Chapter 17 Stars and the Solar System mcqs & important questions science | class 8th
MCQ Questions for Class 8 Science: Ch 17 Stars and the Solar System
1. Which planet has the largest number of satellites?
(a) Jupiter
(b) Saturn
(c) Mercury
(d) Mars
► (b) Saturn
2. The Halley’s Comet is seen after every
(a) 76 months
(b) 76 years
(c) 56 months
(d) 56 years
► (b) 76 years
3. Which is the largest, natural satellite in the solar system?
(a) The moon
(b) lo
(c) Eros
(d) Ganymede
► (d) Ganymede
4. White is the time-period of revolution of Halley
(a) 25 years
(b) 80 years
(c) 56 years
(d) 76 years
► (d) 76 years
5. Farthest planet of the solar system is:
(a) Neptune
(b) Jupiter
(c) Mercury
(d) Earth
► (a) Neptune
6. Sky is not clear in cities due to
(a) Dust and smoke
(b) More population
(c) Bright light
(d) Larger area
► (a) Dust and smoke
7. The celestial body nearest to the earth is
(a) Venus
(b) The Sun
(c) Proxima
(d) The moon
► (d) The moon
8. Of which element is ozone made?
(a) Oxygen
(b) Nitrogen
(c) Carbon
(d) Carbon and oxygen
► (a) Oxygen
9. Neptune have very low temperature due to
(a) Far distance from sun
(b) Presence of oxygen
(c) Huge amount of ice
(d) Glacier on its surface
► (a) Far distance from sun
10. Star appear small because
(a) They are very far
(b) They have dim light
(c) They are smaller than moon
(d) They reflect the Sun
► (a) They are very far
11. Which of the following is the brightest non-star visible to the human eye?
(a) Moon
(b) Venus
(c) Mars
(d) Jupiter
► (a) Moon
12. ISRO stands for
(a) Indian Science Research Organization
(b) International Science Research Organization
(c) Indian Space Research Organization
(d) Inter State Research Organization
► (c) Indian Space Research Organization
13. The path of planet around the sun is called its
(a) Orbit
(b) Spin
(c) Rotation
(d) Revolution
► (a) Orbit
14. Celestial bodies that emit heat and light in one year are called
(a) Asteroids
(b) Planets
(c) Moons
(d) Stars
► (d) Stars
15. The various shapes of bright part of moon is called
(a) Parts of moon
(b) Ring of moon
(c) Cover of moon
(d) Phases of moon
► (d) Phases of moon
16. A planet which appears yellowish:
(a) Saturn
(b) Mars
(c) Uranus
(d) Venus
► (d) Venus
17. Where is a spy satellite deployed?
(a) Low-earth orbit
(b) Geostationary orbit
(c) Polar orbit
(d) Both (a) and (b)
► (a) Low-earth orbit
18. A piece of rock which burns as it falls through the earth atmosphere is
(a) Meteoroids
(b) Asteroids
(c) Meteorite
(d) Meteor
► (c) Meteorite
19. Millions of stars together form
(a) Solar system
(b) Galaxy
(c) Constellation
(d) Comet
► (b) Galaxy
20. Identify the closest star to our solar system.
(a) Proxima centauri
(b) Sirius
(c) Swati
(d) Ashwini
► (a) Proxima centauri
21. Which of the following is not a celestial body?
(a) Satellite
(b) Star
(c) Moon
(d) Planets
► (a) Satellite
22. The gap between the orbit of Mars and Jupiter is called
(a) Asteroid
(b) Comets
(c) Meteor
(d) Meteorite
► (a) Asteroid
23. To which of the following category does Orion belong?
(a) Star
(b) Planet
(c) Galaxy
(d) Constellation
► (d) Constellation
24. What kind of a planet is Jupiter?
(a) Terrestrial planet
(b) Gas planet
(c) Asteroid
(d) Hottest planet
► (b) Gas planet
25. The brightest object in clear night sky is
(a) Venus
(b) Sun
(c) Moon
(d) Star
► (c) Moon
Class 8 Science Chapter 17 Extra Questions and Answers Stars and the Solar System
Extra Questions for Class 8 Science Chapter 17 Friction with Answers Solutions
Stars and the Solar System Class 8 Extra Questions Very Short Answer Type
Question 1.
Name the planet nearest to the Sun.
Answer:
Mercury
Question 2.
What is the speed of light?
Answer:
300000 km per second (3 x 108 m/s).
Question 3.
Which is the brightest planet in the night sky?
Answer:
Venus
Question 4.
Name the star which is nearest to our solar system.
Answer:
Alpha centuari
Question 5.
Which planets do not have satellite of their own?
Answer:
Venus and Mercury
Question 6.
How many planets are there in our solar system?
Answer:
Eight
Question 7.
Which planet is called Red planet?
Answer:
Mars
Question 8.
Why Earth appears blue from space?
Answer:
Due to presence of water Earth appears blue from space.
Question 9.
What is the other name of Orion?
Answer:
Hunter
Question 10.
Which planet is least dense among all?
Answer:
Saturn
Question 11.
Do stars emit light only during night time?
Answer:
No, they emit light all the time.
Question 12.
Name the unit which is used to measure astronomical distances?
Answer:
Light year
Question 13.
What is asteroid?
Answer:
Asteroid is a small rocky body orbiting the sun or found between the orbit of Mars or Jupiter.
Question 14.
Which is the other name of constellation Great Bear?
Answer:
Saptarishi
Question 15.
What is Sun?
Answer:
Sun is a star.