Orbit Flashcards
1
Q
Centripetal force
A
Force towards centre causes acceleration and changes velocity
2
Q
Orbital motion
A
^ velocity
< gravity (centripetal force)
3
Q
Speed of orbit
A
Speed of orbit = 2πr / time taken to orbit
4
Q
Satellite
A
Any object that orbits a larger mass object due to gravity
5
Q
Asteroid
A
Irregularly shaped lumps of rock that orbit the sun
6
Q
Comet
A
Lumps of ice, rock and dust that orbit the sun
7
Q
Geostationary orbit
A
Widest <—>
Uses
-GPS
-communication
-broadcast
8
Q
Polar orbit
A
v^
Uses
-weather forecast
-photography
9
Q
Low earth orbit
A
< >
10
Q
Heliocentric
A
Sun centred
