1) Which planet takes the largest time to go once around the Sun?
(A) Uranus
(B) Jupiter
(C) Neptune
(D) Venus

2) A 'black hole' is a body in space which does not allow any radiation to come out. This property is due to its ___
(A) Very small size
(B) Very large size
(C) Very high density
(D) Very low density

3) Which of the following planets is called evening star?
(A) Mars
(B) Mercury
(C) Venus
(D) Jupiter

4) What is the rank of the earth in the solar system in terms of size?
(A) Third
(B) Fourth
(C) Fifth
(D) Sixth

5) The planet with the shortest rotation time around its axis is
(A) Mercury
(B) Jupiter
(C) Earth
(D) Pluto

6) The planets are kept in motion in their respective orbits by the ___
(A) Rotation of the sun on its axis
(B) Gravitation and centrifugal forces
(C) Great size and spherical shape
(D) Rotation and the density of the planets

7) The theory that refers to an explosion about 10 to 15 billion years ago which most astronomers believe to be the origin of the Universe is called
(A) The Red Shift Theory
(B) Relativity Theory
(C) Big Bang Theory
(D) Titanic Theory

8) Operation Pathfinder was a mission to
(A) Sun
(B) Moon
(C) Venus
(D) Mars

9) Black holes are stellar objects which
(A) Emit black body radiation
(B) Have weak gravitational field
(C) Have intense gravitational field
(D) Have intense magnetic field

10) Name two planets lying between the sun and the earth
(A) Mercury and Mars
(B) Venus and Mars
(C) Mercury and Venus
(D) Jupiter and Saturn

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