P5a - Satellites, Gravity and Circular Motion

1. An example of this is that the Moon orbits the Earth as a _______ satellite. (7)
5. This force is what keeps a satellite in orbit. (13)
7. Geostationary satellites are in much higher orbits (36000km), therefore the gravitational force on them is ______. They move slowly and have further to travel. (6)
8. A comet orbits the sun in an __________ loop, whereas the planets have almost circular orbits. (10)
9. One use of a low polar orbit is _______ the Earth's surface. (7)

2. The use of geostationary satellites can be used for Global Positioning Systems (GPS), weather forecasting, satellite phone calls and satellite __________. (10)
3. The force that acts towards the centre of a circle that keeps an object moving in a circle, provided by gravity. (11)
4. Low polar orbiting satellites can be used to forecast this. (7)
6. Satellites in low polar orbit travel round the Earth very _______ and go round the Earth several times each day. (7)
10. An object that orbits a larger object in space. (9)

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