Stars and The Solar System Worksheet-8

Stars and The Solar System Worksheet-8

1. The solar family consists of

(a) The sun and the nine planets

(b) The sun, the planets and their satellites

(c) The sun, the planets and their satellites and other objects like asteroids, comets, meteors, etc.

(d) Sun only.

2. The tail of a comet points

(a) Towards the sun                     (b) Away from the sun

(c) In arbitrary direction            (d) Away from the earth

3. The tail of a the comet points away from the sun due to

(a) Centrifugal force

(b) Electrical repulsion

(c) Attraction of comet due to other planets

(d) Radiation pressure

4. The smallest planet of the solar system is

(a) Saturn          (b) Venus           (c) Mars             (d) Mercury

5. A galaxy is

(a) A group of stars                      (b) A group of planets

(c) A group of comets                  (d) None of these

6. The unit for measuring astronomical distances is

(a) Light year    (b) Kilometer    (c) Meter           (d) Fermi

7. Milky way is

(a) A planet of our system

(b) A sun

(c) One of the solar systems

(d) One of the enormous galaxies of universe

8. A star which appears blue will be

(a) As hot as Sun                           (b) Cooler than Sun

(c) Very cold indeed                     (d) Much hotter than Sun

9. To an astronaut, the outer space appears

(a) Dark blue    (b) White           (c) Black            (d) Dark red

10. Asteroids are

(a) Small broken pieces of planets

(b) Shooting stars

(c) Found in a belt between earth, and Venus

(d) None of these

Answer Key:

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