About Space Science

The term "space science" refers to the study of all of the scientific fields that are concerned with the exploration of space and the investigation of the natural occurrences and physical bodies that can be found in the cosmos, such as astrobiology and space medicine.

Meaning

Astronautics and space science are two names that are used interchangeably to refer to the same field of scientific knowledge that pertains to space exploration. In addition to its dependence on the more traditional disciplines of physics, chemistry, biology, and engineering, the study of space necessitates the conduct of its own unique research. The specific fields of study that are important to take into consideration are determined by the kind of mission that is being planned. Missions in space can be broken down into one of four primary kinds.

Objectives of Space Science

Multispectral scanning The method known as multispectral scanning is an essential one in the field of space research. Only a few carefully chosen wavelengths are utilized to create the images, and the resulting data may either be combined into a single, highly detailed color snapshot or can be examined on its own. Certain spacecraft is outfitted with more specialist equipment, such as ultraviolet spectrographs, coronographs, and spectroheliographs, for the purpose of studying stars and the sun, respectively.

Multispectral scanning

The method known as multispectral scanning is an essential one in the field of space research. Only a few carefully chosen wavelengths are utilized to create the images, and the resulting data may either be combined into a single, highly detailed color snapshot or can be examined on its own. Certain spacecraft is outfitted with more specialist equipment, such as ultraviolet spectrographs, coronographs, and spectroheliographs, for the purpose of studying stars and the sun, respectively.

Following are some of the multiple choice questions on the Space Science with answers that will help the students in developing their knowledge.

Space Science MCQ

1. The hottest color star is

  • Blue
  • White
  • Yellow
  • Red

2. The apparent brightness of a star

  • varies with the position from which it is viewed.
  • can be calculated from its absolute brightness and mass.
  • is greater as distance from the sun increases.
  • is a measure of its light viewed from any position.

3. The distance between stars is typically measured in

  • light-years
  • liometers
  • astronomical units
  • miles

4. Heat energy from the Earth

  • biofuel
  • hydroelectric
  • wind
  • geothermal

5. Does the moon rotate or revolve around Earth?

  • Rotate
  • Revolve

6. Which star is the nearest to our Earth

  • Polaris
  • Rasalhague
  • Arcturus
  • Sun

7. Why does the Earth seem flat for us?

  • there are different Earths
  • The earth is round, but we only see a small part that seems flat. 
  • Earth is round like a plate, so it seems round when you are over it and flat when you are on it
  • Earth is round like a ball, but people live on the flat part in the middle..

8. What number planet from the sun is Earth?

  • 1
  • 2
  • 3
  • 8

9. Why don't people on the South Pole fall off Earth?

  • Sticky Shoes
  • Good Grip
  • They are frozen to Earth
  • Gravity

10. How does Earth have day or night?

  • Magic
  • The earth's rotation around it's axis, causing one side to face the sun, and the other to face away.
  • By the moon creating night and the sun creating day.
  • none of the above

11. Which of the following is NOT a characteristic of both the moon and Earth?

  • gravity
  • rocks
  • craters
  • oceans

12. Earth's rotation causes all of the following EXCEPT

  • day and night
  • apparent movement of the sun across the sky
  • changing shadows
  • weather

13. Which of these appears in Earth's atmosphere?

  • a moon
  • a meteor
  • an asteroid
  • a comet

14. Why would you weigh more on Jupiter than you do on Earth?

  • Jupiter has more mass and more gravitational pull
  • Jupiter has less mass and less gravitational pull
  • You would not weigh more on Jupiter
  • Jupiter has more mass and less gravitational pull

15. What protects life on Earth from harmful ultra violet rays?

  • Earth's distance from the Sun
  • Earth's tilt
  • Moon's gravity
  • Ozone layer

16. Life on Earth would not be possible without which of the following?

  • A moon & liquid water
  • A moon and Earth's location
  • Ozone and a moon
  • Water & Earth's location from the Sun

17. A lunar eclipse is when the moon passes into Earth's shadow, causing the light to not hit the moon. The order would be: Sun - Earth - Moon.

True of False:
  • True
  • False

18. A solar eclipse is when the moon passes between Earth and Sun, causing part of Earth to not see the sun's light. The order would be: Sun- Moon - Earth.

True of False:
  • True
  • False

19. Star patterns are called constellations.

True or False:
  • T
  • F

20. The North Star is called POLARIS?

True or False:
  • T
  • F

21. One day on Earth is caused by one REVOLUTION around the sun.

True or False:
  • True
  • False

22. One day on Earth is caused by one ROTATION around the Earth's Axis.

True or False:
  • True
  • False

23. Because the Earth is 93 million mies from the Sun, the light from this star takes_____ to reach us.

  • 8 hours
  • 1 hour
  • 8 minutes
  • none of the above

24. What does Earth ROTATE (spin) around?

  • Sun
  • Moon
  • It's Axis
  • Other Planets

25. An apparent shift in the position of an object when viewed from different locations.

  • Parallax
  • Perihelion
  • Solar Nebula
  • Prominence

26. An explosive release of energy that comes from the sun and that is associated with magnetic disturbances on the sun's surfaces.

  • Parallax
  • Solar Flare
  • Perihelion
  • Solar Nebula

27. Select the correct spelling:-

  • parallax
  • parallex
  • parrallax
  • parrallex

28. A light year is...

  • The speed light travels
  • How long it takes light to get to you from the sun
  • The distance light can travel in a year
  • How many years it takes light to be emitted

29. This is what our sun will become at the end of its life cycle.

  • red dwarf
  • white dwarf
  • blue supergiant
  • black hole

30. The smaller the planet or moon, the less gravity it will have.

  • true
  • false

31. Which season has the shortest days (least amount of daylight)?

  • summer
  • spring
  • fall
  • winter

32. It takes the moon about a _____ to revolve around the Earth

  • day
  • month
  • year
  • minute

33. Shadows in the morning will be longer than at noon.

  • True
  • False

34. The Sun appears to move across the sky because...

  • The sun is spinning around the Earth
  • The moon is spinning around the Earth
  • The Earth is rotating (spinning)
  • none of the above

35. Half of the moon and Earth are always...

  • Lit and Dark
  • dry and sunny
  • hot and cold
  • All of above

36. The Earth spins around its own axis once every ____ hours

  • 22
  • 24
  • 365
  • 18

37. Astronomers can often identify a binary system that includes only one visible star by observing the effects of the dim star’s _________ on its brighter companion.

  • brightness
  • gravity
  • density
  • composition

38. If the Southern Hemisphere is experience winter, the Northern Hemisphere is experiencing....

  • winter
  • summer
  • fall
  • spring

39. Brighter stars are hotter, larger, and closer to Earth

  • True
  • False

40. If I drop a jug of water and a pencil at the same time, which would hit first?

  • pencil
  • water jug
  • same time
  • none of the above

41. How long does earth's rotation last?

  • 90 hours
  • about 1 hour
  • 24 hours
  • 48 hours

42. Our star is a

  • yellow/ medium star
  • yellow/ small star
  • yellow/ large star
  • All of above

43. The color of the star tells us its

  • composition
  • Temperature
  • Luminosity 
  • Mass

44. What is the main element in a stars composition?

  • Hydrogen 
  • Helium 
  • Lithium 
  • Heavy Elements 

45. If scientists discovered a large, round object revolving around a star, that object would be considered a

  • moon
  • planet
  • star
  • solar system

46. The Earth's _______ is an imaginary line that goes from the North Pole to the South Pole.

  • vernal equinox
  • axis
  • solar eclipse
  • solar flare

47. What planets are the inner planets?

  • Earth, Mars, Mercury, Venus
  • Jupiter, Earth, Mars, Venus
  • Jupiter, Saturn, Uranus, Neptune
  • Earth, Mars, Neptune, Pluto

48. What is the next phase for our sun in its life cycle?

  • supernova
  • red giant
  • white dwarf
  • neutron star

49. What type of star will die the fastest

  • Medium Mass
  • High Mass 
  • Low Mass
  • none of the above

50. What is the term used for a cloud of gas and dust?

  • gas giant
  • solar dust
  • solar cloud
  • nebula

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