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   How does gravity work according to Newton's theory?

   • According to Newton's theory, the exact expression of gravity came down to mass and distance. The farther apart two particles are and the less massive they are, the less the gravitational force. Newton's law provided a great understanding of how gravity works but we still don't know why it works.

   What is gravity? | HowStuffWorks

   science.howstuffworks.com/environmental/earth/geophysics/what-is-gravity.htm

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   Why is gravity attracted to all objects?

   • Gravity causes attraction between all objects. Every mass attracts every other mass. That means you are gravitationally attracted to your friend, your pet, and even your pizza. is the distance between the centers of mass. We measure the distance between the objects from their centers, not their surfaces. Want to join the conversation?

   Newton’s law of universal gravitation (article) | Khan Academy

   www.khanacademy.org/science/hs-physics/x215e29cb31244fa1:types-of-interactions/x215e29cb31244fa1:newton-s-law-of-universal-gravitation/a/newtons-law-of-universal-gravitation

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   Why is gravity so important?

   • Gravity is like invisible elastic stretched through the whole universe, holding the stars and planets together and pulling them toward one another. Much more significantly, it's a fundamental force between every bit of matter in the universe and every other bit: just like Earth and the Sun, you have your own gravity, and so do I.

   Gravity: A simple introduction - Explain that Stuff

   www.explainthatstuff.com/gravity.html

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   Why does gravity hold your feet down to the ground?

   • The most familiar is gravity and it holds your feet down to the ground because the mass of the planet exerts a fundamental force on the mass of your body. In fact, gravity stirs up an attraction between any two objects in the universe: moons, dust motes, coyotes -- you name it. Wherever you find matter, you'll find gravity.

   What is gravity? | HowStuffWorks

   science.howstuffworks.com/environmental/earth/geophysics/what-is-gravity.htm

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2. science.howstuffworks.com › environmental › earthHow does gravity work? | HowStuffWorks

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   Sep 5, 2023 · Gravity is the force that causes two particles to pull towards each other. Learn about gravity and find out how Newton and Einstein explain gravity.

3. www.explainthatstuff.com › gravityGravity: A simple introduction - Explain that Stuff

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   Jan 6, 2022 · Gravity in space; How does gravity work? The law of universal gravitation; Einstein meets gravity; How does gravity travel? A brief history of gravity; Find out more

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5. www.space.com › classical-gravityWhat is gravity? | Space

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   Jul 30, 2023 · To summarize, according to Einstein, gravity is the curving of spacetime by all the objects in it, combined with the "geodesic" (straight) motions of those objects through the spacetime.

6. www.khanacademy.org › science › hs-physicsNewton’s law of universal gravitation (article) | Khan Academy

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   Newton’s law of universal gravitation describes objects falling down as well as objects in a circular orbit, such as a satellite orbiting Earth. How to find gravitational field strength. All objects attract other objects by producing a gravitational field g , which is defined as gravitational force per unit mass.

   • Remember that 10² is 100. 10³ is 1,000. So 10^10 is a one followed by ten zeros, or ten billion. 10^-10 is going backwards: a decimal point followe...
   • N stands for Newtons, which is a unit of force. Could you clarify what you mean about inputting the numbers in the formula?
   • It does, but it is mostly not obvious. Everything has a gravitational pull, but it is not noticeable except for some exceptions; your dog, for inst...
   • Little g is the numerical value of Earth's gravitational field's pull at the Earth's surface. Another planet would have a different value for its o...
   • me neither
   • Yes. By definition, G is a constant.

7. www.khanacademy.org › science › in-in-class11thIntroduction to Newton's law of gravitation - Khan Academy

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   Gravity is a force of mutual attraction between two objects that both have mass or energy. Newton's universal law of gravitation can be used to approximate the strength of gravitation forces between two objects as a function of the objects' masses and the distance between them.

8. www.newscientist.com › definition › gravityWhat is gravity? | New Scientist

   www.newscientist.com › definition › gravity

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   Gravity is just geometry, the result of the curvature by massive objects of the space and time around them. The strength of the gravitational “ field ” at any point in space or...