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2. Order of scientists ideas of the solar system discoveries (eg Galileo) earliest first

  • Copernicus, Galileo, Ptolemy, Herschel
  • Ptolemy, Copernicus, Galileo, Herschel
  • Ptolemy, Galileo and Herschel, Copernicus
  • Herschel, Copernicus, Galileo, Ptolemy

3. Why can we see more stars with a telescope than is we use our naked eye

  • Telescopes collect less light which make it easier to see the planets
  • telescope collects more light than the naked eye so can see dimmer objects
  • it makes thing bigger

4. What is meant by a wave being 1 HZ

  • 1 wave a millisecond
  • 1 wave a second
  • 1 wave an hour
  • 1 wave a minute

5. What is a virtual image

  • there is more than one
  • An image that appears to have only to have come from where the dotted line meets
  • it doesn't exist
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