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Question Bank
Questions for SOLAR SYSTEM
Answer the following questions
Test Mode
Training Mode
1. Sun will appear at same latitude
Once a day
Twice a year
Once a year
2. Which is the highest latitude listed below at which the sun will rise above the horizon and set every day?
66°
72°
68°
3. At what approximate date is the earth closest to the sun (perihelion)?
End of June
Beginning of July
Beginning of January
4. All heavenly bodies rise
Some in the East and some in the West depending upon the hemisphere.
In the East.
In the West.
5. What is the reason for seasonal changes in climate?
Because the Earth's orbital speed round the sun varies according to the time of the year.
Because the distance between the Earth and the Sun varies over a year.
Because the Earth's spin axis is inclined to 'the plane of its orbit round the Sun.
6. Seasons are due to the
Earth's elliptical orbit around the Sun
Earth's rotation on its polar axis
inclination of the polar axis with the ecliptic plane
7. At what approximate date is the earth furthest from the sun (aphelion)?
Beginning of July
Beginning of January
End of December
8. The main reason that day and night, throughout the year, have different duration, is due to the?
Relative speed of the sun along the ecliptic.
Inclination of the ecliptic to the equator.
Earth's rotation.
9. What is the highest latitude listed below at which the sun will reach an altitude of 90° above the horizon at some time during the year?
23°
66°
45°
10. When the length of the day is measured with reference to the passage of the apparent sun
The length of the day will vary with the latitude of the observer.
The length of the day will be the same once every month.
The length of the day will wary in the course of the year.
11. In its path around the Sun, the axis of the Earth has an inclination
varying with the season of the year.
varying between zero and 23° 27 with the plane of the pat
of 66°33' with the plane of the path.
12. The term Aphelion is used to describe
The relationship between the length of the day and the length of the night.
The relative position between the earth and the moon.
The situation when the distance between the sun and the earth is at its longest.
13. The direction of the Earths rotation on its axis is such that
Any point on the surface of the Earth will move westward.
Any point on the surface of the Earth will move eastward.
Observed from the point above the North Pole, the rotation is counter-clockwise.
14. The mean sun
Is only of interest to users of astronomical navigation.
Moves with constant speed along the celestial equator.
Is the middle position of the sun.
15. Civil twilight is defined by
sun altitude is 6° below the celestial horizon
sun altitude is 18° below the celestial horizon
sun altitude is 12° below the celestial horizon
16. The angle between the plane of the ecliptic and the plane of equator is approximately
27.5°
23.5°
66.5°
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