Stars and The Solar System Worksheet-6

Stars and The Solar System Worksheet-6

1. Halley is the name of a/an:

(a) Comet                                       (b) Asteroid

(c) satellite of Jupiter                  (d) Meteorite

2. The tail of a comet usually extends to:

(a) 10 kilometres                          (b) 2 light years

(c) 25 million kilometres            (d) 1.5 billion kilometers

3. Sphere of microscopic dust surrounding the nucleus of a comet is called:

(a) Coma           (b) Tail               (c) Tail               (d) Nucleon

4. The height of low-earth satellites ranges between:

(a) 300-800 km                           (b) 20 -80 km

(c) 36,000 km                               (d) 200 - 7200 km

5. GPS means:

(a) Global Positioning System

(b) Geometrical Processing Satellite

(c) Gestalt Psychological Synchro­nisation

(d) none of these

6. GSLV means:

(a) Geostationary Satellite Launch Vehicle

(b) German Satellite Launching Vehicle

(c) Global Satellite Locus Verification System

(d) none of these

7. In the sun:

(a) hydrogen is converted to helium

(b) helium is converted to hydrogen

(c) hydrogen is converted to uranium

(d) all of these

8. Solar system was formed:

(a) 15 billion years ago                (b) 4.5 billion years ago

(c) 10 billion years ago                (d) 11.5 billion years ago

9. Stars are mainly made up of:

(a) oxygen and hydrogen            (b) oxygen and nitrogen

(c) hydrogen and helium            (d) water and helium

10. Galaxies:

(a) move toward each other       (b) move away from each other

(c) do not move at all                   (d) none of these

Answer Key:

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