Time 03 Flashcards

1
Q

Which way does the way rotate?

A

Rotates eastwards (anti-clockwise)

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2
Q

At what angle is the earth tilted?

A

23.5 degrees

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3
Q

How many seasons are there?

A

4 season.

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4
Q

List the 4 seasons

A

December-Winter solstice
March- Spring (vernal equinox)
June- Summer solstice
September-Autumnal equinox

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5
Q

What is noon?

A

The point on the earths surface when the sun reaches the highest point in the sky during any given day.

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6
Q

The length of the day, according to the solar time is not the same throughout the year because the apparent motion of the sun varies. True or False?

A

True.

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7
Q

Define Night

A

The hours between the end of evening civil twilight and the beginning of morning civil twilight.

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8
Q

Define Civil twilight

A

Ends in the evening when the centre of the sun’s disc is 6 degrees below the horizon and begins in the morning when the centre of the sun’s disc is 6 degrees below the horizon

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9
Q

Mean solar time is based on the motion of an imaginary sun travelling at an even rate throughout the year. True or False?

A

True.

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10
Q

List the 3 sorts of time

A

1) Co-ordinated Universal Time (UTC)
2) Zone Time
3) Local Time

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11
Q

What does UTC assume?

A

Assumes the sun crosses the prime meridian at 1200hrs (uses 24 hour clock).

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12
Q

The world is divided into _____\______ each covering ____________ of longitude. It is ___________ either side of the line.

A

Time/Zones
15 degrees
7.5 degrees

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13
Q

If the country is to the east of the prime meridian then they are_______

A

Ahead

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14
Q

What is the international date line?

A

An irregularly drawn line ok the map of the Pacific Ocean. Near and coincident with the 180th Meridian

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15
Q

How many time zones are there?

A

24

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