microscopes / magnification

Cards (9)

  • the light microscope was invented about 350 years ago it uses light to form magnified images of cells and other tiny objects
  • the highest number the light microscope can produce is x2000
  • the electron microscope was invented in the last century
  • the electron microscope uses electrons to produce magnifications of up to 2 million
  • the higher magnification of electron microscopes allow scientists to see and understand sub-cellular structures
  • to calculate magnification you use magnification = size of image / size of real image
  • to calculate size of real object you use size of real object = size of image / magnification
  • You can use a light microscope to observe draw and label a selection of plant and animal cells.
    1. eyepiece
    2. /
    3. revolving nose piece
    4. objective lens
    5. stage
    6. condenser
    7. illuminator
    8. base
    9. ocular lens
    10. arm
    11. coarse focus
    12. fine focus