World Universe Science Information Online Test (World General Knowledge) Updated

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Question 1

1. What is the name of the telescope launched in December 2021 that replaced the Hubble Space Telescope?

Answer

Spitzer Space Telescope

Answer

Kepler Space Telescope

Answer

James Webb Space Telescope

Answer

Chandra X-ray Observatory

Question 2

2. What is Schrödinger's Cat?

Answer

A thought experiment illustrating the paradox of quantum superposition

Answer

A scientific theory about feline vision

Answer

A real experiment performed on a cat in space

Answer

The name of the first cat sent into orbit

Question 3

3. Which law states that the orbit of each planet is an ellipse with the Sun at one of the two foci?

Answer

Kepler's First Law

Answer

Newton's First Law

Answer

Hubble's Law

Answer

Bohr's Law

Question 4

4. What is the TRAPPIST-1 system famous for?

Answer

Being the closest star system to Earth

Answer

Having the largest known black hole

Answer

Containing seven Earth-sized planets, three of which may be in the habitable zone

Answer

Being the first system where a supernova was observed

Question 5

5. Who proposed the heliocentric model of the Solar System?

Answer

Nicolaus Copernicus

Answer

Galileo Galilei

Answer

Tycho Brahe

Question 6

6. What is the chemical composition of water?

Question 7

7. Halley's Comet is visible from Earth approximately every how many years?

Answer

75–76 years

Answer

50–55 years

Answer

25–30 years

Question 8

8. What is the Greenhouse Effect?

Answer

The process by which plants produce oxygen

Answer

The cooling of Earth's atmosphere by clouds

Answer

The warming of Earth's surface due to the trapping of heat by atmospheric gases

Answer

The depletion of the ozone layer

Question 9

9. What is absolute zero?

Answer

-200°C — the temperature of liquid nitrogen

Answer

-100°C — the coldest temperature in the Solar System

Answer

0°C — the freezing point of water

Answer

-273.15°C (0 Kelvin) — the theoretical lowest possible temperature

Question 10

10. What is the name of the first animal to orbit Earth in space?

Answer

Gordo the squirrel monkey

Answer

Laika the dog

Answer

Ham the chimpanzee

Answer

Belka the dog

Question 11

11. What is the unit of measurement for pressure?

Question 12

12. Which planet is the hottest in our Solar System?

Question 13

13. What is the name of the first exoplanet confirmed orbiting a sun-like star?

Answer

HD 209458 b

Answer

TRAPPIST-1e

Answer

51 Pegasi b (Dimidium)

Answer

Kepler-22b

Question 14

14. What is the approximate distance from the Earth to the Sun?

Answer

150 million km (1 AU)

Answer

100 million km

Answer

200 million km

Answer

300 million km

Question 15

15. What is a "red giant" star?

Answer

A star in its early formation stage

Answer

A neutron star with a red glow

Answer

A large, cool star in a late stage of stellar evolution when a medium-mass star expands

Answer

A very hot, small, dense star

Question 16

16. What is the name of NASA's Mars rover that landed in February 2021?

Answer

Perseverance

Answer

Opportunity

Question 17

17. Which planet has the most moons in our Solar System?

Question 18

18. Which planet is known as the "Earth's Twin" due to its similar size?

Question 19

19. What is the Oort Cloud?

Answer

A cloud of gas around the Sun

Answer

A region of ice in the inner Solar System

Answer

The atmosphere of Jupiter

Answer

A spherical cloud of icy objects at the outermost edge of the Solar System, believed to be the source of long-period comets

Question 20

20. What is the "Goldilocks Zone" (Habitable Zone) in astronomy?

Answer

The area near a black hole where matter orbits safely

Answer

The region of space between asteroids in the Asteroid Belt

Answer

The orbital region around a star where liquid water could exist on a planet's surface

Answer

The zone in a galaxy where stars are most likely to form

Question 21

21. What is the Chandrasekhar Limit?

Answer

The maximum mass a white dwarf star can have before collapsing into a neutron star or black hole

Answer

The maximum distance light can travel in the Universe

Answer

The speed limit of objects in a black hole

Answer

The minimum temperature required for nuclear fusion

Question 22

22. What is the name of the deep-space observation programme that identified thousands of exoplanets?

Answer

Chandra X-ray Observatory

Answer

Hubble Space Telescope Programme

Answer

Spitzer Space Telescope Programme

Answer

Kepler Space Telescope Programme

Question 23

23. Which is the largest moon in the Solar System?

Question 24

24. What is a light-year?

Answer

The age of a star measured in years

Answer

The distance light travels in one year

Answer

The brightness of a star

Answer

The time it takes light to travel from the Sun to Earth

Question 25

25. What is the Doppler Effect?

Answer

The splitting of white light into a spectrum

Answer

The bending of light around massive objects

Answer

The change in frequency or wavelength of a wave relative to an observer moving relative to the wave source

Answer

The absorption of light by a black hole

Question 26

26. Which planet has a ring system most visible from Earth?

Question 27

27. Who was the first human to walk on the Moon?

Answer

Neil Armstrong

Answer

Buzz Aldrin

Answer

Yuri Gagarin

Answer

Alan Shepard

Question 28

28. What are sunspots?

Answer

Holes in the Sun's corona

Answer

Nuclear explosions on the Sun's surface

Answer

Burning patches on the Sun's surface

Answer

Temporary cooler regions on the Sun's photosphere caused by intense magnetic activity

Question 29

29. What is a "white dwarf"?

Answer

A type of neutron star

Answer

The dense, hot remnant of a low-to-medium mass star after it has shed its outer layers

Answer

A small, hot star newly formed from a nebula

Answer

A small star with white coloured surface gas

Question 30

30. What type of star is our Sun?

Answer

Neutron Star

Answer

Yellow Dwarf (G-type main-sequence star)

Answer

White Dwarf

Question 31

31. Which is the largest planet in our Solar System?

Question 32

32. Who was the first human to travel to outer space?

Answer

Alan Shepard

Answer

Buzz Aldrin

Answer

Neil Armstrong

Answer

Yuri Gagarin

Question 33

33. What does E=mc² represent?

Answer

Entropy equals momentum times the speed of light squared

Answer

Electricity equals mass times distance squared

Answer

Energy equals mass times the speed of light squared

Answer

Energy equals mass times the speed of sound squared

Question 34

34. What is the International Space Station (ISS) and which countries are its main partners?

Answer

An orbiting laboratory jointly operated by the USA, Russia, Europe, Japan, and Canada

Answer

A deep-space observation platform near Mars

Answer

A moon base shared by the USA and China

Answer

A privately owned space hotel

Question 35

35. Which planet is farthest from the Sun in our Solar System?

Question 36

36. What is the name of the layer of Earth's atmosphere closest to the surface, where weather occurs?

Answer

Troposphere

Answer

Mesosphere

Answer

Thermosphere

Answer

Stratosphere

Question 37

37. What does the Cosmic Microwave Background (CMB) radiation represent?

Answer

Radiation from the Sun's corona

Answer

Radiation from distant quasars

Answer

Radiation emitted by dark matter

Answer

The thermal radiation left over from the early Universe shortly after the Big Bang

Question 38

38. Who discovered the law of gravity, supposedly after observing an apple falling?

Answer

Johannes Kepler

Answer

Isaac Newton

Answer

Galileo Galilei

Answer

Albert Einstein

Question 39

39. What is the process by which the Sun produces energy?

Answer

Nuclear Fusion

Answer

Chemical Combustion

Answer

Gravitational Compression

Answer

Nuclear Fission

Question 40

40. What is the name of the supermassive black hole at the centre of the Milky Way Galaxy?

Answer

Sagittarius A* (Sgr A*)

Answer

Cygnus X-1

Question 41

41. What is the name of the largest volcano in the Solar System?

Answer

Olympus Mons (Mars)

Answer

Maxwell Montes (Venus)

Answer

Mount Everest (Earth)

Answer

Mauna Kea (Earth)

Question 42

42. What was the name of the first artificial satellite launched into space?

Answer

Explorer 1

Question 43

43. Which space probe was the first to leave the Solar System and enter interstellar space?

Answer

New Horizons

Answer

Pioneer 10

Question 44

44. What is the phenomenon where a star explodes at the end of its life in a massive explosion?

Question 45

45. What does a light-year measure?

Answer

Brightness

Question 46

46. Who was the first person to observe the moons of Jupiter and support the heliocentric model with a telescope?

Answer

Nicolaus Copernicus

Answer

Johannes Kepler

Answer

Isaac Newton

Answer

Galileo Galilei

Question 47

47. What is the significance of the Hubble Deep Field image?

Answer

It showed the surface of Pluto for the first time

Answer

It captured the first image of a black hole

Answer

It showed the formation of the Solar System

Answer

It revealed thousands of galaxies in a tiny patch of sky, demonstrating the vastness of the Universe

Question 48

48. What is the Event Horizon of a black hole?

Answer

The edge of the black hole's magnetic field

Answer

The spinning disc of matter around a black hole

Answer

The region where the black hole emits radiation

Answer

The point of no return surrounding a black hole beyond which nothing can escape its gravity

Question 49

49. What is Hubble's Law?

Answer

Stars rotate around black holes at uniform speed

Answer

The Universe is contracting at a constant rate

Answer

All galaxies are moving towards each other

Answer

Galaxies are moving away from us at speeds proportional to their distance

Question 50

50. What is a "shooting star"?

Answer

A star that has exploded

Answer

A small comet passing near Earth

Answer

A satellite falling from orbit

Answer

A meteor burning up in Earth's atmosphere

Question 51

51. Which scientist proposed the General Theory of Relativity?

Answer

Niels Bohr

Answer

Isaac Newton

Answer

Albert Einstein

Answer

Max Planck

Question 52

52. Who invented the telescope?

Answer

Hans Lippershey

Answer

Galileo Galilei

Answer

Johannes Kepler

Answer

Isaac Newton

Question 53

53. What is the name of the galaxy in which our Solar System is located?

Answer

Triangulum Galaxy

Answer

Milky Way Galaxy

Answer

Sombrero Galaxy

Answer

Andromeda Galaxy

Question 54

54. What is a Quasar?

Answer

A slow-moving neutron star

Answer

A small asteroid belt

Answer

An extremely luminous active galactic nucleus powered by a supermassive black hole

Answer

A type of comet

Question 55

55. What is the name of the theory that describes the behaviour of matter and energy at the smallest scales (subatomic level)?

Answer

Classical Mechanics

Answer

String Theory

Answer

General Theory of Relativity

Answer

Quantum Mechanics

Question 56

56. What is antimatter?

Answer

A hypothetical substance faster than light

Answer

The substance making up dark matter

Answer

Matter composed of antiparticles, which have the same mass but opposite charge to normal particles

Answer

Matter that exists only in black holes

Question 57

57. What is the speed of light in a vacuum?

Answer

299,792 km/s (approximately 3 × 10⁸ m/s)

Answer

150,000 km/s

Answer

200,000 km/s

Question 58

58. What is the Asteroid Belt and where is it located?

Answer

Between Mars and Jupiter

Answer

Between Earth and Mars

Answer

Between Jupiter and Saturn

Answer

Between Mercury and Venus

Question 59

59. What is a neutron star?

Answer

A newly formed star before it begins nuclear fusion

Answer

The extremely dense remnant of a massive star after a supernova, composed almost entirely of neutrons

Answer

A star composed entirely of hydrogen neutrons

Answer

A star with neutral electric charge

Question 60

60. What are the four fundamental forces of nature?

Answer

Gravity, Friction, Tension, Normal Force

Answer

Nuclear, Chemical, Thermal, Gravitational

Answer

Magnetic, Electric, Gravitational, Kinetic

Answer

Strong Nuclear, Weak Nuclear, Electromagnetic, Gravitational

Question 61

61. What is a nebula?

Answer

A type of galaxy

Answer

A cluster of dark matter

Answer

A cloud of gas and dust in space that is often a region of star formation

Answer

A black hole surrounded by light

Question 62

62. What is the name of the nearest star to Earth (other than the Sun)?

Answer

Alpha Centauri A

Answer

Proxima Centauri

Answer

Betelgeuse

Question 63

63. Which planet has the shortest day (fastest rotation) in the Solar System?

Question 64

64. What is an Astronomical Unit (AU)?

Answer

The distance light travels in one month

Answer

The average distance from the Earth to the Sun, approximately 150 million km

Answer

A unit for measuring the brightness of stars

Answer

A unit for measuring the mass of stars

Answer 196

A tunnel through space-time

Answer 197

A dark region of space with no stars

Answer 198

A region in space where gravity is so strong that not even light can escape

Answer 199

A dead star that has turned completely dark

Answer 200

Energy released by black holes

Answer 201

Radiation emitted by pulsars

Answer 202

A hypothetical form of energy that permeates all of space and is responsible for the accelerating expansion of the Universe

Answer 203

The energy inside dark matter

Answer 204

Photosphere

Answer 205

Chromosphere

Answer 206

Large Magellanic Cloud

Answer 207

Centaurus A

Answer 208

Triangulum Galaxy (M33)

Answer 209

Andromeda Galaxy (M31)

Answer 210

Phobos, Deimos, Europa, Titan

Answer 211

Titan, Rhea, Dione, Tethys

Answer 212

Io, Europa, Ganymede, Callisto

Answer 213

Miranda, Ariel, Umbriel, Titania

Answer 214

Challenger

Answer 215

A layer of oxygen near Earth's surface

Answer 216

A layer in the stratosphere that absorbs most of the Sun's harmful ultraviolet (UV) radiation

Answer 217

A protective layer that reflects sunlight back into space

Answer 218

A layer of ozone in the lower atmosphere that traps heat

Answer 219

Gravitational force

Answer 220

Magnetic force

Answer 221

Nuclear force

Answer 222

Centrifugal force

Answer 223

National Astronomy and Space Agency

Answer 224

National Aerospace Science Academy

Answer 225

North American Space Association

Answer 226

National Aeronautics and Space Administration

Answer 227

Abdul Salam

Answer 228

A.P.J. Abdul Kalam

Answer 229

Homi Bhabha

Answer 230

Vikram Sarabhai

Answer 231

Paksat-MM1

Answer 232

Gravitational force

Answer 233

Weak nuclear force

Answer 234

Electromagnetic force

Answer 235

Strong nuclear force

Answer 236

Radiative Zone

Answer 237

Chromosphere

Answer 238

Photosphere

Answer 239

Iron and nickel

Answer 240

Rock and gas

Answer 241

Liquid hydrogen

Answer 242

Ice, dust, and rocky material

Answer 243

Thermometer

Answer 244

Hygrometer

Answer 245

Anemometer

Answer 246

340 m/s (approximately)

Answer 247

Inversely proportional to their masses and directly proportional to the distance between them

Answer 248

Directly proportional to their masses and directly proportional to the square of the distance between them

Answer 249

Independent of their masses and dependent only on distance

Answer 250

Directly proportional to their masses and inversely proportional to the square of the distance between them

Answer 251

Edwin Hubble

Answer 252

James Hubble

Answer 253

Walter Hubble

Answer 254

George Hubble

Answer 255

It is smaller than Earth's Moon

Answer 256

It has not cleared the neighbourhood of its orbit

Answer 257

It was discovered to be a captured asteroid

Answer 258

It was found to be made of gas, not rock

Answer 259

A black hole that spins rapidly

Answer 260

A type of exploding star

Answer 261

A star that pulses in brightness

Answer 262

A rapidly rotating neutron star that emits beams of electromagnetic radiation

Answer 263

A joint US-European company; founded in 1995

Answer 264

A Russian space agency; founded by Roscosmos

Answer 265

A NASA division; founded by Bill Gates

Answer 266

A private aerospace company; founded by Elon Musk in 2002

Answer 267

A Pakistani telecommunications company

Answer 268

Pakistan's national space agency (Space and Upper Atmosphere Research Commission)

Answer 269

The body overseeing Pakistan's satellite TV

Answer 270

Pakistan's nuclear regulatory authority

Answer 271

8 minutes 20 seconds

Answer 272

15 minutes

Answer 273

1 minute 20 seconds

Answer 274

10 billion years ago

Answer 275

13.8 billion years ago

Answer 276

4.6 billion years ago

Answer 277

20 billion years ago

Answer 278

The dark regions between galaxies

Answer 279

Matter made of anti-particles

Answer 280

A hypothetical form of matter that does not interact with electromagnetic radiation but exerts gravitational effects

Answer 281

Matter that has turned into a black hole

General Knowledge	World gk
Topic	World Universe Science Information
Test Name	World Universe Science Information Test Online
Test Type	MCQs Test
Total Questions	80 MCQs
Time Allowed	80 Minutes

World Universe Science Information Online Test (World General Knowledge) Updated

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