CH 5: Mapwork Skills

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What is the latitude of the Equator?

0° (correct)

90°

180°

45°

Which line is used to measure the north-south position on Earth?

Longitude

Tropic of Cancer

Prime Meridian

Equator (correct)

How many minutes can each degree of latitude and longitude be subdivided into?

60 (correct)

30

100

45

Which direction does the True Bearing measure angles relative to?

'N' Signup and view all the answers

If a place is described as 45° 20' 30" N, where is it located?

Northern Hemisphere Signup and view all the answers

What is magnetic declination?

The angle between true north and magnetic north Signup and view all the answers

How does the magnetic bearing in South Africa relate to true north?

It lies west of true north Signup and view all the answers

What happens when you subtract the magnetic declination from the magnetic bearing?

You find the true bearing Signup and view all the answers

In the conversion between square meters (m²) and hectares, what is the relationship?

1 hectare equals 100 m² Signup and view all the answers

Which measurement unit is typically used to express area in calculations for mapping and land use planning?

Square meters (m²) Signup and view all the answers

What is the relationship between square kilometers (km²) and hectares when converting?

1 km² equals 100 hectares Signup and view all the answers

In map calculations, if you know the true bearing, how can you find the magnetic bearing?

Add the magnetic declination to the true bearing Signup and view all the answers

Why is precise handling of measurements and conversions important in mapping and land use planning?

To avoid errors in location data Signup and view all the answers

What is the main purpose of geographic coordinates?

To define any location on Earth Signup and view all the answers

How are lines of latitude different from lines of longitude?

Latitude measures north-south position, and longitude measures east-west position Signup and view all the answers

What is the reference point for measuring true bearings?

The North Pole Signup and view all the answers

How is direction described using compass points?

With basic cardinal directions Signup and view all the answers

What does the Prime Meridian represent?

0° longitude Signup and view all the answers

How are degrees subdivided in geographic coordinates for precise pinpointing?

Each degree can be divided into 60 minutes and each minute into 60 seconds Signup and view all the answers

What is magnetic bearing?

The angle between true north and magnetic north Signup and view all the answers

How do you calculate true bearing?

Subtract the magnetic declination from the magnetic bearing Signup and view all the answers

What is the relationship between hectares and square meters?

1 hectare = 10,000 square meters Signup and view all the answers

Where does magnetic north lie in South Africa compared to true north?

West Signup and view all the answers

What does magnetic declination represent?

The angle between true north and magnetic north Signup and view all the answers

How do you convert square kilometers to hectares?

Multiply by 100 Signup and view all the answers

Why is precise handling of measurements important in mapping and land use planning?

To ensure accurate results in mapping and planning Signup and view all the answers

What is the main purpose of lines of longitude?

To measure east-west position Signup and view all the answers

When subdividing degrees in geographic coordinates, what does each minute represent?

0.6 degrees Signup and view all the answers

What is the true bearing measured relative to?

True north Signup and view all the answers

What role do compass points play in understanding direction?

Helping describe direction between geographic features Signup and view all the answers

How are minutes in geographic coordinates further subdivided for pinpointing precise locations?

Into seconds Signup and view all the answers

In terms of geographic positioning, what does the Prime Meridian represent?

0° longitude Signup and view all the answers

When calculating the magnetic bearing, what should be added to the true bearing?

Magnetic declination Signup and view all the answers

For area calculations, what is the relationship between hectares and square meters?

1 hectare = 10,000 square meters Signup and view all the answers

Where does magnetic declination come into play when calculating bearings?

It is added to the true bearing to calculate magnetic bearing Signup and view all the answers

In South Africa, where does magnetic north lie in relation to true north?

West Signup and view all the answers

What is the purpose of calculating true bearings in navigation and mapping?

To establish positions relative to true north Signup and view all the answers

In geographic measurements, what is the reference point for calculating magnetic bearings?

Magnetic North Pole Signup and view all the answers

'1 km² equals how many hectares?' - This question would be most relevant in which context?

Area calculations for land use planning Signup and view all the answers

CH 5: Mapwork Skills

Podcast Beta

Questions and Answers

What is the latitude of the Equator?

Which line is used to measure the north-south position on Earth?

How many minutes can each degree of latitude and longitude be subdivided into?

Which direction does the True Bearing measure angles relative to?

If a place is described as 45° 20' 30" N, where is it located?

What is magnetic declination?

How does the magnetic bearing in South Africa relate to true north?

What happens when you subtract the magnetic declination from the magnetic bearing?

In the conversion between square meters (m²) and hectares, what is the relationship?

Which measurement unit is typically used to express area in calculations for mapping and land use planning?

What is the relationship between square kilometers (km²) and hectares when converting?

In map calculations, if you know the true bearing, how can you find the magnetic bearing?

Why is precise handling of measurements and conversions important in mapping and land use planning?

What is the main purpose of geographic coordinates?

How are lines of latitude different from lines of longitude?

What is the reference point for measuring true bearings?

How is direction described using compass points?

What does the Prime Meridian represent?

How are degrees subdivided in geographic coordinates for precise pinpointing?

What is magnetic bearing?

How do you calculate true bearing?

What is the relationship between hectares and square meters?

Where does magnetic north lie in South Africa compared to true north?

What does magnetic declination represent?

How do you convert square kilometers to hectares?

Why is precise handling of measurements important in mapping and land use planning?

What is the main purpose of lines of longitude?

When subdividing degrees in geographic coordinates, what does each minute represent?

What is the true bearing measured relative to?

What role do compass points play in understanding direction?

How are minutes in geographic coordinates further subdivided for pinpointing precise locations?

In terms of geographic positioning, what does the Prime Meridian represent?

When calculating the magnetic bearing, what should be added to the true bearing?

For area calculations, what is the relationship between hectares and square meters?

Where does magnetic declination come into play when calculating bearings?

In South Africa, where does magnetic north lie in relation to true north?

What is the purpose of calculating true bearings in navigation and mapping?

In geographic measurements, what is the reference point for calculating magnetic bearings?

'1 km² equals how many hectares?' - This question would be most relevant in which context?

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