Orbit

Question 1

Centripetal force

Answer 1

Force towards centre causes acceleration and changes velocity

Question 2

Orbital motion

Answer 2

^ velocity
< gravity (centripetal force)

Question 3

Speed of orbit

Answer 3

Speed of orbit = 2πr / time taken to orbit

Question 4

Satellite

Answer 4

Any object that orbits a larger mass object due to gravity

Question 5

Asteroid

Answer 5

Irregularly shaped lumps of rock that orbit the sun

Question 6

Comet

Answer 6

Lumps of ice, rock and dust that orbit the sun

Question 7

Geostationary orbit

Answer 7

Widest <—>

Uses
-GPS
-communication
-broadcast

Question 8

Polar orbit

Answer 8

v^

Uses
-weather forecast
-photography

Question 9

Low earth orbit

Answer 9

< >

Question 10

Heliocentric

Answer 10

Sun centred