeps it there.
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poldi2 say: The moon orbits the Earth, its outward momentum balances the force of Earth's gravity.
Its sad they don't teach basic science in schools anymore.
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Barry say: Who is to say that it won't one day?
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drake say: The moon has circular motion. There is an inward centripetal force and there is a perpendicular constant velocity in the plane of the circular motion. This is taught in physics 101. Not trying to be mean but just take the course. Really do the research and ask your teacher questions.
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CarolOklaNola say: Inertia and conservation of momentum and energy. The Moon is constantly falling toward the Earth while the Earth is constantly falling toward the Sun while the Sun is constantly falling toward Sagittarius A*.
The Moon is also moving AWAY from Earth an average of 3.8 centimeters equals 1.625 inches per year while Earth's rotation rate is slowing down.
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∅ say: because it's constantly in a state of trying to escape Earth's gravity. that is the definition of "orbit".
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