Newton's Law of Universal Gravitation

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What is Newton's Law of Universal Gravitation?

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It states that every point mass attracts every other point mass in the universe with a force that is directly proportional to the product of their masses and inversely proportional to the square of the distance between their centers.

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What two factors affect the magnitude of the force of gravity between two objects?

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Mass and distance.

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When will the gravity between two objects be the least?

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When the masses of both objects are small and the objects are far apart.

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What determines the weight of an object on a planet?

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The mass of the object and the gravitational pull of the planet.

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Why do you weigh more on Jupiter than on Earth?

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Because Jupiter has more mass, and therefore more gravity.

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Why do you weigh less on the Moon than on Earth?

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Because the Moon has less mass and therefore less gravity.

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What is the relationship between mass and gravitational force?

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Gravitational force increases with an increase in mass.

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What is the relationship between distance and gravitational force?

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Gravitational force decreases as the distance between two objects increases.

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What is weight?

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Weight is the force exerted by gravity on an object, calculated as mass times the acceleration due to gravity.

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How does gravity affect objects in space?

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Gravity keeps planets in orbit around stars and moons in orbit around planets.

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