Available Answers

1. 1.

   Multiple choice questions.

   1. Which of the following is the only natural satellite of the earth?
      1. Sun
      2. Moon
      3. Jupiter
      4. Venus
   2. Apollo 11 was launched from the Kennedy space centre at:
      1. Odisha
      2. Sri Harikota
      3. Florida
      4. All of these
   3. The first satellite launched from the earth was:
      1. Sputnik-1
      2. Apollo 11
      3. Moon
      4. None of these
   4. As the moon moves along its orbit, a small portion of the side facing us gets sunlight is called the:
      1. new moon
      2. gibbous moon
      3. crescent moon
      4. full moon
   5. When the earth comes between the sun and the moon, it blocks the sunlight from reaching the moon causing:
      1. solar eclipse
      2. lunar eclipse
      3. tides
      4. all of these
2. 2.

   Fill in the blanks.

   craters, 28 days, opaque, Aryabhatta, solar

   1. The moon completes one revolution around the earth in nearly ___________.
   2. ___________ are deep holes formed by meteorites hitting the surface of the moon.
   3. A ___________ eclipse occurs only on a new moon day.
   4. ___________ was the first Indian satellite launched in 1975.
   5. A shadow is formed when the path of light is blocked by an ___________ object.
3. 3.

   Explain how tides occurs?

4. 4.

   Why can life not exist on the moon?

5. 5.

   Write a short note on shadow formation.

6. 6.

   What are the uses of artificial satellites?