Space And Exploration

Question 1

Two thungs that scientists do to collect evidence?

Answer 1

Use observations and measurements

Question 2

What is the model of the universe with earth at the centre?

Answer 2

Geocentric

Question 3

What is the type of motion where planets appear to move backwards?

Answer 3

Retrograde motion

Question 4

What is the model of the sun at the centre of the solar system?

Answer 4

Heliocentric

Question 5

How do scientists believe that the universe started?

Answer 5

The Big Bang

Question 6

How many years ago was our solar system formed?

Answer 6

5 billion years

Question 7

When did life on earth start?

Answer 7

4 billion years ago

Question 8

What are the three types of orbits in satellites?

Answer 8

• Low Earth Orbit (LEO)
• Low Polar Orbit
• Geostationary Orbit

Question 9

What satellite orbit stays in the same place over earth?

Answer 9

Geostationary

Question 10

Name a risk that can happen when going into space

Answer 10

• Injuries
• Damaged equipment

Question 11

How many Apollo missions to the moon were there?

Answer 11

20

Question 12

What is the word used to describe a material that gives out radiation?

Answer 12

Radioactive

Question 13

What scientist created the first model of a Geocentric universe?

Answer 13

Eudoxus created the first model in 380 B.C. but it then was claimed by Aristotle.

Question 14

What scientist is the Hubble Space Telescope named after?

Answer 14

Edwin Hubble

Question 15

What theory explains why galaxies are moving further apart?

Answer 15

The Big Bang Theory