Stars and The Solar System Worksheet-3

Stars and The Solar System Worksheet-3

1. The orbits of which two planets intersect with each other?

(a) Mercury and Venus               (b) Mars and Jupiter

(c) Uranus and Neptune             (d) Neptune and Pluto

2. Name the brightest non-star visible to human eye.

(a) Moon            (b) Venus           (c) Mars             (d) Jupiter

3. Brightest planet visible to naked eye is:

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

4. The only moon in the solar system with ' active volcanoes is:

(a) Moon            (b) Io                  (c) Titan             (d) Ganymede

5. The largest satellite in the solar system is:

(a) Moon            (b) Io                  (c) Eros              (d) Ganymede

6. The planet also known as red planet is:

(a) Mars             (b) Venus           (c) Earth            (d) Jupiter

7. Geocentric theory, proposed by Ptolemy, states that:

(a) Sun is the centre of the universe

(b) Earth is the centre of the universe

(c) Moon is the centre of the universe

(d) There is no centre for the universe

8. Heliocentric theory was proposed by:

(a) Ptolemy       (b) Copernicus (c) Newton        (d) Galileo

9. Other than the earth, which other planet has the thick atmospheric layer to absorb harmful ultraviolet rays?

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

10. The planet also known as "morning star'' is:

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

Answer Key:

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