Time 03 Flashcards
Which way does the way rotate?
Rotates eastwards (anti-clockwise)
At what angle is the earth tilted?
23.5 degrees
How many seasons are there?
4 season.
List the 4 seasons
December-Winter solstice
March- Spring (vernal equinox)
June- Summer solstice
September-Autumnal equinox
What is noon?
The point on the earths surface when the sun reaches the highest point in the sky during any given day.
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?
True.
Define Night
The hours between the end of evening civil twilight and the beginning of morning civil twilight.
Define Civil twilight
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
Mean solar time is based on the motion of an imaginary sun travelling at an even rate throughout the year. True or False?
True.
List the 3 sorts of time
1) Co-ordinated Universal Time (UTC)
2) Zone Time
3) Local Time
What does UTC assume?
Assumes the sun crosses the prime meridian at 1200hrs (uses 24 hour clock).
The world is divided into _____\______ each covering ____________ of longitude. It is ___________ either side of the line.
Time/Zones
15 degrees
7.5 degrees
If the country is to the east of the prime meridian then they are_______
Ahead
What is the international date line?
An irregularly drawn line ok the map of the Pacific Ocean. Near and coincident with the 180th Meridian
How many time zones are there?
24
