Topic 7 Essential Questions and Skills 8-15

Question 1

What is Wind?

Answer 1

The horizontal movement of air from high to low pressure

Question 2

Air over a hot surface will…

Answer 2

1. Move faster
2. Spread apart
3. Rise
4. Less dense

Question 3

Why is there unequal heating?

Answer 3

1. Earth’s surface is curved
2. Different surfaces absorb and reflect energy differently
3. The Earth is tilted

Question 4

What causes high and low pressure areas?

Answer 4

Unequal heating of the atmosphere

Question 5

Air over a cool surface will…

Answer 5

1. Move slower
2. Contract
3. Sink/fall
4. More dense

Question 6

How are winds measured, and then list 2 devices used to measure wind

Answer 6

Winds are named by the direction in which they come from and their speed. Anemometer & Wind Vane

Question 7

When land is hotter than the water, what type of breeze will occur?

Answer 7

Sea Breeze

Question 8

When the water is hotter than the land, what type of breeze will occur?

Answer 8

Land Breeze

Question 9

What is a monsoon?

Answer 9

A seasonal change in wind and precipitation. Its like a land/sea breeze for months. It can also cause rainy and dry seasons

Question 10

What causes monsoons?

Answer 10

Different rates of heating/cooling between the ocean and nearby land

Question 11

The Coriolis Effect causes…

Answer 11

Wind to turn right in the Northern Hemisphere, and left in the Southern Hemisphere

Question 12

Which direction does wind appear to turn in the Northern Hemisphere? Southern?

Answer 12

Wind turns right in the Northern Hemisphere, and left in the Southern Hemisphere

Question 13

Whats a cyclone?

Answer 13

Wind rotating around LOW pressure

Question 14

Whats an anticyclone?

Answer 14

Wind rotating around HIGH pressure

Question 15

What direction do cyclones rotate in the Northern Hemisphere? Southern?

Answer 15

Counter-clockwise, clockwise

Question 16

What direction do anticyclones rotate in the Northern Hemisphere? Southern?

Answer 16

Clockwise, counter-clockwise

Question 17

What is the Jet Stream?

Answer 17

1. 10 KM above Earth
2. Band of high-speed wind blowing W-E
3. Greatly affects weather
4. Follows the sun
5. The winds were used by Japan in WWII to launch balloons carrying bombs

Question 18

What factors influence deep ocean currents?

Answer 18

a) density
b) salinity
c) temperature

Question 19

When warm currents move towards the poles…

Answer 19

They become cooler and saltier as water evaporates and as ice forms. This cold and salty water sinks and flows along the ocean floor.