The Hubble Vision: A Quiz on Edwin Hubble's Cosmic Contributions

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The Hubble Vision: A Quiz On Edwin Hubbles Cosmic Contributions - Quiz

Embark on a cosmic odyssey with "The Hubble Vision: A Quiz on Edwin Hubble's Cosmic Contributions." This quiz is a tribute to the pioneering astronomer Edwin Hubble, whose profound discoveries reshaped our understanding of the universe. Delve into the intriguing realm of cosmic exploration as you navigate through questions designed to highlight Hubble's groundbreaking contributions to astronomy.

The quiz invites both enthusiasts and learners alike to appreciate the intricate tapestry of Hubble's cosmic vision, one that continues to inspire astronomers and space enthusiasts to this day.

Celebrate the man behind the telescope, whose name graces the iconic Hubble Space Telescope. Test Read moreyour cosmic knowledge and journey through the cosmos with questions that reflect the brilliance of Edwin Hubble's contributions to astronomy. Whether you're a stargazer or a student of the skies, this quiz offers a celestial adventure, shedding light on the remarkable legacy of a visionary astronomer whose discoveries continue to unveil the mysteries of the vast cosmic expanse.


Edwin Hubble's Cosmic Contributions Questions and Answers

  • 1. 

    What year was Edwin Hubble born?

    • A.

      1889

    • B.

      1894

    • C.

      1901

    • D.

      1912

    Correct Answer
    A. 1889
    Explanation
    Edwin Hubble, the American astronomer, was born on November 20, 1889, in Marshfield, Missouri, USA. Hubble's contributions to astronomy were groundbreaking, and he played a pivotal role in reshaping our understanding of the universe.

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  • 2. 

    Which telescope did Edwin Hubble use to observe and measure the properties of galaxies?

    • A.

      Kepler Space Telescope

    • B.

      Hubble Space Telescope

    • C.

      Hooker Telescope

    • D.

      Chandra X-ray Observatory

    Correct Answer
    B. Hubble Space Telescope
    Explanation
    Edwin Hubble primarily used the Mount Wilson Observatory's Hooker Telescope for his groundbreaking observations of galaxies. The Hooker Telescope, located on Mount Wilson in California, was one of the largest telescopes of its time and played a crucial role in Hubble's work.

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  • 3. 

    Edwin Hubble observed that galaxies were moving away from each other. What is this phenomenon called?

    • A.

      Galaxy rotation

    • B.

      Galactic superclusters

    • C.

      Cosmic expansion

    • D.

      Gravitational lensing

    Correct Answer
    C. Cosmic expansion
    Explanation
    Cosmic expansion refers to the observable phenomenon wherein galaxies in the universe are moving away from each other over time. Edwin Hubble made this groundbreaking observation in the 1920s. Hubble noticed that distant galaxies showed a redshift in their light spectra, indicating that they were moving away.

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  • 4. 

    What characteristics of galaxies did Hubble use to classify them into different types?

    • A.

      Color

    • B.

      Size

    • C.

      Shape

    • D.

      Distance

    Correct Answer
    C. Shape
    Explanation
    Edwin Hubble used the shape of galaxies as the primary characteristic to classify them into different types. Hubble developed the Hubble sequence, also known as the Hubble tuning fork diagram, to categorize galaxies based on their morphological features. The main types in the sequence include elliptical, spiral, and irregular galaxies, each distinguished by their visual appearance, such as the presence of a central bulge, spiral arms, or irregular structures

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  • 5. 

    What did Edwin Hubble determine about the universe based on his observations of distant galaxies?

    • A.

      The universe is static and unchanging.

    • B.

      The universe is expanding.

    • C.

      The universe is contracting.

    • D.

      The universe is full of dark matter.

    Correct Answer
    B. The universe is expanding.
    Explanation
    Based on his observations of distant galaxies, Edwin Hubble determined that the universe is expanding. Hubble observed that galaxies were moving away from each other, and he formulated Hubble's law, which describes the relationship between the recessional velocity of galaxies and their distance from an observer. This observation provided key evidence for the concept of cosmic expansion, implying that the universe is not static but rather undergoing a continuous expansion.

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  • 6. 

    Hubble discovered that the farther away a galaxy is, the ______ it appears to be moving from us.

    • A.

      Slower

    • B.

      Faster

    • C.

      Remains stationary

    • D.

      Rotates around

    Correct Answer
    B. Faster
    Explanation
    Hubble discovered that the farther away a galaxy is, the faster it appears to be moving from us. This observation is encapsulated in Hubble's law, which states that the recessional velocity of a galaxy is directly proportional to its distance from an observer. In other words, galaxies that are more distant from us exhibit higher velocities of recession, indicating the expansion of the universe.

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  • 7. 

    What did Edwin Hubble's discovery of Cepheid variable stars allow him to determine?

    • A.

      The age of the universe

    • B.

      The composition of black holes

    • C.

      The existence of dark matter

    • D.

      The distance to galaxies

    Correct Answer
    D. The distance to galaxies
    Explanation
    Edwin Hubble's discovery of Cepheid variable stars allowed him to determine the distance to galaxies. Cepheid variables are a type of variable star with a predictable relationship between their luminosity and pulsation period. By measuring the apparent brightness and pulsation period of Cepheid variables in distant galaxies, Hubble could determine their intrinsic luminosity.

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  • 8. 

    Which galaxy did Edwin Hubble discover and classify as a spiral galaxy?

    • A.

      Centaurus A

    • B.

      Sombrero Galaxy

    • C.

      Whirlpool Galaxy

    • D.

      Magellanic Clouds

    Correct Answer
    C. Whirlpool Galaxy
    Explanation
    Edwin Hubble discovered and classified the Whirlpool Galaxy (Messier 51) as a spiral galaxy. The Whirlpool Galaxy is located in the constellation Canes Venatici and is known for its striking spiral structure. Hubble's observations and classifications, including those of galaxies like the Whirlpool Galaxy, were instrumental in developing the Hubble sequence, a system for categorizing galaxies based on their morphological features.

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  • 9. 

    What did Hubble determine about the motion of galaxies within clusters?

    • A.

      Galaxies move randomly within clusters.

    • B.

      Galaxies always move towards the center of clusters.

    • C.

      Galaxies orbit around other galaxies within clusters.

    • D.

      Galaxies have no motion within clusters.

    Correct Answer
    A. Galaxies move randomly within clusters.
    Explanation
    Hubble's work contributed to the understanding that galaxies within galaxy clusters are not necessarily moving in a coordinated or systematic way, but their motions within the clusters can be somewhat random. This observation is part of the broader context of his findings related to the expansion of the universe.

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  • 10. 

    What is the Hubble constant a measure of?

    • A.

      The age of the universe

    • B.

      The rate of cosmic expansion

    • C.

      The luminosity of distant stars

    • D.

      The density of dark matter

    Correct Answer
    B. The rate of cosmic expansion
    Explanation
    The Hubble constant is a measure of the rate of cosmic expansion. It quantifies how fast the universe is currently expanding. It is denoted by the symbol "H₀" and has units of kilometers per second per megaparsec (km/s/Mpc). The Hubble constant is a fundamental parameter in cosmology and plays a crucial role in determining the age and size of the observable universe.

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  • 11. 

    What is the name of the space telescope launched in 1990 to honor Edwin Hubble's contributions?

    • A.

      Spitzer Space Telescope

    • B.

      Chandra X-ray Observatory

    • C.

      James Webb Space Telescope

    • D.

      Hubble Space Telescope

    Correct Answer
    D. Hubble Space Telescope
    Explanation
    The Hubble Space Telescope (HST) is a space-based observatory that was launched into orbit by the Space Shuttle Discovery on April 24, 1990. It is named after the astronomer Edwin Hubble in recognition of his significant contributions to the field of astronomy, particularly his discovery of the expansion of the universe.

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  • 12. 

    What is the name of the instrument installed on the Hubble Space Telescope that corrected its initial optical flaw?

    • A.

      Wide Field Planetary Camera 2

    • B.

      Advanced Camera for Surveys

    • C.

      Space Telescope Imaging Spectrograph

    • D.

      Cosmic Origins Spectrograph

    Correct Answer
    A. Wide Field Planetary Camera 2
    Explanation
    The instrument installed on the Hubble Space Telescope that corrected its initial optical flaw is the Wide Field Planetary Camera 2 (WFPC2). WFPC2 was installed during the first servicing mission (STS-61) in December 1993 and played a crucial role in producing many of the iconic images captured by Hubble.

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  • 13. 

    What did Hubble discover in 1923 that provided evidence for the existence of other galaxies beyond the Milky Way?

    • A.

      Cosmic microwave background radiation

    • B.

      Quasars

    • C.

      Variable stars

    • D.

      Andromeda Galaxy

    Correct Answer
    C. Variable stars
    Explanation
    In 1923, Edwin Hubble made a crucial discovery related to variable stars known as Cepheid variables. He observed Cepheid variable stars in the Andromeda Nebula (now recognized as the Andromeda Galaxy). By measuring the period-luminosity relationship of these stars, Hubble was able to determine that the Andromeda Nebula was much farther away than the stars within the Milky Way.

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  • 14. 

    What is the primary purpose of the Wide Field Camera 3 (WFC3) on the Hubble Space Telescope?

    • A.

      Measure the cosmic microwave background radiation.

    • B.

      Observe distant quasars and black holes.

    • C.

      Image and study the atmospheres of exoplanets.

    • D.

      Capture high-resolution images across a broad range of wavelengths.

    Correct Answer
    C. Image and study the atmospheres of exoplanets.
    Explanation
    The Wide Field Camera 3 (WFC3) on the Hubble Space Telescope is a versatile instrument designed for imaging in both the ultraviolet (UV) and near-infrared (NIR) regions of the electromagnetic spectrum. Its primary purpose is to capture high-resolution images of celestial objects across a broad range of wavelengths.

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  • 15. 

    What did Hubble determine to be the primary factor influencing the redshifts of galaxies?

    • A.

      Our Milky Way galaxy's gravitational pull

    • B.

      The interstellar medium

    • C.

      Atmospheric distortion

    • D.

      Cosmic expansion

    Correct Answer
    D. Cosmic expansion
    Explanation
    Hubble determined that the primary factor influencing the redshifts of galaxies is cosmic expansion. The redshift of light from distant galaxies is a result of the expansion of the universe, causing galaxies to move away from each other. This phenomenon is known as cosmological redshift. The larger the distance to a galaxy, the greater the redshift observed in its light spectrum. Hubble's work on redshifts and the relationship between redshift and distance played a key role in providing evidence for the expanding universe and the formulation of Hubble's law.

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  • Current Version
  • Nov 20, 2023
    Quiz Edited by
    ProProfs Editorial Team
  • Nov 20, 2023
    Quiz Created by
    Surajit Dey
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