Physics science (GS 103-3)

1. When visibility is good and there are no meteor show, it is possible to see about 5 to 10 meteors per Week

2. The planet having a period of rotation nearest the earth is Venus

3. Comet tails are longest near the sun

(Point away from their direction of motion)

(There are cases when a comet tail points ahead of its direction of motion)

4. Relative to the oldest rocks that have been found on the moon, oldest rocks found on the earth are

about the same age

5. Flowering plants first appeared in the Mesozoic era

6. Relative to the thickness of the earth’s crust under the oceans, under the continents the crust is thinner

7. Evidence suggests that large scale biological extinctions may have been caused by which one or more of the following?

both A and C

8. A planet with two satellites is Mars

9. The least dense of the following planets is Saturn

10. A full moon is visible all night

11. Gondwana did not contain North America

12. The largest know asteroid is about as far across Texas

13. Pangaea split into Laurasia and Gondwana during Precambrian time

(The Cenozoic era)

(it split 175 My ago, which is in Jurassic, Mesozoic, this time period does not belong not to Precambrian nor to Cenozoic – more correct is to say it split into Precambrian (-4500,-500 My ago) than into Cenozoic (-65 My, 0 My ago). All the major splits have been before Cenozoic).

14. The surface of mars does not contain active volcanoes

15. All known dwarf planets

Both A, B and C

16. If the moon were smaller than it is, total eclipses of the moon would never occur

17. Planetary rings consist of small chunks of rock and ice

18. In general, ancient forms of life are simpler than those of today

19. Fossils are least likely to be found in granite

20. The surface of jupiter’s satellite Europa may be covered by a layer of water ice floating on liquid water.