Exploring The Moon (Topic 9)

Question 1

What are the differences in the internal divisions of the earth and moon

Answer 1

.The mean thickness of the lunar crust is 50-60km typically 3x that of the earth- the thickness of the lunar highlands on the far side can be up to 160km
.the radius of the moons core is less than 25% of the moons radius(on earth it’s more than 50%)
.the moons core is not at the centre of the moon but offset by 2km towards the earth (the near side)

Question 2

When was the first time we saw the far side of the moon

Answer 2

1959

Question 3

Which probe saw the far side of the moon

Answer 3

Luna 3

Question 4

What did the probe see on the far side of the moon

Answer 4

Lots of cratered highlands and one noteworthy sea (mare moscoviense)

Question 5

When did JFK make his speech announcing the Apollo space programme

Answer 5

1961

Question 6

What are the theory’s of the moons formation

Answer 6

.giant impact hypothesis
.fission theory
.capture theory
.condensation theory

Question 7

Fission theory?

Answer 7

The earth was spinning so fast that a section (that is now the Pacific Ocean) flew of and formed the moon

Question 8

Capture theory?

Answer 8

The earth and moon formed at different parts of the solar system but the moon was “captured” by the earths gravity

Question 9

Condensation theory

Answer 9

The earth and moon formed together at the same time out of the material from the solar nebular

Question 10

Giant impact hypothesis

Answer 10

A large body about mars sized (theia) struck an old earth, theia and part of earth were vaporised and condensed into the moon