29.2 Flashcards

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1
Q

Is an area 15 degrees wide in which the time zone is the same.

A

Time zones

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2
Q

The spinning of earth on its axis an imaginary line drawn from earths north pole to its south pole.

A

Rotation

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3
Q

Is the motion of earths annual revolution

A

Revolution

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4
Q

Is defined as the plane of earths orbit around the sun.

A

Ecliptic

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5
Q

Occurs when earths rotational axis is tilled directly toward the sun or away from the sun.

A

Solstice

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6
Q

Earths rotational axis is perpendicular to a line drawn from the center of earth to the center of the sun.

A

Equinox

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7
Q

Who devised a method of timekeeping around 3000 B.C?

A

The Babylonians

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8
Q

What was the symbol for degree taken from?

A

The sun

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9
Q

How many degrees does the earth spin in one day?

A

360 degrees

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10
Q

How many hours does it take the earth to make one full rotation?

A

24 hours

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11
Q

How many degrees does the earth spin in one hours?

A

15 degrees

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12
Q

What direction does the sun rise?

A

in the east

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13
Q

What direction does the sun set?

A

west

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14
Q

True or false. All time zones are the exact same size?

A

False, they are modified to fit around cities, states, and country borders, and other key sites.

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15
Q

How many time zones are there in the world?

A

24

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16
Q

Which direction do you move to add hours to the time?

A
17
Q

Which direction do you move to subtract hours from the time?

A
18
Q

How many time zones are there in the united states?

A
19
Q

What are the names of the time zones?

A
20
Q

What is a solar day?

A

A full rotation from noon to noon

21
Q

What is a sidereal day?

A

A full rotation looking at a star one night then looking at it again

22
Q

What are the two main reasons for seasons?

A

The tilt of the earth and revolution

23
Q

Which 2 seasons have a solstice?

A
24
Q

Which month is the summer solstice?

A
25
Q

Which month is the winter solstice?

A
26
Q

Which two seasons are equinoxes?

A
27
Q

Which month is the spring equinox?

A
28
Q

Which month is the fall equinox?

A
29
Q

When is the longest day of the year?

A
30
Q

When is the shortest day of the year?

A
31
Q

When are the days almost 12 hours of day and 12 hours of night?

A