Orbit Flashcards

1
Q

Centripetal force

A

Force towards centre causes acceleration and changes velocity

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2
Q

Orbital motion

A

^ velocity
< gravity (centripetal force)

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3
Q

Speed of orbit

A

Speed of orbit = 2πr / time taken to orbit

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4
Q

Satellite

A

Any object that orbits a larger mass object due to gravity

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5
Q

Asteroid

A

Irregularly shaped lumps of rock that orbit the sun

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6
Q

Comet

A

Lumps of ice, rock and dust that orbit the sun

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7
Q

Geostationary orbit

A

Widest <—>

Uses
-GPS
-communication
-broadcast

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8
Q

Polar orbit

A

v^

Uses
-weather forecast
-photography

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9
Q

Low earth orbit

A

< >

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10
Q

Heliocentric

A

Sun centred

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