Grade 9 Space Quiz (Exam Review)

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  • 1/19 Questions

    Moon is a satellite.

    • True
    • False
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About This Quiz

The Grade 9 Space Quiz (Exam Review) assesses knowledge on constellations, celestial phases, and planetary science, focusing on Jupiter's moons and the classification of planets. It's designed to enhance understanding of key astronomical concepts.

Grade 9 Space Quiz (Exam Review) - Quiz

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  • 2. 

    The asteroid belt is between ________ and Jupiter.

    Explanation
    The asteroid belt is located between Mars and Jupiter. This region is filled with numerous small rocky objects, known as asteroids, which orbit the Sun. Mars is the planet closest to the asteroid belt, and it is situated between the innermost planets (Mercury, Venus, Earth) and Jupiter, the largest planet in our solar system. The gravitational pull of Jupiter prevents the asteroids from coalescing into a planet, resulting in the formation of the asteroid belt.

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  • 3. 

    Which of the following planets are inner planets?

    • Jupiter

    • Earth

    • Venus

    • Neptune

    • Mars

    • Uranus

    • Saturn

    • Mercury

    Correct Answer(s)
    A. Earth
    A. Venus
    A. Mars
    A. Mercury
    Explanation
    The inner planets are the ones that are closest to the Sun. In this case, the correct answer includes Earth, Venus, Mars, and Mercury. These planets are considered inner planets because they orbit the Sun within the asteroid belt. Jupiter, Neptune, Uranus, and Saturn, on the other hand, are considered outer planets as they are located beyond the asteroid belt.

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  • 4. 

    Which of the following is not scientifically proven?

    • Black hole

    • Warmhole

    • Natural satellites

    • None, they are all proven.

    Correct Answer
    A. Warmhole
    Explanation
    The term "warmhole" is not scientifically proven. Warmholes, also known as "wormholes," are hypothetical tunnels in spacetime that could potentially connect distant parts of the universe or even different universes. While they are a concept studied in theoretical physics, there is currently no empirical evidence or experimental confirmation of their existence. In contrast, black holes and natural satellites are well-established phenomena that have been observed and studied extensively in the field of astrophysics.

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  • 5. 

    Asterism is another name for constellation.

    • True

    • False

    Correct Answer
    A. False
    Explanation
    The statement is false because an asterism is not another name for a constellation. An asterism refers to a smaller group of stars that form a recognizable pattern within a constellation. Constellations, on the other hand, are larger areas of the sky that contain multiple stars and are used for navigation and identification purposes. While some constellations may contain asterisms, they are not interchangeable terms.

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  • 6. 

    In our solar system, retrograde motion is...

    • East-West

    • West-East

    Correct Answer
    A. East-West
    Explanation
    Retrograde motion refers to the apparent backward movement of a celestial object in relation to the other objects in the sky. In our solar system, retrograde motion is observed when planets appear to move from east to west, opposite to their usual west to east movement. This occurs when the Earth, which orbits the Sun faster than outer planets, overtakes them in their orbit. As a result, it creates an illusion of the outer planet moving backward before resuming its regular eastward path. Therefore, retrograde motion in our solar system is from east to west.

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  • 7. 

    Geocentric model is believed today.

    • True

    • False

    Correct Answer
    A. False
    Explanation
    The geocentric model, which places the Earth at the center of the universe, is not believed today. This model was widely accepted in ancient times but was eventually replaced by the heliocentric model, which places the Sun at the center. The heliocentric model is the currently accepted scientific understanding of our solar system.

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  • 8. 

    What is the name of the moon, of Jupiter, that is thought to have liquid water oceans? 

    • Europa

    • Callisto

    • Shoemaker-levy

    • Mars

    Correct Answer
    A. Europa
    Explanation
    Europa is the correct answer because it is known to have liquid water oceans. Scientists believe that beneath its icy surface, Europa has a subsurface ocean of liquid water, making it one of the most likely places in our solar system to harbor life. This belief is supported by observations of its surface features, such as cracks and ridges, which suggest the presence of a subsurface ocean. In addition, data from the Galileo spacecraft has provided strong evidence for the existence of this hidden ocean on Europa.

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  • 9. 

    Outer planets are also know as ________ compositions.

    Correct Answer
    gas
    Explanation
    Outer planets are known as gas compositions because they are primarily composed of gases, such as hydrogen and helium. Unlike the inner planets, which are mostly composed of rock and metal, the outer planets have thick atmospheres made up of these gases. This is why they are often referred to as gas giants or gas planets. The gas compositions of these outer planets give them their distinct characteristics, including their large size, low density, and lack of a solid surface.

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  • 10. 

    There are_______ constellations.

    Correct Answer
    88
    eighty eight
    Explanation
    The correct answer is 88, which is also written as eighty eight. This is the number of constellations that exist.

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  • 11. 

    What phase is after the White dwarf?

    • Brown dwarf

    • Black dwarf

    • Black hole

    • Supergiant

    Correct Answer
    A. Black dwarf
    Explanation
    After the White dwarf phase, a star would eventually cool down and fade away, becoming a Black dwarf. A Black dwarf is a hypothetical celestial object that is formed when a White dwarf has completely cooled down and no longer emits any radiation. It is essentially a cold, dark remnant of a star that has exhausted all its nuclear fuel. However, it is important to note that no Black dwarfs have been observed yet, as the universe is not old enough for any White dwarf to have cooled down completely.

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  • 12. 

    Who decides if a constellation is official?

    • NASA (National Aeronautics and Space Administration)

    • IAU (Information Astronomical Union)

    • Obama

    • IAU (International Astronomical Union)

    Correct Answer
    A. IAU (International Astronomical Union)
    Explanation
    The International Astronomical Union (IAU) is responsible for officially recognizing and defining constellations. As the internationally recognized authority in astronomy, the IAU establishes the boundaries and names of constellations based on scientific consensus and historical tradition. NASA, on the other hand, is a space agency that focuses on space exploration and research, while Obama is a former president and not directly involved in astronomical decisions. The option "IAU (Information Astronomical Union)" is likely a typographical error, as the correct acronym is IAU.

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  • 13. 

    Who first proposed the idea of the Heliocentric model?

    • Edwin Hubble

    • Obama

    • Copernicus

    • Galileo

    Correct Answer
    A. Copernicus
    Explanation
    Copernicus is the correct answer because he was the first to propose the idea of the Heliocentric model. He published his book "De Revolutionibus Orbium Coelestium" in 1543, which challenged the prevailing geocentric model and suggested that the Earth revolves around the Sun. This idea revolutionized the field of astronomy and laid the foundation for our modern understanding of the solar system.

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  • 14. 

    Pleiades is and example of a constellation.

    • True

    • False

    Correct Answer
    A. False
    Explanation
    It's an asterism.

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  • 15. 

    The big bang theory was started with

    • Lemaitre

    • Gamow

    • Einstein

    • Saddam Hussein

    Correct Answer
    A. Lemaitre
    Explanation
    The correct answer is Lemaitre. Lemaitre was a Belgian physicist and Catholic priest who proposed the theory of the Big Bang in the 1920s. He suggested that the universe began as a singularity and has been expanding ever since. His theory was supported by Edwin Hubble's observations of the redshift of galaxies. This theory revolutionized our understanding of the origins and evolution of the universe.

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  • 16. 

    Another name for an asteroid is...

    • Minor planet

    • Small planet

    • Shooting star

    • Meteorite

    Correct Answer
    A. Minor planet
    Explanation
    An asteroid is commonly referred to as a minor planet because it is a small celestial body that orbits the sun and is similar to a planet in many ways, but smaller in size. This term distinguishes asteroids from other celestial objects such as shooting stars (meteors) and meteorites, which are associated with the Earth's atmosphere and impact events.

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  • 17. 

    Which is the most suitable for the following definition: a large eruption of glowing gas that starts on the sun and rises high above it. 

    • Solar prominences

    • Solar flares

    • Sun spots

    • Fusion

    Correct Answer
    A. Solar prominences
    Explanation
    Solar prominences are large eruptions of glowing gas that start on the sun and rise high above it. They are often seen as loops or arcs extending from the sun's surface. Solar flares, on the other hand, are sudden releases of energy in the form of intense bursts of radiation. Sunspots are dark spots on the sun's surface that are cooler than the surrounding areas. Fusion is a nuclear reaction that occurs in the sun's core, where hydrogen atoms combine to form helium and release a large amount of energy. Therefore, solar prominences are the most suitable answer for the given definition.

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  • 18. 

    Which of the following were reason(s) of why ancient people looked at the sky?

    • Time of day

    • Weather

    • Date

    • Position on Earth

    Correct Answer(s)
    A. Time of day
    A. Weather
    A. Date
    A. Position on Earth
    Explanation
    Ancient people looked at the sky for various reasons. They observed the time of day to determine when to perform certain activities or rituals. They also looked at the sky to predict the weather, as it was crucial for their survival and agricultural practices. Additionally, they observed the sky to determine the date and track the passage of time. Lastly, they looked at the sky to understand their position on Earth and navigate their way through land and sea.

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  • 19. 

    _________ is a famous comet that crashed into Jupiter.

    Correct Answer(s)
    Shoemaker-levy
    shoemaker levy
    Explanation
    Shoemaker-Levy is a famous comet that crashed into Jupiter. It was discovered by Carolyn and Eugene Shoemaker and David Levy in 1993. The comet broke into multiple fragments before colliding with Jupiter in July 1994. This event was significant because it was the first observed collision between two solar system objects. The impact left a series of dark scars on Jupiter's atmosphere, and the event provided valuable insights into the dynamics of comets and the formation of impact craters.

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  • Current Version
  • Nov 08, 2024
    Quiz Edited by
    ProProfs Editorial Team
  • Jun 15, 2015
    Quiz Created by
    Bigdskitties

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