What is the shape of the path in which the earth moves around the sun An elliptical path. |
What is a leap year ?
Such a year which has 366 days, is called a leap year. Every fourth year is a leap year. The month of February has 29 days instead of 28 in a leap year.
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On which day all places on the northern hemisphere have the longest day and the shortest night ?
On 21th June. |
On which day, all places on the southern hemisphere have the longest day and the shortest night?
22nd December
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What is autumnal equinox ?
On September 23, days and nights become equal all over the world, this is called autumnal equinox.
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What is vernal equinox ?
On 21 March, all places on the earth have equal days and nights, this is called vernal equinox |
In which direction the earth moves ?
From west to east.
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What is the circle of illumination ?
The circle which divides the earth into a light half and a dark half is called the circle of illumination. |
At what speed the earth revolves around the sun ?
29.8 kilometer/second or about 1,00,000 kilometer/hour.
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How much time the earth takes to complete one revolution ?
365 days and 6 hours, this period of time is called one year.
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At which place the duration of day and night is equal throughout the year ?
At any place on the equator |
Why the days and nights are unequal on the earth ?
Because the earth's axis is tilted.
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What is the average distance from the Earth to the Moon?
238,857 miles (384,403.1 km) |
What is the average distance from the Earth to the Sun?
93,020,000 miles (149,669,180 km) |
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