Universe Flashcards

1
Q

Polar Star is always seen at one point in the sky whereas other stars are not; this is because

A

Pole star lies in the axis of spin of the earth

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2
Q

The outermost layer of the sun is called

A

Corona

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3
Q

Stars which appears blue are

A

Hotter than the Sun

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4
Q

The light coming from stars gives the idea of their

A

Temperature

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5
Q

The period of one revolution of Sun around the centre of galaxy is called

A

Cosmic Year

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6
Q

Super Nova is

A

A Dying Star

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7
Q

The shape of our milky way galaxy is

A

Spiral

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8
Q

Triton is a satellite of

A

Neptune

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9
Q

____ planet is reff as the Morning and Evening Star

A

Venus

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10
Q

Brightest comet known to men so far

A

Kohoutek

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11
Q

The energy generation in stars is

A

Mainly due to the fusion off light nuclei

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12
Q

Mercury is ___ and____

A

Largest and nearest to the sun

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13
Q

___ and ___ have no moons

A

Mecury and Venus

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14
Q

Densest planet of solar system

A

Earth

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15
Q

Phases of the moon are caused by

A

Rotation of the earth

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16
Q

Asteriods?

A
  • Small Group of rock pieces revolving round the sun b/w the orbit of Mars and Jupiter
17
Q

In which year did man first step out on the moon

A

1969

18
Q

When did the space age begin with the launch of the Russian Sputnik?

A

Oct 4, 1957

19
Q

___ planet contains the great red spot

A

Jupiter

20
Q

‘Blue Dwarf’ and ‘Red Giants’ refer to

A

Young stars and old stars

21
Q

___ Layers are present in the atmosphere of the sun

A

03

22
Q

US launched its first space station in

A

1973

23
Q

USSR launched its first space station in

A

1986 (mir)

24
Q

Hubble is a

A

Space telescope

25
Q

Hubble telescope was launched into space on ____ with the help of ____

A

April 24, 1980

Discovery (Space Shuttle)

26
Q

On 20th July, two American Scientist landed on

A

Moon of earth

27
Q

____ spacecraft enabled man to step on the moon first

A

Apollo XI

28
Q

Biggest planet is

A

Jupiter

29
Q

___ Planet revolves slowly around the sun

A

Neptune

30
Q

Least dense planet

A

Saturn

31
Q

Uranus revolves around the sun in

A

84 years

32
Q

___ planet revolves around sun in clockwise direction from East to West

A

Uranus

33
Q

The earth revolves around the sun at a speed of a

A

29km/ sec

34
Q

_____ was the first to measure the distance arount the earth

A

Eratosthenes

35
Q

Circumference of earth is

A

40,000 km

36
Q

The earth is more closer to sun in

A

June

37
Q

The planet with shortest day is

A

Jupiter