Topic 1: Planet Earth

Question 1

What shape is the Earth?

Answer 1

Oblate spheroid

Question 2

Name the internal divisions of Earth starting with Crust

Answer 2

Crust
Mantle
Outer Core
Inner Core

Question 3

What is the mean diameter of the Earth in km?

Answer 3

13000km

Question 4

Latitude is a measure of how ______ or ______ something is relative to the equator

Answer 4

north or south

Question 5

Longitude is a measure of how ______ or ______ something is relative to the equator

Answer 5

east or west

Question 6

TRUE or FALSE. Planets do not scintillate

Answer 6

true

Question 7

What is light pollution?

Answer 7

Light pollution is when man made lights interact with the atmosphere

Question 8

Name the lines of latitude of the Earth.

Answer 8

arctic circle, antarctic circle, tropic of cancer, tropic of capricorn and the equator

Question 9

Is the international date line a line of longitude or latitude?

Answer 9

line of longitude

Question 10

What happens to light from the star as it reaches the atmosphere? What is it called?

Answer 10

As light from the star reaches the atmosphere, it refracts as it interacts with particles in the atmosphere. It is called Twinkling/Scintillation

Question 11

Which line of significance is at 23.5 N

Answer 11

Tropic of Cancer

Question 12

Which line of significance is at 23.5 S

Answer 12

Tropic of Capricorn

Question 13

Which line of significance is at 66.5 N

Answer 13

Arctic Circle

Question 14

Which line of significance is at 66.5 S

Answer 14

Antarctic Circle

Question 15

Which line of significance is at 0 N/S

Answer 15

Equator

Question 16

Give one method of improving observations despite light pollution

Answer 16

Averted Vision or Dark Adaptation

Question 17

Name one benefit of the atmosphere?

Answer 17

Absorbs UV/ Absorbs radiation, Oxygen Supply, Protection from Meteoroids

Question 18

Who found that people in the north will see different stars to those in the south?

Answer 18

Aristotle