Q1. What is a Moon?
A celestial body, and the natural satellite of the Earth.
Q2. Moon revolves around which planet?
Earth and also rotates on its own axis.
Q3. What is the diameter of the Moon?
3475 Kms - about quarter the size of earth.
Q4. What is the distance of Moon from Earth?
376284 Kms from surface to surface. 384400 Kms from center to center.
Q5. How much time does Moon take to complete one revolution around Earth?
27 days 7 Hrs 43 Minutes and 11.5 seconds.
Q6. How much time does the Moon take to rotate on its own axis?
28 days.
Q7. What is a Full Moon?
When the Earth comes between the Moon and the Sun, it is called Full Moon.
Q8. What is a New Moon?
When the Moon comes between Earth and Sun, it is called so.
Q9. What is a Blue Moon?
When two full moons occur in the same month, the second one is called so.
Q10. Which is the only month, in recorded history not to have a Full Moon?
February 1865.
Q11. What is "Sea of Tranquility"?
A place on the Moon's surface where the space vehicle APOLLO XI landed man for the first time on 24.7.1969. It was called so by the first astronaut to land on the moon Neil Armstrong.
Q12. What is a Lunar Day?
The period of time taken by the Earth to rotate once in relation to the moon is known as Lunar Day. It is about 24 Hrs and 50 minutes, because while the Earth rotates, the Moon also orbits about the Center of Gravity of the earth and Moon.
Q13. What is a Lunar Month?
The interval of time in which the Moon takes to complete one revolution around the Earth from New Moon to New Moon - it is about 29.5 days.
Q14. How much time does the light of the Moon take to reach the Earth?
1.3 Seconds.
Q15. In which direction does the Moon orbit around the Sun?
West to East.
Q16. What is the orbital speed of the Moon?
3680 Kms per second.
Q17. How does the "halo" around the Moon occur?
A ring of light or colour around the Moon caused by the reflection of ice crystals on the surface of the Moon.
Q18. What does "Umbras" mean?
Earth's shadow on the Moon.
Q19. What is the prominent crater on the Moon called?
Tycho.
Q20. How much of the Moon's surface can be seen from the Earth's surface.
59%.
Q21. When the Moon is at its greatest distance from Earth, it is called?
Apogee.
Q22. Moon is the first subsidiary of the solar system ?
To be visited by mankind.
Q23. On which date man landed on the Moon first?
24.7.1969 by APOLLO XI space vehicle.
Q24. Who was the first person to set his foot on the Moon?
Neil Armstrong USA (with his left foot first).
Q25. Who was the second person to set his foot on the Moon?
Edwin Aldrin USA.
Q26. Which American President's signed plaque is on the Moon?
Robert Nixon. It also has the signatures of Neil Armstrong , Michael Collins and Edwin Aldrin.
Q27. What was the first fruit eaten on the Moon?
Peach.
Q28. What was the first game played on the Moon?
Golf.
Q29. The fullmoon that follows the harvest moon is called?
The Hunter's Moon.
Q30. Which only human being's remains are put on the Moon's surface?
Eugene Shoemaker's, who co-invented the comet 'Shoemaker Levy'. His ashes were carried by Nasa's spacecraft LUNAR PROSPECTOR in July 1999.
Q31. What are the Chemical composition of lunar surface?
| 1. Silica |
45.5% |
| 2. Alumina |
24.0% |
| 3. Lime |
15.9% |
| 4. Iron Oxide |
5.9% |
| 5. Magnesia |
7.5% |
| 6. Titanium di oxide |
0.6% |
| 7. Sodium di oxide |
0.6% |
Q32. What are the characteristics of Moon?
1. It is the fifth largest satellite in the solar system.
2. Second densest satellite after "LO" (a satellite) of Jupiter.
3. It is the brightest object in the sky after Sun.
4. Moon's gravitational influence produces the ocean tides and the minute lengthening of the day.
5. Moon is the only celestial body on which humans have set foot.
6. There are nearly 300000 craters wider than 1 Km caused by the collission of asteroids and comets.
