Physics 1 topic 1

Solar system, waves, reflection & refraction, lenses, simple & reflecting telescopes

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1. What did Galileos observations prove?

  • Nothing
  • That the geocentric model was wrong because not everthing was in orbit around earth
  • That the heliocentric model was wrong because not everthing was in orbit around the sun
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2. 'An incident ray parrallel to the axis will pass throught the focal point when its reflected'

  • True
  • False

3. What happens when a wave hits a boundary 'face on'?

  • It slows down and refracts
  • It slows down and maintains the same direction
  • It speeds up and maintains the same direction
  • It speeds up and refracts

4. What does refraction mean?

  • Bending
  • Changing direction
  • Reflection

5. Where is the real image formed in a reflecting telescope?

  • Behind the small concave mirror
  • Behind the large concave mirror
  • Infront of the small concave mirror

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