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