(a)
What is the angle of inclination of the earth's axis with its orbital plane?
(b)
Define rotation and revolution.
(c)
What is a leap year?
(d)
Differentiate between the Summer and Winter Solstice.
(e)
What is an equinox?
(f)
Why does the Southern Hemisphere experience Winter and Summer Solstice
in different times than that of the Northern Hemisphere?
(g)
Why do the poles experience about six months day and six months night?
1. Answer the following questions briefly.
Answers
Answer:
a . 23.5 degrees
b.When an object turns around an internal axis (like the Earth turns around its axis) it is called a rotation. When an object circles an external axis (like the Earth circles the sun) it is called a revolution.
c : leap year is a year, occurring once every four years, which has 366 days including 29 February as an intercalary day.
d :The day that the Earth's North Pole is tilted closest to the sun is called the summer solstice. ... It is also the day that the Sun reaches its highest point in the sky. The winter solstice, or the shortest day of the year, happens when the Earth's North Pole is tilted farthest from the Sun.
e: An equinox is a point in the year when daytime and nighttime are exactly the same length, 12 hours each. Equinoxes occur twice a year, usually on March 20 and Sept. 22, when the Earth is tilted neither toward nor away from the sun.
f : The Southern Hemisphere experience Winter and Summer Solstice in different times than that of the Northern Hemisphere because: When the North Pole is tilted towards the Sun, the Northern Hemisphere experiences Summer Solstice. ... These conditions are reversed when the South hemisphere is tilted towards the Sun.
g :The poles experience about six months of day and six months of night due to the tilt of the earth on its axis. Because of this tilt, each pole is tilted towards and away from the sun for about six months each. When the North Pole is tilted towards the sun, it experiences continuous daylight for six months.