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6. What type of waves are electromagnetic waves?

  • Sound.
  • Tranverse.
  • Longitudinal.
  • Seismic.

7. The amplitude of a wave is...

  • The maximum distance of a point on the wave from its rest position.
  • How fast a wave travels.
  • The distance from a point on one wave to the same point on the next wave
  • The number of waves passing a point each second.

8. What is the geocentric model?

  • The idea that planets moved in orbits
  • A model by Nicholaus Copernicus
  • The idea that the earth is the center of everything.
  • The idea that the sun is the center of everything.