Basic Questions About Astronomy

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Borisr
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Quizzes Created: 1 | Total Attempts: 671
Questions: 5 | Attempts: 671

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Astronomy 101 Quizzes & Trivia

Questions and Answers
  • 1. 

    How far is the moon from the Earth?

    • A.

      10 000 km

    • B.

      356334 km

    • C.

      25 light years

    Correct Answer
    B. 356334 km
    Explanation
    The correct answer is 356,334 km. This is the average distance between the Earth and the Moon. The Moon is our closest celestial neighbor, and its distance from Earth can vary slightly due to its elliptical orbit. However, on average, it is about 356,334 km away.

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  • 2. 

    How many planets are there in our galaxy?

    • A.

      8

    • B.

      10

    • C.

      13

    Correct Answer
    A. 8
    Explanation
    Saturn, Mercury, Venus. Mars, Jupiter, Uranus, Neptune and Earth

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  • 3. 

    What is the cause of ocean tides?

    • A.

      Gravitational force of planets

    • B.

      Tidal force of the Sun and the Moon

    • C.

      Fluctuation of ocean currents

    Correct Answer
    B. Tidal force of the Sun and the Moon
    Explanation
    The cause of ocean tides is the tidal force of the Sun and the Moon. The gravitational pull of these celestial bodies creates a bulge in the ocean on the side facing them, causing a high tide. As the Earth rotates, different parts of the ocean experience this gravitational pull, resulting in the rise and fall of tides. The Sun's gravitational force also contributes to tides, although to a lesser extent compared to the Moon. The fluctuation of ocean currents and the gravitational force of other planets do not play a significant role in causing tides.

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  • 4. 

    If you fall into a Black Hole, what will happen?

    • A.

      I jump to another time dimension

    • B.

      I will disintegrate into tiny, almost invisible particles

    • C.

      My body will stretch to infinity like spaghetti

    Correct Answer
    C. My body will stretch to infinity like spaghetti
    Explanation
    When an object falls into a black hole, it experiences extreme gravitational forces. These forces cause a phenomenon called spaghettification, where the object is stretched into long, thin strands resembling spaghetti. This occurs because the gravitational pull on different parts of the object is much stronger than on others, leading to a stretching effect. Eventually, the object is torn apart into tiny, almost invisible particles due to the immense gravitational forces. Therefore, if a person falls into a black hole, their body would indeed stretch to infinity like spaghetti.

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  • 5. 

    Why do communication satellites orbit the Earth without going off-course?

    Correct Answer
    Because gravity and covered distance keep them in orbit
    Because they are inside the Earth gravitational field and they travel more horizontally than vertically
    Explanation
    Communication satellites orbit the Earth without going off-course because of two main factors: gravity and covered distance. Gravity pulls the satellites towards the Earth, keeping them in orbit. Additionally, the satellites travel more horizontally than vertically, meaning they maintain a certain distance from the Earth's surface while continuously circling around it. These combined factors ensure that the satellites stay on their intended orbital path and do not deviate off-course.

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