Astronomy & Space — Part 2: 40 MCQs with Explanations

Escape velocity of a rocket fired from the earth towards the moon is a velocity to get rid of the Earth’s gravitational pull .

Eratosthenes is the correct answer to “Who was the first to measure the earth’s circumference”. Items of this type are drawn from the Astronomy & Space — Part 2 syllabus of Pakistani competitive exams, where the fact is tested verbatim.

The Earth behaves like a magnet with Two poles.

increase is the correct answer to “The time period of a pendulum when taken to the Moon would”. Items of this type are drawn from the Astronomy & Space — Part 2 syllabus of Pakistani competitive exams, where the fact is tested verbatim.

The period of revolution of a geostationary satellite is 24 hours.

Poles is the correct answer to “Intensity of gravitational field of earth is maximum at”. Items of this type are drawn from the Astronomy & Space — Part 2 syllabus of Pakistani competitive exams, where the fact is tested verbatim.

Eco-anxiety is the correct answer to “A state of stress caused by concern for the earth’s environment is called”. Items of this type are drawn from the Astronomy & Space — Part 2 syllabus of Pakistani competitive exams, where the fact is tested verbatim.

It takes equal time for revolution around the earth and rotation on its own axis is the correct answer to “We always see the same face of the moon, because”. Items of this type are drawn from the Astronomy & Space — Part 2 syllabus of Pakistani competitive exams, where the fact is tested verbatim.

82 is the correct answer to “How many moons does Saturn have”. Items of this type are drawn from the Astronomy & Space — Part 2 syllabus of Pakistani competitive exams, where the fact is tested verbatim.

Uranus is the correct answer to “What was the first planet to be discovered using a telescope”. Items of this type are drawn from the Astronomy & Space — Part 2 syllabus of Pakistani competitive exams, where the fact is tested verbatim.

510.94 million km² is the correct answer to “What is total area of the earth”. Items of this type are drawn from the Astronomy & Space — Part 2 syllabus of Pakistani competitive exams, where the fact is tested verbatim.

Mars is the correct answer to “Which planet is losing its atmosphere at faster than the earth”. Items of this type are drawn from the Astronomy & Space — Part 2 syllabus of Pakistani competitive exams, where the fact is tested verbatim.

The nearest Star to the planet earth is Sun .

The mean distance of the earth from the sun is astronomical units is 1 AU .

Venus is the correct answer to “which of the following planets has no moons”. Items of this type are drawn from the Astronomy & Space — Part 2 syllabus of Pakistani competitive exams, where the fact is tested verbatim.

Spiral is the correct answer to “The andromeda Galaxy is which type of the following types of galaxies”. Items of this type are drawn from the Astronomy & Space — Part 2 syllabus of Pakistani competitive exams, where the fact is tested verbatim.

The Alpha Centauri system is the closest star system to our sun..

8 is the correct answer to “How many planets in Solor Syestem”. Items of this type are drawn from the Astronomy & Space — Part 2 syllabus of Pakistani competitive exams, where the fact is tested verbatim.

Uranus is the correct answer to “Which planet is called “Lopsided planet””. Items of this type are drawn from the Astronomy & Space — Part 2 syllabus of Pakistani competitive exams, where the fact is tested verbatim.

Canopus is the correct answer to “which is the second brightest star in the Universe”. Items of this type are drawn from the Astronomy & Space — Part 2 syllabus of Pakistani competitive exams, where the fact is tested verbatim.

UY Scuti is the correct answer to “Which is the biggest star in the Universe”. Items of this type are drawn from the Astronomy & Space — Part 2 syllabus of Pakistani competitive exams, where the fact is tested verbatim.

384,400 km is the correct answer to “What is the average distance of the moon from earth”. Items of this type are drawn from the Astronomy & Space — Part 2 syllabus of Pakistani competitive exams, where the fact is tested verbatim.

The principal constituent of the atmosphere of the Earth is Nitrogen.

Moon is the Natural satellite of the Earth.

Temperature of Sun in Celsius Scale is 6000ºC & in Fahrenheit is 10,832 F .

Troposphere is the correct answer to “Which layer of the atmosphere lies close to the earth”. Items of this type are drawn from the Astronomy & Space — Part 2 syllabus of Pakistani competitive exams, where the fact is tested verbatim.

Nicolaus Copernicus is the correct answer to “Who discovered that the earth was not the center of the universe”. Items of this type are drawn from the Astronomy & Space — Part 2 syllabus of Pakistani competitive exams, where the fact is tested verbatim.

Only planet whose day is longer than its year is Venus .

An active asteroid is discovered near Jupiter Orbit for the first time in billion years.

Sagittarius-A, the Blackhole at the centre of the Milky Way Galaxy is at a distance of 25640 Lightyears .

Mercury, Venus, Earth and Mars are called Terrestrial Planets .

The Renaissance scientist who explained how planets moved around the sun was Kepler.

The Proportion of Hydrogen to Helium in the Sun is 3:1 .

Annular Solar Eclipse is the correct answer to “In which type of solar eclipse the Sun’s center is covered by the moon, leaving its edges uncovered”. Items of this type are drawn from the Astronomy & Space — Part 2 syllabus of Pakistani competitive exams, where the fact is tested verbatim.

Almost identical eclipses occur after 18 years and 11 days. This cycle is known as Saros Cycle .

Neptune is the correct answer to “Which is the Coldest Planet”. Items of this type are drawn from the Astronomy & Space — Part 2 syllabus of Pakistani competitive exams, where the fact is tested verbatim.

The coldest region of the Earth’s atmosphere is Mesopause .

Earth is the correct answer to “Which Planet is known as Watery Planet”. Items of this type are drawn from the Astronomy & Space — Part 2 syllabus of Pakistani competitive exams, where the fact is tested verbatim.

Mars is the correct answer to “Which planet is called “red planet””. Items of this type are drawn from the Astronomy & Space — Part 2 syllabus of Pakistani competitive exams, where the fact is tested verbatim.

Heliograph is the correct answer to “Which instrument is used for viewing the sun”. Items of this type are drawn from the Astronomy & Space — Part 2 syllabus of Pakistani competitive exams, where the fact is tested verbatim.