Physics
Questions & Answers about Universe
1Q)The
word planet come from which greek word ?
1A)Wanderers
2Q)
What is the light year ?
2A)
The distance travelled by light in one year.
3Q)
what is the distnce travelled by a light in one year ?
3A)
6 trillion km
4Q)
What is the almost etimated number of sars in the universe ?
4A)
300 into 10 to the power of 23 or 300 sextillion stars
5Q)
What is a galaxy ?
5A)
clusters of stars ( probably 100 billion galaxies in the universe)
6Q)
What is Milky way ?
6A)
The galaxy in which sun is included ( 10 billion stars is in Milky way )
7Q)
which is the closest galaxy nerar to Milky way?
7A
Andromeda galaxy ( distance is about 2.5 million light years )
8Q)
Which is the nearest star to our universe ?
8A)
Proxima Centauri
9Q
) What is the distance between Proxima Centauri and earth ?
9A)
4 light years.
10Q)
Name the greek astronomer, who preposed that Earth is the centre of the
universe ?
10A)
Ptolemy
11Q)
What is heliocentric model of the solar system ?
11A)
sun is at the centre of the solar system
12Q)
Whose are the Astronomers behind heliocentric model of the solar system ?
12A)
Copernicus, Galileo, and Kepler
13Q)
Age of Universe ?
13A)
14 billion years
14Q)
Age of sun ?
14A)
4.6 billion years
15Q)
How many planets in solar system ?
15A)
8
16Q)
Which is the Closest planet to the sun ?
16A)
Mercury
17Q)
which planet is farthest away form sun ?
17A)
Neptune
18Q)
Which are terrestrial planets ?
18A)
Mercury, Venus, Earth and Mars is called terrestrial planets.
19Q)
Which are gas gaints ?
19A)
Jupiter, Saturn, Uranus and Neptune
20Q)
The area which a plant is just right side of the its home star is called ?
20A)
JGoldilocks zone
21Q)
Where is Hubble space telescope located and when was it launched ?
21A)
In low earth orbit lanched by NASA in 24th April 1990
22Q)
Astronomers calssified sun as --- dwarf ?
22A)
Yellow Dwarf
23Q)
What is the life cycle of sun ?
23
A) 10 billion years
24
Q) The time kaen to reach the light from sun to earth ?
24A)
8 minutes
25
Q) what are the major elements in sun ?
25A)
Hydrogen(75%) and Helium (24%)
26Q)
What is the procees taken place in sun for the energy ?
26A)
Nuclear fusion ( hydrogen converted into helium )
27
Q) Who formulated laws of planetary motionthe rules which govern the orbits of
the planet ?
27A)
Kepler
28Q)
How many laws are in Keplers planitary motion ?
28A)
3 laws
29Q)
closest point to the Sun is called ?
29A) apogee
30Q)furthest
point to the Sun is called ?
30A) perigee
31Q)
Planet Mercury is named after which god ?
31A)
Roman messenger God
32Q)
Planet Mercury is refered in India as ?
32A)
Deity Buudha
33Q)
Why temperature in Mercury varies from minus 170 degree to 430 during day time
?
33A)
Mercury has no atmosphere.
34
Q) Venus is named after which goddess
34
A) Roman goddess of love and beauty
35Q)
what is the name of Venus in Hindu astrology ?
35
A) Velli meaning clear and pure
36
Q) Which is the hotest plante in the solar system ?
36A)
Venus
37
Q) The distance form earth to sun ?
37A)
150 million kilometers.
38
Q) What is called one astronomical unit ?
38A)
The distance from Sun to Earth (150 million kilometers)
39Q)
Earth orbits the Sun, in howmany days ?
39A)
365.25 days
40
Q) Mars is named after which god ?
40A)
Roman god of war
41Q)
In Hindu astrology Mars called as ?
41A) Mangala
42Q)
India's Mars mission is called ?
42A)
MOM (Mars oribitor mission ) lanched in 5th novemeber 2013
43Q)
Jupiter is named after which god and what is known in India ?
43A)
Roman king of gods, In India Brhaspati,
the guru of Hindu gods.
44Q)
Which is the largest planet in solar system ?
44A)
Jupiter
45
Q) which is the largest moon of Jupiter ?
45A)
Ganymede ( Bugger than planet Mercury )
46Q)
Sturn named after which god ?
46A)
Roman god of agriculture
47
Q) Largest moon of Saturn ?
47A)
Titan
48Q)
Uranus is named after which god ?
48A)
Greek god of the sky
49Q)
Neptune is named after which god?
49A)
Roman god of the sea
50Q)
The time taken by Neptune to orbit the sun ?
50A)
165 Years.
51Q)
What is Aphelion ?
51A)
The furthest distance of a planet’s orbit from the Sun( about 151.93 million km
)
52Q)
What is Perihelion ?
52A
) The closest distance of a planet’s orbit from the Sun (about 149.6 million
km)
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Will Continue ....
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