Science Chapter 2: The Earth and The Universe
16 Questions
0 Views

Choose a study mode

Play Quiz
Study Flashcards
Spaced Repetition
Chat to lesson

Podcast

Play an AI-generated podcast conversation about this lesson

Questions and Answers

What was the ancient Mesopotamian civilization's belief about the Earth's shape?

  • A triangular pyramid
  • A cylinder
  • A sphere
  • A flat plate (correct)
  • Who was the Greek mathematician who proved that the Earth is round?

  • Copernicus
  • Aristotle
  • Ptolemy
  • Eratosthenes (correct)
  • What did Eratosthenes observe about the sun's rays in Alexandria?

  • They fell perpendicularly
  • They were parallel to each other
  • They were vertical
  • They were at an angle of 7.2 degrees (correct)
  • What was the prevailing theory of the universe before Eratosthenes' discovery?

    <p>The Earth is the center of the universe</p> Signup and view all the answers

    What did Aristotle propose about the movement of celestial bodies?

    <p>They revolved around the Earth</p> Signup and view all the answers

    What was Ptolemy's contribution to the understanding of the universe?

    <p>He proposed that the Earth is the center of the universe</p> Signup and view all the answers

    What did Eratosthenes measure accurately using his observations?

    <p>The radius of the Earth</p> Signup and view all the answers

    What was the ancient people's initial belief about the shape of the Earth?

    <p>It was flat</p> Signup and view all the answers

    What did people of the Earth believe in for almost two thousand years?

    <p>That the Earth was the center of the universe</p> Signup and view all the answers

    What was peculiar about the movement of the planets in the sky?

    <p>They paused and moved in the opposite direction</p> Signup and view all the answers

    What did Copernicus propose in his book in 1544?

    <p>That the Earth and other planets revolved around the Sun</p> Signup and view all the answers

    What happened to Copernicus' book after his death?

    <p>It was published again almost 100 years later</p> Signup and view all the answers

    Who supported Copernicus' theory after observing the sky with a telescope?

    <p>Galileo</p> Signup and view all the answers

    Why did the Catholic Church get furious with Galileo?

    <p>Because his theory contradicted their theological beliefs</p> Signup and view all the answers

    What did the Catholic Church do to Galileo after he supported Copernicus' theory?

    <p>They put him on trial and kept him under house arrest</p> Signup and view all the answers

    How many planets are mentioned in the text as revolving around the Sun?

    <p>8</p> Signup and view all the answers

    Study Notes

    Evolution of Cosmology

    • In ancient times, people believed in a flat Earth with a bowl-shaped sky, clouds, moon, sun, and stars revolving around it.
    • The ancient Mesopotamian civilization believed in a flat Earth floating on a vast ocean, covered by a round sky.
    • In 240 BC, Eratosthenes observed that the sun's rays fell at 7.2 degrees 800 kilometers away from Alexandria, leading him to conclude that the Earth is round.
    • Eratosthenes accurately measured the Earth's radius by comparing the difference of the fallen angle and the distance between them.

    Geocentric Model

    • Aristotle and Ptolemy proposed the geocentric model, where the Earth is the center of the universe, and all planets, stars, moon, and sun revolve around it.
    • This model was widely accepted for nearly 2000 years, supported by religious texts and perceived natural explanations.

    Heliocentric Model

    • Copernicus wrote a book in 1444 proposing the heliocentric model, where the Earth and other planets revolve around the sun.
    • Copernicus' theory was initially not widely accepted, but it was later published again and gained popularity among scientists.
    • Galileo supported Copernicus' theory, observing the planets with a telescope, and confirmed that they revolve around the sun.
    • The Catholic Church opposed Galileo's views, contradicting their theological beliefs, and put him on trial.

    The Solar System

    • The Sun is at the center of the solar system, with eight planets orbiting around it: Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, and Neptune.
    • The relative sizes of the planets can be observed in relation to the Sun.

    Studying That Suits You

    Use AI to generate personalized quizzes and flashcards to suit your learning preferences.

    Quiz Team

    Description

    Explore the evolution of cosmology, the creation of the solar system, and constellations, as well as the prevailing superstition of astrology in this chapter.

    More Like This

    Estimating Distances in Space
    10 questions
    Branches of Astronomy
    8 questions

    Branches of Astronomy

    CleanestJasper3250 avatar
    CleanestJasper3250
    Introduction to Astronomy
    10 questions
    Use Quizgecko on...
    Browser
    Browser