P3.2.4 - Spacecraft and Satellites Flashcards

1
Q

Which force must be overcome for a rocket to take off?

A

Gravity

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2
Q

Which force helps a rocket to overcome the force of gravity?

A

Upthrust

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3
Q

Which force keeps a satellite in orbit?

A

gravity

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4
Q

Describe how a satellite is launched into orbit?

A

It must be fired at the correct height.

It must be fired at the correct speed.

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5
Q

A satellite that stays in the same position on Earth all of the time is in which type of orbit?

A

geostationary orbit

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6
Q

Satellites that are in geostationary orbit are used for what?

A

Broadcasting television signals (SKY TV)

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7
Q

What does LEO stand for?

A

Low Earth Orbit

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8
Q

How do low earth orbit satellites orbit the earth?

A

They orbit the north and south poles

They orbit a small distance from the Earth.

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9
Q

Polar orbit satellits are useful for what?

A

Mapping (e.g. Google Maps)

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10
Q

Give an example of a satellite that is in low earth orbit.

A

The International Space Station (ISS)

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11
Q

What is a satellite?

A

Any object that orbits a planet

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12
Q

What is the Earths ‘natural satellite’ also known as?

A

The Moon

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