Other questions in this quiz

2. Briefly explain Wegener's theory of continental drift.

  • About 1 million years ago there had been ONE continent (Pangaea) and one day it combusted and broke off into mini islands.
  • About 300 million years ago there had been ONE continent (Pangaea) and over time it broke up into smaller chunks and spread out.
  • About 250 million years ago there had been TWO continents (Pangaea and Samantes) and over time it's spread out.
  • About 300 million years ago there had been ONE continent (Panantas) and over time it melted into the ocean and created other islands.

3. What is a light year?

  • How much light is produced in a year.
  • The distance that light travels in one minute times 360.
  • The distance that light travels in a vacuum (like space) in one year.
  • The distance of light in space.

4. What is the formula that relates wave speed, frequency, and wavelength?

  • Speed= Frequency + Wavelength
  • Speed= Frequency x Wavelength
  • Speed= Frequency / Wavelength
  • Speed= Frequency - Wavelength

5. Explain the evidence that shows that the universe is expanding.

  • Yellow shift can be seen, and we know that yellow shift occurs when objects in space are moving away.
  • Purple haze can be seen, and we know that purple haze occurs when objects in space are moving away.
  • Red shift can be seen, and we know that red shift occurs when objects in space are moving away.
  • Blue shift can be seen, and we know that blue shift occurs when objects in space are moving away.

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