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Orbital motion of artificial satellites

Lesson 5 / 7

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I can describe changes to a satellite’s speed and velocity as it orbits Earth.

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Artificial satellites orbit Earth because of the gravitational attraction between them. The speed of a satellite along its orbit around Earth is constant. The velocity of a satellite along its orbit around Earth constantly changes as it changes direction. The gravitational force on a satellite makes it accelerate and change direction, but not speed.

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