Charts and Maps Flashcards

Charts and Maps (and previous lessons)

1
Q

two dimensional representation of the Earth’s 3D surface

A

Maps and Charts

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2
Q

show the land feature of the Earth

A

Maps

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3
Q

display the ocean and their features

A

Charts

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4
Q

Maps and charts are made by
projecting the features of the
earth’s surface together with
reference lines onto a surface
to produce a ___________

A

chart projection

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5
Q

The earth is essentially a sphere, and a circle drawn around the
center of the earth perpendicular to its axis of rotation is the

A

equator

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6
Q

True or False:

0 degrees latitude - Equator

A

True

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7
Q

True or False

0 degrees longitude - equator

A

False

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8
Q

North Pole is __ degrees north of Equator

A

90

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9
Q

South Pole is __ degrees South of the equator

A

90

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10
Q

show how deep the water is

A

Bathymetric charts

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11
Q

show what the seafloor actually looks like in terms of shape and structure.

A

Physiographic charts

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12
Q

True or False:

Line of longitude forms a progressively smaller circle

A

False

it must be line of latitude

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13
Q

set the boundaries of what is called the tropics

A

Tropics of Cancer (23.5 degrees N)
Tropics of Capricorn (23.5 degrees S)

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14
Q

Reference lines (latitude) that marks the boundaries of the polar regions

A

Arctic Circle and Antarctic Circle

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15
Q

Latitude lines are sometimes referred to as

A

Parallels

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16
Q

lines that run in an east-west direction

A

Latitude

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17
Q

measures distance North or South from the equator

A

Latitude

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18
Q

True or False:

Latitude lines are parallel to one another and can never meet

A

True

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19
Q

Latitude Lines cross the ______ at right angles

A

Prime meridian

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20
Q

lie in planes that cross the earth’s axis at right angles

A

latitude

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21
Q

longest latitude line

A

Equator

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22
Q

get shorter towards the pole, with only the equator, the longest, a great circle

A

latitude

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23
Q

lines of longitude are also known as

A

meridians

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24
Q

are at right angles to the latitude lines, extending from the North Pole to the South Pole.

A

lines of longitude

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25
Primary Line of Longitude
Prime Meridian
26
0 degrees longitude
Prime meridian
27
Opposite the prime meridian at 180 degrees is a line that approximates the _________
international date line
28
# True or False: Unlike latitude lines, longitude lines all form circles of the same size, because each passes through the earth’s poles and equator
True
29
run in a north-south direction
longitude
30
measure distance east or west of the prime meridian
longitude
31
are farthest apart at the equator and meet at the poles
longitude
32
cross the equator at right angles
longitude
33
lie in planes that pass through the Earth's axis
Longitude
34
# True or false: longitudes are equal in length
True
35
are halves of great circles
longitude
36
A common unit of distance used in navigation is the
nautical mile
37
nautical mile is equal to _ of latitude; (1.85 km or 1.15 land miles)
1 minute
38
Early sailors learned to use the _____________ to navigate
sun and stars
38
39
By measuring the angle of _______, using an instrument called _________, a seaman could get a good idea of his latitude, as long as he was in the Northern Hemisphere
North Star; sextant
40
By measuring the angle of the North Star with respect to the horizon, using an instrument called a sextant, a seaman could get a good idea of his __________, as long as he was in the ________________.
latitude; Northern Hemisphere
41
clock that could keep precise time, to determine longitude.
chronometer
42
when was the chronometer built?
1735
43
who invented the chronometer
John Harrison
44
The planet has one global ocean, though oceanographers and the countries of the world have traditionally divided it into four distinct regions:
Pacific Atlantic Indian Arctic
44
huge body of saltwater that covers about 71 percent of Earth’s surface.
Ocean
45
are generally smaller than the ocean, and are located at the point where the ocean meets land.
Sea
46
are often enclosed by land.
Sea
47
is a portion of the ocean that penetrates land. They are generally larger and more deeply indented than bays.
gulf
48
Which is larger? Bay or Gulf
Gulf
49
has a narrow mouth
gulf
50
has a wider mouth
bay
51
# True or False is gulf less enclosed towards the water than bay?
True
52
# true or false: bay is more enclosed in the water than gulf
True
53
# True or False: gulf is connected to the ocean
True
54
# True or False: Bay is connected to the ocean or a lake
True
55
is a body of water partially surrounded by land
bay
56
is usually smaller and less enclosed than a gulf.
bay
57
# True or False: The mouth of the bay, where meets the ocean or lake, is typically wider than that of a gulf
True
58
landform connecting two seas or two water basins.
strait
59
portion of the sea that penetrates the land
gulf
60
narrow passage of water that connects two large bodies of water
strait
61
# True or False: gulf is always a natural formation
True
62
# True or False: Strait can be man-made, and such as a structure is known a canal
true
63
serves as an excellent location for harbours while strait cannot act as harbours
Gulf
64
defined as an elongated water body lying between two landmasses
channel
65
wide strait
channel
66
is a small type of bay or coastal inlet.
coves
67
usually have narrow, restricted entrances, are often circular or oval, and are often situated within a larger bay.
coves
68
artificial waterway constructed to allow the passage of boats or ships inland or to convey water for irrigation.
canal