Physics 3 - Turning Forces - Satellites

Revision Cards for Satellites, hope this helps :]

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GPS (Global Positioning Satellites) send out signals that are used by a receiver to pinpoint its position. A GPS receiver fitted into a car tells a driver exactly where the car is and which direction it's going in.

- If a Satellite's speed is too low, it will fall to the ground

- If its initial speed is too great, it will fly off into space

- At the correct speed, it orbits the Earth

The 'period' of a satellite is the time it takes to make one orbit.

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