1. Morning star is the name given to (1)
(a) pole star
(b) star Sirius
(c) planet Jupiter
(d) planet Venus
2. Which of the following figures depicts the position of pole star correctly? (1)
3. Sun appears to move from east to west around the earth. This means that earth rotates from (1)
(a) east to west
(b) west to east
(c) north to south
(d) west to north
4. An astronaut standing on the surface of the moon throws a ball upwards. The ball would (1)
(a) directly fall down from the point it is released.
(b) hang in space.
(c) go up and then come back to the surface of the moon.
(d) keep going up never to come back.
5. Suppose a new planet is discovered between Uranus and Neptune. Its time period would be (1)
(a) less than that of Neptune.
(b) more than that of Neptune.
(c) equal to that of Neptune or Uranus.
(d) less than that of Uranus.
6. The change in seasons on the earth occurs because (1)
(a) the distance between the earth and the sun is not constant.
(b) the axis of rotation of the earth is parallel to the plane of its orbit.
(c) the axis of rotation of the earth is perpendicular to the plane of its orbit.
(d) the axis of rotation of the earth is tilted with respect to the plane of its orbit.
7. The first of a month is the new moon day. On fifteenth of the same month, which of the following figures would represent the phase of the moon? (1)
8. Do stars emit light only during night? (1)
9. Paheli and Boojho observe a bright object in the night sky which was not twinkling. Paheli says, it is a star and Boojho says it is a planet. Who is correct? (1)
10. State whether the following statements are ‘True’ or ‘False’. (3)
(a) The planet nearest to us is Jupiter.
(b) All the stars are at the same distance from us.
(c) The planets do not emit light of their own.
(d) The planets keep changing their position with respect to stars.
(e) The planet Venus appears in the eastern sky before sunrise.
(f) The plane in which the earth revolves around the sun is called the equatorial plane of earth.
11. Explain with a diagram of how you can locate pole star with the help of the constellation Great Bear (Ursa Major). (3)
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