Physics Topic 1

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1. How did Galilo prove that the geocentric model was wrong?

  • He read up on Copernicus books and started public speaking his therorys
  • 1610.He observed jupiter and saw what he believed were stars but later found out when the stars had moved (but stayed with Jupiter) and a 4th 'star' came that they were moons.
  • He looked through a telescope and saw the sun in the middle of the solar system
  • Galilo had a dream in 1610 and that then proved that it was fake.
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2. What are the characteristics of a Converging lens?

  • Its strong and shiny.
  • Its convex and it bulges outwards.
  • Its concave and it bulges inwards.

3. What are lenses usually made from?

  • Iron or Steel.
  • Plastic or Glass.
  • Copper or Glass.

4. How does a Coverging lens work?

  • It makes parallel rays of light to move together to a focus.
  • It enables scientists to work harder.
  • Its makes doctors see organs more closely.

5. What does Wavelength measure?

  • The distance between one peak to the next.
  • The distance between the amplitude and the wave.
  • How fast the speed is.
  • Nothing.


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