Physics · Class 9

Gravitation

Gravitation is the universal force of attraction between all objects with mass. It keeps planets in orbit around the sun and keeps us anchored to Eart

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Why does the moon orbit Earth instead of falling to it?

The moon is constantly falling toward Earth due to gravity, but it also has forward velocity. The combination of falling and forward motion causes it to follow a circular path around Earth.

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Why is gravity weaker at higher altitudes?

At higher altitudes, you are farther from Earth's center. Since gravitational force is inversely proportional to the square of distance, the force decreases as you go higher.

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If gravity is a weak force, why is it so important?

Although gravity is weak between small objects, it becomes very strong for massive objects like planets and stars. Over cosmic distances and time scales, gravity shapes the universe.

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