Science MCQs

1. What is the approximate average distance from the sun to the earth?

• (A) 1600,90,000 kms
• (B) 1480,00,000 kms
• (C) 1500,00,000 kms
• (D) 1890,70,000 kms

2. The outer surface of the sun is called?

• (A) Thermosphere
• (B) lithosphere
• (C) Lonosphere
• (D) photosphere

3. Which planet has the maximum number of satellites?

• (A) Mars
• (B) mercury
• (C) Venus
• (D) Jupiter

4. What is a light year?

• (A) The year was marked by an extraordinary amount of torment of radiation
• (B) The year marked by extraordinary less amount of sunlight radiation reaching the earth due to protracted cloudy weather on earth making that year lighter than the normal
• (C) The year the sun shines more light making an extra day in February
• (D) The distance traveled by light in 01 years.

5. What are the red giants?

• (A) Stars that seem red because of their consuming a portion of their hydrogen.
• (B) The star group visibly supersized near Mars
• (C) Stars that consume some of their oxygen and therefore seem red as a result of lack of O2
• (D) Powerful communist countries.

6. What are the asteroids?

• (A) Piece of falling stars
• (B) Satellite of different planets
• (C) Very small planet rotating around the sun
• (D) Rocks found on the moon

7. What is the temperature at the middle of the sun?

• (A) 6000000 k
• (B) 10000000 k
• (C) 12000000 k
• (D) 20000000 k

8. The phase of moon are partially the result of the?

• (A) Changes in the shape of the moon
• (B) Moon's Revolution on Earth
• (C) The variation in gravity of the moon
• (D) Variation of the rotation speed of the moon

9. Constellations referred to as Zodiac are?

• (A) Imaginary region that includes the path of the planets
• (B) The Signs of the Roman God
• (C) A group of stars
• (D) None

10. The height of a geostationary satellite from the Earth's surface is approximately?

• (A) 360 km
• (B) 3600 km
• (C) 23,000 km
• (D) 360,000 km

11. What are the reasons why there is no total eclipse of the sun?

• (A) Area of the sun covered by the moon
• (B) Direction rotation around the sun
• (C) Orbit of moon around the sun
• (D) Size of earth in relation to that of moon

12. The instrument used to measure milk density?

• (A) Barometer
• (B) Hygrometer
• (C) Lactometer
• (D) None of them

13. The internal antenna of transistor set is made of?

• (A) The iron
• (B) Ferrochrome
• (C) Copper
• (D) Alnico

14. Gerontology is the study of?

• (A) Aging
• (B) Cell growth
• (C) Birds
• (D) Vegetables

15. Helium is used to breathe in deep water rather than nitrogen because

• (A) It is heavier than nitrogen
• (B) It is higher than nitrogen
• (C) It mixes less in blood than nitrogen
• (D) It helps oxygen to burn more quickly

16. In a fluorescent tube, the following components are found.

• (A) The mercury vapors
• (B) Argon and carbon dioxide
• (C) Helium and oxygen
• (D) Argon and neon

17. Aluminum common ore is?

• (A) Chromite
• (B) Cryolite
• (C) Bauxite
• (D) Monazite

18. When you enter a dark room, you can not see anything, but after a while the vision improves. This is due to the fact?

• (A) The retina of the eye comes forward
• (B) The retina of the eye moves backward
• (C) The pupil of the eye contracts
• (D) The pupil of the eye dilates

19. Radio carbon dating is used to determine age of?

• (A) Fossils
• (B) Building
• (C) Rocks
• (D) Babies

20. What is the periscope used for?

• (A) To survey the ships on the surface of the ocean once the submarine is below water
• (B) Extinguishing the fire
• (C) To measure milk purity
• (D) None of the above