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2.16: Introduction to Earth Science- Challenge 3

  • Page ID
    5337
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    1. Telescopes that use lenses to bend light are called ___ telescopes.
    refracting
    2. Sir Isaac Newton created the first ___ telescopes.
    reflecting
    3. In which year did Galileo build the first telescope?
    1608
    4. A wave's ___ measures the number of wavelengths that pass a given point every second.
    frequency
    5. The Whirlpool Galaxy is about 23 million light-years from Earth. The image we see through a telescope on Earth is the galaxy ___.
    as it was 23 million years ago
    6. Visible light waves are composed of ___.
    electric and magnetic fields
    7. The largest artificial satellite, which is designed for human habitation, is ___.
    the International Space Station (ISS)
    8. Which satellite is designed for humans to live in space while conducting scientific research?
    the ISS
    9. Which type of satellite is used for the Global Positioning System (GPS)?
    Navigational

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