Earths Energy Budget *G11

Question 1

How is the earth heated

Answer 1

Insolation

Question 2

The amount of heat on earth depends on…

Answer 2

The amount of insolation

Question 3

The amount of insolation depends on… *2

Answer 3

Latitude
Seasons

Question 4

Where is insolation the greatest and weakest at *2

Answer 4

Greatest @ equator (0)
Weakest towards the poles (90)

Question 5

Explain why it is hotter at the equator than at the poles *2

Answer 5

• at the equator, the sun is directly overhead throughout the year + heat is spread over a small area
  *at the poles, the sun strikes at a low angle + heat is spread over a large area

Question 6

Give the coordination for:
The equator
The tropics
The Antarctic circles
The poles
*4

Answer 6

equator = 0
* tropic of cancer = 23.5N
Tropic of Capricorn = 23.5S
antarctic circles = 66.5 N and S
the poles = 90N and S

Question 7

The earth completes one rotation every…

Answer 7

24h

Question 8

What determines daytime and nighttime *2

Answer 8

• daytime = facing sun + receiving insolation
  *nighttime = away from sun

Question 9

What would happen if earths axis was vertical *2

Answer 9

*equal 12h day and night throughout the year
*no seasons

Question 10

How long is a revolution

Answer 10

365 1/4 days

Question 11

Give three facts about summer solstice *3

Answer 11

*21 Dec
*long days short nights
*receive most insolation

Question 12

Give two facts about autumn equinox *2

Answer 12

*21 March
*day and nights are equal length

Question 13

Give three facts about winter solstice *3

Answer 13

*21 June
*long days short nights
*receive least insolation

Question 14

Give two facts about spring equinox *2

Answer 14

*23 September
*day and night are equal length

Question 15

Current definition

Answer 15

Movement of something in a particular direction

Question 16

Warm water is carried from … to … *2

Answer 16

*Equator
*Poles

Question 17

Cool water is carried from … to … *2

Answer 17

*poles
*equator

Question 18

Ocean currents are ….. than surrounding seas

Answer 18

Hotter/colder

Question 19

Wind definition

Answer 19

Moving air

Question 20

How does wind affect temperature over land/sea

Answer 20

Wind blow from region A to region B. The weather at region A has an impact (cools/heats) on region B

Question 21

Winds blowing from region to region does what to earth’s surface

Answer 21

It restores the energy balance

Question 22

What are tropical easterlies *2

Answer 22

*winds that blow from subtropical regions to the equator
*brings cooler temperatures (in)

Question 23

What are westerly winds *2

Answer 23

*winds that blow from subtropical regions to temperate regions
*bring warmer temps. (out)

Question 24

What are polar easterlies *2

Answer 24

*winds that blow from polar regions to sub polar regions
*bring colder temperatures (in)

Question 25

What does ITCZ cause

Answer 25

Wet and dry seasons between tropics

Question 26

When is the ITCZ during Jan

Answer 26

equator toward the bottom

Question 27

Where is ITCZ during July

Answer 27

equator higher part

Question 28

What is the ITCZ

Answer 28

Intertropical Convergence Zone
Zone where two sets of tropical easterlies convergence

Question 29

Where is ITCZ in January

Answer 29

Lower part of equator

Question 30

Where is ITCZ in July

Answer 30

Higher towards the equator (heat distribution there)