100 easy general knowledge questions and answers

 100 easy general knowledge questions and answers -for competitive

Todays generation General Knowledge is most important for every student. It is very essential for those who are preparing for various Entrance, SSC, CGL, RAILWAYS,POLICE, Clerical  level job , based on NCERT,CBSE,ICSE and also helpful for kids. This site provide you a basic information about 100 easy 

100 easy general knowledge questions and answers
General knowledge questions and answers about Cosmology

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COSMOLOGY 

 Cosmology is the study about Universe, consists of millions of Galaxies. A galaxy is a contributions of millions stars held together by the forces of gravity.

 Kepler  said that the sun was the centre of the solar system and not the universe . He proved that the planets move around the sun not in circles but in ellipses and in different  speeds. In 1805,

 Hershel made a theory and clear about  the solar system much larger system of stars called galaxy.

 

Edwin Hubble in 1924 first  proved that these galaxies are flying away from each other and that the farther they are, the faster they fly.  Akash Ganga consists of over a 100 billion stars rotating us and blown up.

 Our galaxy is Milky Way Galaxy .

 Our nearest  galaxy is Andromeda.

 

Light Year means  the distance covered by  one year in vacuum at a speed of 3 x 10³ km/s.

 It is the mean distance between the earth and the sun.

 

One light year is equal to 60.000 A.U.

 

Stars are self-luminous bodies.

 

A  Stars are filled with  the Nuclear Fusion of hydrogen to form helium deep in their interiors.

 

A stars may live for billions of years.A larger star life is very shorter than a small size of star.

 

 Sirius is the Brightest star outside our Solar System also called Dog Star.

 

Proxima is the Closest star of Solar System .

 

Then come Alpha Centauri (4,3 light years away) and Barnard's Star (5.9 light years away).

 

We can seen from Earth, the most shiny objects in sky  are Sun, Moon, Venus. Jupiter, Sirius, Mars, Mercury, etc.


SOLAR SYSTEM 

Our solar system consists of sun and 8 Planets (Jupiter,Saturn,Uranus,Neptune,Earth,Venus,Mars and Mercury) , 5 Dwarf and countless fragments are called asteroids, meteors, comets and satellites of the planets .

 

THE SUN

 

It  is a stars in the milky way galaxy.

It takes 224 million years to complete one circle i.e(revolution) around the galactic circle ( it is called cosmic year),

The sun is 109 times bigger than the earth and weighs 2 x 10²⁷ tons.

 

Photosphere is glowing surface of the Sun which temperature about  5,500°C.

 

 Corona is visible during eclipses.

 

The core of the sun has the temperature about 15 million degrees Celsius.

 

Solar Wind is a stream which is a collection of protons and electrons blowing out of corona and sweeping over the solar system.

 

The energy of sun comes from the fusion of hydrogen into helium.

 

Sunlight takes 8 min, 16.6 sec to reach earth.

 

THE PLANETS  (100 easy general knowledge questions and answers for student)

 

 A  planet is a celestial body


Our  solar system has eight planets and 5 dwarf planets are Pluto, Ceres, Eris, Makemake and Haumea.

 

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

 

Jupiter, Saturn, Uranus, Neptune  are called Jovian Planets.

 

Jupiter is the biggest planet in our solar system.

 

Mercury  is the smallest planet in our solar system.

Mercury  rotation period is 58.65 days and revolution is 88 days  •

 

Fastest revolution in Solar system is Mercury.

 

 VENUS also called Earth's Twin.

 

VENUS is  popularly known as Evening star and Morning star.

 

VENUS  is seen in the east in the morning and in the west in the evening.

 

VENUS is 3rd brightest object after sun and moon.

 

 VENUS is the Closest planet to earth and has no satelites.

 

VENUS is the hottest planet in Solar System.

 

 VENUS contain 96% carbon dioxide  so that Greenhouse effect is more.

 

 

Slowest  rotation in Solar System (257 days).

 

  100 easy general knowledge questions and answers for ssc

MARS

 

 

MARS is  called as Red Planet,

 

Its revolution period is 687 days and rotation period is 24.6 hrs

 

Nix Olympia the  highest mountain is situated here , which is three times higher than Mount Everest

 

MARS has 2 satellites-Phobos and Deimos.

 

JUPITER

 

 

JUPITER  known as Lord of Heaven.

 

JUPITER is the largest planet of all planets and fifth planet from the sun.

 

A red spot  is spotted  here because of a super Huricane which is a huge storm a hundred years ago.

 

 

JUPITER has the fastest rotation time (9.8 hours) in the Solar System and  Revolution period 12 years.

 

JUPITER has 79 satellites.

 

Ganymede is the largest satellite of the Solar System.

 

 

SATURN

 

SATURN is the sixth planet from the Sun and the second largest planet in the Solar System, after Jupiter.

 

Revolution period is 29 yrs and rotation is 10.3 hrs

 

SATURN has 82 satellites .

 

TITAN is the largest satellite of the SATURN and second largest satellite of the solar system.

 

 

URANUS

 

 

 William Hershel was identified this planet in 1781 •

 

 

Revolution period is and84 yrs. Rotation is 10.8 hrs.

 

 URANUS has 27 satellites .

 

 

URANUS’s largest satellites  are Miranda, Ariel, etc.

 

 

NEPTUNE

 

Its Revolution period is165 yrs. and  rotation is 15.7 days .

 

NAPTUNE was Discovered by JG Galle of Berlin in 1846.

 

NAPTUNE  has 14 satellites .

 

 Triton and Nereid are the two major satellites.

 

 

 

PLUTO

 

PLUTO is the second largest known Dwarf Planet in the Solar System.

 

. 100 easy general knowledge questions and answers for solar system


SOLAR SYSTEM

 

Jupiter                                     Biggegest Planet

 

 Mercury                                   Nearest Planet to Sun

 

 Neptune                                   Farthest Planet from Sun

 

Mercury                                   Smallest Planet

 

Venus                                      Nearest Planet to Earth

 

 Venus                                       Brightest Planet

 Sirius                                       Brightest star after Sun

  Saturn                                      Planet with maximum satellites

  Neptune                                    Coldest Planet

 

 Venus                                       Hottest Planet

 

 Jupiter                                       Heaviest Planet

 

 Mars                                           Red Planet

 Gannymede                                Biggest Satellite

 Deimos                                       Smallest Satellite

 Earth                                           Blue Planet

Venus                                           Morning/Evening Star

 Venus                                            Earth's Twin

 

Uranus                                          Green Planet

 

  Jupiter                                         Planet with a big red spot

 

Jupiter                                           Lord of the Heavens

 

Mercury                                        Greatest Diurnal Temperature

 

 MOON

 

The Moon is the only natural satellite of the Earth, and the fifth largest satellite in the Solar System.

 

 Moon is the second densest satellite after lo, a satellite of Jupiter.

 

Circumference is 11,000 km. Diameter is 3475 km.

 

The maximum distance  of the moon from the earth is 406,000 km and the minimum distance  is 364,000 km. The average distance is 3,82,200 km.

 The bright parts are the mountains and highlands.

 Moonlight takes 1.3 sec to reach earth.

Neil Armstrong and Buzz Aldrin reached moon on July 20, 1969  and set the foot on July 21,1969 .

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