An example of this is that the Moon orbits the Earth as a _______ satellite.
Natural
2 of 15
Satellites which have been put into space by humans.
Artificial
3 of 15
This force is what keeps a satellite in orbit.
Gravitational
4 of 15
A universal force of attraction between masses.
Gravity
5 of 15
The force that acts towards the centre of a circle that keeps an object moving in a circle, provided by gravity.
Centripetal
6 of 15
The period of time taken for a satellite to make one complete orbit. The higher the position above the Earth, the longer it takes to make a complete orbit.
Orbital
7 of 15
Satellites in low polar orbit travel round the Earth very _______ and go round the Earth several times each day.
Quickly
8 of 15
One use of a low polar orbit is _______ the Earth's surface.
Imaging
9 of 15
Low polar orbiting satellites can be used to forecast this.
Weather
10 of 15
One use for low polar orbiting satellites is for military use for ______.
Spying
11 of 15
These satellites orbit much higher above the Earth and take 24 hours to complete one orbit. They remain above a fixed position (above the equator) on the Earth all the time.
Geostationary
12 of 15
The use of geostationary satellites can be used for Global Positioning Systems (GPS), weather forecasting, satellite phone calls and satellite __________.
Television
13 of 15
Geostationary satellites are in much higher orbits (36000km), therefore the gravitational force on them is ______. They move slowly and have further to travel.
Weaker
14 of 15
A comet orbits the sun in an __________ loop, whereas the planets have almost circular orbits.
Elliptical
15 of 15
Other cards in this set
Card 2
Front
An example of this is that the Moon orbits the Earth as a _______ satellite.
Back
Natural
Card 3
Front
Satellites which have been put into space by humans.
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