Science - Stars and the Solar System
Exam Duration: 45 Mins Total Questions : 30
Which of the following physical quantities has light year as its unit?
- (a)
Time
- (b)
Intensity of light
- (c)
Illumination
- (d)
Distance
Identify the closest star to our solar system.
- (a)
Proxima Centauri
- (b)
Sirius
- (c)
Swati
- (d)
Ashwini
What are groups of stars which seem to form a pattern called?
- (a)
Nebulae
- (b)
Galaxies
- (c)
Asteroid
- (d)
Constellations
What is the approximate height of a geostationary satellite?
- (a)
6,400 km
- (b)
12,800 km
- (c)
7,200 km
- (d)
36,000 km
How do stars appear to move?
- (a)
From east to west
- (b)
From west to east
- (c)
From north to south
- (d)
From south to north
To which of the following category does Orion belong?
- (a)
Star
- (b)
Planet
- (c)
Galaxy
- (d)
Constellation
Which planet has "the great red spot"?
- (a)
Mars
- (b)
Venus
- (c)
Jupiter
- (d)
Mercury
Where is a spy satellite deployed?
- (a)
Low-earth orbit
- (b)
Geostationary orbit
- (c)
Polar orbit
- (d)
Both (A) and (B)
What is Ceres?
- (a)
A satellite of Mars
- (b)
A satellite of Jupiter
- (c)
An asteroid
- (d)
A meteorite that fell over Siberia in 1908
Which of the following is the brightest non-star visible to the human eye?
- (a)
Moon
- (b)
Venus
- (c)
Mars
- (d)
Jupiter
Which is the largest, natural satellite in the solar system?
- (a)
The moon
- (b)
lo
- (c)
Eros
- (d)
Ganymede
Which of the following planets can be seen with naked eyes?
- (a)
Mercury, Venus, Uranus, Jupiter
- (b)
Mars, Jupiter, Uranus, Neptune
- (c)
Mercury, Venus, Uranus, Pluto
- (d)
Mercury, Mars, Venus, Jupiter
In which orbits do satellites revolve?
- (a)
Circular and hyperbolic orbits
- (b)
Elliptical and parabolic orbits
- (c)
Elliptical and circular orbits
- (d)
Only in elliptical orbits
Identify the biggest constellation
- (a)
Sirius
- (b)
Hydra
- (c)
Andromeda
- (d)
Ursa minor
Of which element is ozone made?
- (a)
Oxygen
- (b)
Nitrogen
- (c)
Carbon
- (d)
Carbon and oxygen
Who proved that the planets revolve around the sun in elliptical orbits?
- (a)
Isaac Newton
- (b)
Albert Einstein
- (c)
Johannes Kepler
- (d)
Galilei Galileo
Which of the following is equal to one cosmic year?
- (a)
365 days
- (b)
24 days
- (c)
2.25 x 106 days
- (d)
225 x 106 years
Between 1979 and 1999, which of these planets was the farthest from the sun?
- (a)
Jupiter
- (b)
Neptune
- (c)
Uranus
- (d)
Mercury
Which is the nearest galaxy to our galaxy
- (a)
Andromeda
- (b)
X 31
- (c)
Large Magellanic cloud
- (d)
Small Magellanic cloud
Which of the following planets takes the maximum time to rotate around itself?
- (a)
Mercury
- (b)
Pluto
- (c)
Venus
- (d)
Neptune
What is Halley?
- (a)
A comet
- (b)
An asteroid
- (c)
A satellite of Jupiter
- (d)
A meteorite
When was the sun formed?
- (a)
15 billion years ago
- (b)
4.5 billion years ago
- (c)
10 billion years ago
- (d)
11.5 billion years ago
What are stars mainly made up of?
- (a)
Oxygen and hydrogen
- (b)
Oxygen and nitrogen
- (c)
Hydrogen and helium
- (d)
Water and helium
Which of the following statements is correct about galaxies?
- (a)
They move towards each other
- (b)
They move away from each other.
- (c)
They do not move at all
- (d)
They have fixed number of stars
What makes the live telecast of a cricket match possible?
- (a)
Geostationary satellite
- (b)
Polar satellite
- (c)
Low-earth orbiting satellite
- (d)
Sun-synchronous satellite
Where do you find the "sea of tranquility"?
- (a)
On the surface of moon
- (b)
On the surface of earth
- (c)
On the surface of Mercury
- (d)
On the surface of Mars
What is a cosmic year?
- (a)
The time taken by the earth to revolve around the sun.
- (b)
The time taken by the sun to revolve around itself
- (c)
The time taken by the earth to revolve around itself
- (d)
The time taken by the sun to revolve around the centre of the galaxy, the Milky Way.
Mercury is closer to the sun than Venus. But Venus is hotter than Mercury. Give reason.
- (a)
Mercury has no atmosphere and Venus has a thick atmosphere which can retain the heat
- (b)
Mercury is mostly made up of sedimentary rocks while Venus contains igneous rocks.
- (c)
The sun absorbs the heat of the Mercury as it is closer to the sun.
- (d)
All of the above
What is the closely packed part of the comet which contains solid particles, stones and frozen water called?
- (a)
Coma
- (b)
Nucleus
- (c)
Tail
- (d)
Orbit
Identify the fastest planet of the solar system.
- (a)
Mercury
- (b)
Uranus
- (c)
jupiter
- (d)
Neptune