Stars and The Solar System Worksheet-1

Stars and The Solar System Worksheet-1

1. Light year is a unit of:

(a) Time                                         (b) Intensity of light

(c) Luminance                              (d) Distance

2. The speed of light in vacuum is:

(a) 330 m/s                                   (b) 300,000 m/s

(c) 300,000 km/s                        (d) 1759 m/s

3. Stars produce energy by:

(a) Burning coal

(b) Burning petroleum

(c) Nuclear reactions

(d) Both Burning coal and Burning petroleum

4. Name the closest star to our solar system other than the sun.

(a) Proxima centauri                   (b) Sirius

(c) Swati                                         (d) Ashwini

5. A group of stars which seem to form a pattern is called:

(a) Nebula         (b) Galaxy         (c) Asteroid       (d) Constellation

6. A meteoroid that falls on the earth is called:

(a) Asteroid       (b) Comet          (c) Meteor         (d) Meteorite

7. Which of the following has a highly elongated elliptical orbit?

(a) Asteroid       (b) Meteor         (c) Comet          (d) Meteorite

8. The approximate height of a geostationary satellite is:

(a) 6400 km     (b) 12,800 km  (c) 7200 km      (d) 36,000 km

9. The first Indian satellite is:

(a) INSAT          (b) Aryabhatta (c) Bhaskara     (d) APPLE

10. Expand ISS:

(a) International Space Station

(b) International Space Society

(c) Indian Space Station

(d) Internet Society for Semantics

Answer Key:

(1)-(d); (2)-(c); (3)-(c); (4)-(a); (5)-(d); (6)-(d); (7)-(c); (8)-(d); (9)-(b); (10)-(a)