P3.2.4 - Spacecraft and Satellites

Question 1

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

Answer 1

Gravity

Question 2

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

Answer 2

Upthrust

Question 3

Which force keeps a satellite in orbit?

Answer 3

gravity

Question 4

Describe how a satellite is launched into orbit?

Answer 4

It must be fired at the correct height.

It must be fired at the correct speed.

Question 5

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

Answer 5

geostationary orbit

Question 6

Satellites that are in geostationary orbit are used for what?

Answer 6

Broadcasting television signals (SKY TV)

Question 7

What does LEO stand for?

Answer 7

Low Earth Orbit

Question 8

How do low earth orbit satellites orbit the earth?

Answer 8

They orbit the north and south poles

They orbit a small distance from the Earth.

Question 9

Polar orbit satellits are useful for what?

Answer 9

Mapping (e.g. Google Maps)

Question 10

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

Answer 10

The International Space Station (ISS)

Question 11

What is a satellite?

Answer 11

Any object that orbits a planet

Question 12

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

Answer 12

The Moon