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Stars and the Solar System Test - 39

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Stars and the Solar System Test - 39
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  • Question 1
    1 / -0
    What does the Big Bang Theory say?
    Solution
    We know that the universe consists of stars and their respective planetary systems. 
    As per the Big Bang Theory, at the beginning of the universe, there was a huge mass of matter. This mass exploded and got broken up into millions of fragments. These fragments became stars. Some parts of these stars got detached from them and cooled down to form planets.
    This is how the Universe was created. 
  • Question 2
    1 / -0
    What would be the phase called if Moon is seen in the sky as shown in the figure?

    Solution
    The phase of the moon as shown in the above figure is First Quarter . For first quarter only half moon is visible.
  • Question 3
    1 / -0
    The moon takes _____ days to complete one spin.
    Solution
    The moon orbits the Earth once every $$27.322$$ days. It also takes approximately $$27$$ days for the moon to rotate once on its axis. As a result, the moon does not seem to be spinning but appears to observers from Earth to be keeping almost perfectly still.
  • Question 4
    1 / -0
    Which is the first phase of the moon cycle?
    Solution
    New Moon is a phase of the moon cycle in which it is not visible at all.
    On the next day, a small part of the moon is visible. Thereafter, the moon appears to be expanding day by day.
    On a special day, the moon appears completely full and visible. This is known as Full Moon. The period from New moon to Full moon is considered as the 1st half cycle.
    After this the moon appears to be diminishing day by day and one day, it is completely invisible. That is, a New moon day arrives. One complete cycle is over, and a new cycle begins on the New Moon day.
    Hence the New moon (which is invisible) is considered as the first phase of the moon cycle.
  • Question 5
    1 / -0
    Which of the following describes ecliptic orbit?
    Solution
    Path travel by the earth around the sun is elliptical path and sun is located at the one foci.
  • Question 6
    1 / -0
    Heat waves are trapped to the maximum extent on which planet?
    Solution
    Due to the presence of Carbon dioxide in large amounts on Venus, carbon dioxide, a greenhouse gas, traps a large amount of heat.
  • Question 7
    1 / -0
    Planets are divided in to two groups based on their characteristic.
    $$Group - 1$$$$Group - 2$$
    Structure of planets resemble to earthStructure of planets resembles Jupiter
    They have fewer natural satellitesThey have large number of natural satellites
    They have thin atmosphereRings are seen around planets
    Which of the following in included in group $$-2$$?
  • Question 8
    1 / -0
    How many days would pass from a New Moon phase to a Full Moon phase?
    Solution
    The day on which the whole disc of the moon is visible is known as the full moon day. Thereafter, every night the size of the bright part of the moon appears to become thinner and thinner. On the fifteenth day, the moon is not visible. This day is known as the new moon day. The next day, only a small portion of the moon appears in the sky. This is known as the crescent moon. Then again the moon grows larger every day. On the fifteenth day once again we get a full view of the moon.
  • Question 9
    1 / -0
    In which of the following phases of Moon we can see the entire half of the moon surface that is lit?
    Solution
    This happens when Earth is between the moon and Sun and this phase is known as full moon.
  • Question 10
    1 / -0
    During the Full Moon phase, what is the configuration of Moon, Earth, and Sun?
    Solution
    During the Full Moon phase, Earth is between the Sun and the moon.

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