Stars and the Solar System Part 2: MCQs (Q26–Q50)
🌌 Stars and the Solar System – MCQs for Class 8 Science
Part 2: Q26–Q50
Q26. The first man-made satellite of the world was:
A) Aryabhata
B) Sputnik-1
C) Apollo-11
D) Voyager-1
✅ Correct Answer: B) Sputnik-1
Explanation:
- B) ✔ Sputnik-1 was launched by the USSR in 1957.
- A) Aryabhata was India’s first satellite.
- C) Apollo-11 carried humans to the Moon.
- D) Voyager-1 is an interstellar probe.
Q27. The natural satellite of Mars is:
A) Titan
B) Europa
C) Phobos
D) Ganymede
✅ Correct Answer: C) Phobos
Explanation:
- C) ✔ Mars has two moons – Phobos and Deimos.
Q28. The brightest star in the night sky is:
A) Sirius
B) Polaris
C) Betelgeuse
D) Rigel
✅ Correct Answer: A) Sirius
Explanation:
- A) ✔ Sirius (Dog Star) is the brightest star visible from Earth.
Q29. The dwarf planet is:
A) Earth
B) Neptune
C) Pluto
D) Saturn
✅ Correct Answer: C) Pluto
Explanation:
- C) ✔ Pluto was reclassified as a dwarf planet in 2006.
Q30. Which planet takes the shortest time to revolve around the Sun?
A) Venus
B) Mercury
C) Earth
D) Mars
✅ Correct Answer: B) Mercury
Explanation:
- B) ✔ Mercury’s revolution period = 88 days.
Q31. Which planet has the longest year?
A) Neptune
B) Saturn
C) Uranus
D) Jupiter
✅ Correct Answer: A) Neptune
Explanation:
- A) ✔ Neptune takes 165 Earth years to orbit the Sun.
Q32. The planet which has a day longer than its year is:
A) Venus
B) Mercury
C) Jupiter
D) Saturn
✅ Correct Answer: A) Venus
Explanation:
- A) ✔ Venus rotates very slowly (1 day = 243 Earth days) but revolves in 225 days.
Q33. The only planet that rotates from east to west is:
A) Mars
B) Earth
C) Venus
D) Jupiter
✅ Correct Answer: C) Venus
Explanation:
- C) ✔ Venus has retrograde (opposite) rotation.
Q34. The part of the Sun visible to us is:
A) Corona
B) Chromosphere
C) Photosphere
D) Core
✅ Correct Answer: C) Photosphere
Explanation:
- C) ✔ Photosphere is the bright, visible surface of the Sun.
Q35. Which celestial body shows phases like the Moon?
A) Venus
B) Mars
C) Saturn
D) Jupiter
✅ Correct Answer: A) Venus
Explanation:
- A) ✔ Venus exhibits phases when viewed from Earth due to its orbit inside Earth’s orbit.
Q36. Which planet is known as the “Giant Planet”?
A) Saturn
B) Jupiter
C) Neptune
D) Uranus
✅ Correct Answer: B) Jupiter
Explanation:
- B) ✔ Jupiter is the largest planet, often called a giant planet.
Q37. The star that indicates the north direction is:
A) Sirius
B) Betelgeuse
C) Polaris
D) Rigel
✅ Correct Answer: C) Polaris
Explanation:
- C) ✔ Also called the Pole Star, useful for navigation.
Q38. Which celestial body has the Great Red Spot?
A) Jupiter
B) Mars
C) Saturn
D) Neptune
✅ Correct Answer: A) Jupiter
Explanation:
- A) ✔ The Great Red Spot is a massive storm on Jupiter.
Q39. The planet with the strongest winds in the solar system is:
A) Earth
B) Jupiter
C) Neptune
D) Venus
✅ Correct Answer: C) Neptune
Explanation:
- C) ✔ Winds on Neptune reach up to 2,000 km/h.
Q40. The shape of the Milky Way Galaxy is:
A) Spiral
B) Circular
C) Elliptical
D) Irregular
✅ Correct Answer: A) Spiral
Explanation:
- A) ✔ The Milky Way is a barred spiral galaxy.
Q41. The first human to step on the Moon was:
A) Yuri Gagarin
B) Neil Armstrong
C) Rakesh Sharma
D) Edwin Aldrin
✅ Correct Answer: B) Neil Armstrong
Explanation:
- B) ✔ On July 20, 1969, Neil Armstrong was the first to step on the Moon.
Q42. The first Indian astronaut in space was:
A) Kalpana Chawla
B) Sunita Williams
C) Rakesh Sharma
D) Aryabhata
✅ Correct Answer: C) Rakesh Sharma
Explanation:
- C) ✔ Rakesh Sharma flew in 1984 on Soyuz T-11.
Q43. Which planet is called the “Evening Star”?
A) Mars
B) Mercury
C) Venus
D) Jupiter
✅ Correct Answer: C) Venus
Explanation:
- C) ✔ Venus appears just after sunset or before sunrise.
Q44. The planet with the most satellites is:
A) Jupiter
B) Saturn
C) Uranus
D) Neptune
✅ Correct Answer: B) Saturn
Explanation:
- B) ✔ As of now, Saturn has the largest number of moons discovered.
Q45. The Moon takes how many days to complete one revolution around Earth?
A) 24 hours
B) 30 days
C) 27.3 days
D) 365 days
✅ Correct Answer: C) 27.3 days
Explanation:
- C) ✔ One revolution = 27.3 days, called a sidereal month.
Q46. Which planet has the fastest rotation?
A) Jupiter
B) Saturn
C) Earth
D) Neptune
✅ Correct Answer: A) Jupiter
Explanation:
- A) ✔ Jupiter rotates once in just 10 hours.
Q47. A meteor that reaches the Earth’s surface is called a:
A) Comet
B) Asteroid
C) Meteorite
D) Shooting star
✅ Correct Answer: C) Meteorite
Explanation:
- C) ✔ Meteors that survive atmosphere and land are meteorites.
Q48. Which planet is called the “Ringed Planet”?
A) Saturn
B) Jupiter
C) Uranus
D) Neptune
✅ Correct Answer: A) Saturn
Explanation:
- A) ✔ Saturn’s rings are the most visible and spectacular.
Q49. Which constellation is also called the “Big Dipper”?
A) Orion
B) Ursa Major
C) Cassiopeia
D) Scorpius
✅ Correct Answer: B) Ursa Major
Explanation:
- B) ✔ Ursa Major resembles a big ladle, called the Big Dipper.
Q50. The path followed by a planet around the Sun is:
A) Circle
B) Ellipse
C) Spiral
D) Straight line
✅ Correct Answer: B) Ellipse
Explanation:
- B) ✔ According to Kepler’s Laws, planets move in elliptical orbits.
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