Section A - Maps & Globes Flashcards

latitude, longitude, co - ordinates, distance measurement, scale, rotation and revolution of the earth and their effects. Longitude and Time Calculations (39 cards)

1
Q

What is latitude?

A

The distance north or south of the Equator

Latitude is measured in degrees.

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2
Q

What is longitude?

A

The distance east or west of the Prime Meridian

Longitude is also measured in degrees.

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3
Q

What is the line of 0° latitude called?

A

The Equator

It serves as the starting point for measuring latitude.

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4
Q

What is the latitude of the North Pole?

A

90° N

This represents the furthest point north on Earth.

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5
Q

What is the latitude of the South Pole?

A

90° S

This represents the furthest point south on Earth.

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6
Q

What are parallels of latitude?

A

Imaginary circles around the Earth that are parallel to the Equator

They represent degrees of latitude.

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7
Q

What are lines of longitude known as?

A

Meridians

They meet at the Poles.

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8
Q

What is the line of 0° longitude called?

A

The Prime Meridian

It runs through Greenwich, England.

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9
Q

Fill in the blank: The latitude of every point in between the poles is some degree either north or south, from _______ to _______.

A

0° to 90°

This defines the range of possible latitudes.

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10
Q

What is a scale in the context of maps?

A

A scale expresses the relationship between the size of the map and the actual size of the area it represents

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11
Q

How can a scale be represented on a map?

A

A word scale or a line scale

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12
Q

What is an example of a large scale map?

A

1 cm represents 50 m

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13
Q

What is an example of a small scale map?

A

1 cm represents 100 km

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14
Q

What type of map would have a scale where 1 cm represents 1 500 km?

A

A very small scale map showing the whole world

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15
Q

What type of map would have a scale where 1 cm represents 500 m?

A

A large scale map showing a local area

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16
Q

What scales can be found in an atlas?

A

World, regional, local

17
Q

True or False: A regional map can only be a small scale map.

18
Q

Fill in the blank: A local map would be a _______ scale.

19
Q

What does a small scale map represent?

A

A larger area with less detail

20
Q

What does a large scale map represent?

A

A smaller area with more detail

21
Q

Name two types of scales that can be used on maps.

A

Word scale, line scale

22
Q

How often does Earth rotate on its axis?

A

Earth rotates on its axis once every 24 hours.

23
Q

What results from Earth’s rotation?

A

Earth’s rotation results in day and night.

24
Q

What is the time difference between two meridians 15° apart?

A

There is a difference of 1 hour between two meridians 15° apart.

25
In which direction does Earth rotate?
Earth rotates from west to east.
26
Where does the sun appear to rise and set?
The sun appears to rise in the east and set in the west.
27
How long does it take for Earth to rotate through 1° of longitude?
It takes Earth 4 minutes to rotate through 1° of longitude.
28
How long does it take for Earth to rotate through 15° of longitude?
Earth will rotate through 15° of longitude in 1 hour (60 minutes).
29
How does the sun's position affect time zones?
Places to the east get the morning sun before those to the west.
30
What can we calculate if we know the longitude of two places?
We can calculate the difference in time between those places.
31
What is South African Standard Time based on?
South Africa has set its time at 30° E, which is the line of longitude that runs through South Africa.
32
How many hours ahead is South Africa compared to Greenwich Mean Time?
South Africa is two hours ahead of Greenwich in London, which is on longitude 0°.
33
What is the tilt of the Earth's axis?
The axis of the Earth is tilted at an angle of 23.5° from perpendicular.
34
How long does it take for the Earth to revolve around the sun?
Earth takes 365 days to revolve around the sun once.
35
What is a leap year?
Every fourth year is given an extra day and is called a leap year.
36
What are the effects of the Earth's revolution and axial tilt?
The effects include: • changes in the altitude (angle) of the noon sun at different times of the year, • varying lengths of day and night at different times of the year, • the four seasons.
37
When do the solstices occur?
The solstices occur on June 21 when the sun at noon is directly overhead the Tropic of Cancer and on December 21 when the sun at noon is directly overhead the Tropic of Capricorn.
38
What causes seasonal temperature changes?
Seasonal temperature changes are caused by: • the tilt of the Earth's axis away or toward the sun as it travels through its year-long journey around the sun, • the number of daylight hours, • the varying angle of the noon sun.
39
How do seasons vary across the Earth?
All parts of the Earth (except at the Equator) have seasons when summer is hotter than winter.