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Light faking it
Light faking it
Light faking it
Light faking it
Light faking it
Light faking it
Light faking it
Light faking it
Light faking it
Light faking it
Light faking it
Light faking it
Light faking it
Light faking it
Light faking it
Light faking it
Light faking it
Light faking it
Light faking it
Light faking it
Light faking it
Light faking it
Light faking it
Light faking it
Light faking it
Light faking it
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Light faking it

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Transcript

  • 1. Light Stop Faking It!
  • 2. BY: ARCHIL X-A NIHAL X-A KEVIN X-B PARTH X-C LIGHT- A SOURCE TO LIVE
  • 3.  
  • 4. Strand: Force, Motion, and Energy
    • Basic characteristics of white light. Key concepts include:
      • The visible spectrum, light waves, reflection, refraction, diffraction, opaque, transparent, translucent;
      • Optical tools (eyeglasses, lenses, flashlight, camera, kaleidoscope, binoculars, microscope light boxes, telescope, prism, spectroscope, mirrors); and
      • Historical contributions in light
  • 5. Essential Knowledge, Skills, and Processes
    • Explain the relationships between wavelength and the color of light. Name the colors of the visible spectrum.
    • VIBGYOR
  • 6. Vocabulary
    • Visible spectrum (visible light): a combination of several different wavelengths of light traveling together. It is part of the Electromagnetic Spectrum.
  • 7. Essential Knowledge, Skills, and Processes
    • Diagram and label a representation of a light wave (wavelength, peak, trough)
  • 8. Vocabulary
    • Waves: a disturbance which carries energy and that travels away from the starting point.
    • Wavelength: the distance between one crest of a wave and the next crest (distance between compressions); red is longest and violet is shortest
    • Peak: the highest point of a light wave
    • Trough: the lowest point of a light wave
    • Frequency: the number of waves (light or sound) produced in a given unit of time, such as a second
  • 9. Essential Knowledge, Skills, and Processes
    • Compare and contrast reflection and refraction
    Reflection Refraction
  • 10. Vocabulary
    • Reflection: the bouncing of light from a surface
    • Refraction: the bending of light as it passes through one material to another
  • 11. Essential Knowledge, Skills, and Processes
    • Design an investigation to determine what happens to light as it passes through a convex lens. Describe the results.
    A convex lens causes light to converge, or focus, producing an image that is smaller than the original object.
  • 12. Essential Knowledge, Skills, and Processes
    • To investigate and determine what happens to light as it passes through a concave lens.
    A concave lens causes light to diverge, or spread out, producing a larger image than the original.
  • 13. Essential Knowledge, Skills, and Processes
    • Identify some common optical tools, and describe whether each has lenses, mirrors, and/or prisms in it. These should include:
      • eyeglasses
      • flashlights
      • cameras
      • binoculars
      • microscopes
  • 14. Essential Knowledge, Skills, and Processes
    • Eyeglasses: have lenses
    c. Hyperopia (farsightedness) a. Normal eye b. Myopia (nearsightedness) Corrected with concave lens Corrected with convex lens No correction needed
  • 15. Essential Knowledge, Skills, and Processes
    • Flashlight: has lenses and a mirror
  • 16. Essential Knowledge, Skills, and Processes
    • Cameras: have lenses, mirrors, and a prism
  • 17. Essential Knowledge, Skills, and Processes
    • Binoculars: have lenses and prisms
  • 18. Essential Knowledge, Skills, and Processes
    • Microscope: has lenses
  • 19. Essential Knowledge, Skills, and Processes
    • Explain the terms transparent, translucent, and opaque, and give an example of each.
    Plastic wrap Wax paper Aluminum Foil Transparent Translucent Opaque
  • 20. Vocabulary
    • Transparent: materials that allow all light to pass through
    • Translucent: letting light through but scattering it
    • Opaque: materials that do not let light through
    • Transmit: to send (as in sound or light). It also means light passing through an object.
  • 21. Essential Knowledge, Skills, and Processes
    • Analyze the effects of a prism on white light and describe why this occurs. Explain why a rainbow occurs.
  • 22. Essential Knowledge, Skills, and Processes
    • Describe the contributions of these scientists in creating and using optical tools:
      • Galileo Galilei
      • Robert Hooke
      • Anton van Leeuwenhoek
      • Isaac Newton
  • 23. Galileo Galilei
    • Italian
    • Lived from 1564-1642
    • Developed the refracting telescope
    • Developed the first known example of the microscope
  • 24. Robert Hooke
    • English
    • Lived from 1635-1703
    • Devised the compound microscope and illumination system
    • Discovered plant cells
    • Examined fossils with a microscope
  • 25. Anton van Leeuwenhoek
    • Dutch; born in Holland
    • Lived 1632-1723
    • Made over 500 simple microscopes
    • Discovered bacteria, free-living and parasitic microscopic protists
  • 26. Isaac Newton
    • English
    • Lived from 1643-1727
    • Discovered that white light was not a simple entity, but splits into a range of colors
    • When he passed white light through a glass prism, he noted that a spectrum of light was formed; particle theory of light
    • Reflecting telescope

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