13 December 2013

Stars and The Solar System Oral questions CCE FA Test 8th class

8th (VIII) Stars and The Solar System (Physics)
Oral questions for Formative and Summative Assessments
Q.1.Name the planet appears I the northern sky before sun rise?
Ans: Venus brightest of all planets
Q.2. Name the planet which has 28 moons?
Ans: Jupiter manly consist of hydrogen and helium gases
Q.3. In which direction stars move except Polar star?
Ans: When seen from earth stars appears to move from east to west.
Q.4. Why pole star appears stationary?
Ans: As it lies on the imaginary axis of the rotation of the earth.
Q.5.Which two planets have asteroids between them?
Ans: asteroids are the rocks pieces that revolve around the sun between the orbit of Mars and Jupiter.
Q.6. Which comet visit the earth after 76 year?
Ans: Halley’s comet. Heavenly bodies that revolve around the sun and appears as bright as glowing ball with a long tail is called comet.
Q.7.What happen to meteors when enters the earth’s atmosphere?
Ans: meteors when enters the earth’s atmosphere starts glowing and are seen as a bright steak of light fleshing momentarily across the sky.
Q.8.What is the high tog geostationary satellite from the earth surface?
Ans: 36000km and used for satellite communicacation.
Q.9. What does term INSAT mean?
Ans: Indian National Satellite.
Q.10.Name the first Indian satellite launched success fully.
Ans : Aryabhata on 19 april,1975
Q.11. Some stars are bright and some are dim; some stars look white while some may look blue and some red. why?
Answer: Stars differ in apparent brightness for two reasons; one is that they are at different distances and the other is that they differ in their intrinsic (actual) brightness
Fill in the blanks
1. The distance of the sun from the earth is nearly ----------
Answer: 1.5 x 108 km
2. Light takes about  ----------- to travel from the sun to the earth
Answer: 8 minutes
3. The sun rotates from west to east with a period of about  ---------
26 days
4.The visible disc of the sun is called  ------------
Answer: photosphere
5. The layer just above the photosphere is called the --------------
Answer: chromosphere
6. The region beyond  chromospheres  is called  -------------
Answer: corona
7. The total energy emitted by a star in one second is called its  ----------
Answer: luminosity
8.  -------------- is the study of the universe. It deals especially with the search for suitable theories to understand the observed universe, its origin and its future.
Answer: Cosmology

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