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What is a. Laser?. LASER ?. TABLE OF CONTENTS. What “Laser” Stands for Acronym Definition of Laser Some Uses for Lasers Medical Organizational Chart Military Commercial . Georgia Performance Objectives. Fourth Grade Science current QCC Standards Inquiry 2

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Presentation Transcript
slide1

What is a

Laser?

LASER ?

table of contents
TABLE OF CONTENTS
  • What “Laser” Stands for
    • Acronym
  • Definition of Laser
  • Some Uses for Lasers
    • Medical
      • Organizational Chart
    • Military
    • Commercial
georgia performance objectives
Georgia Performance Objectives
  • Fourth Grade Science current QCC Standards
  • Inquiry
  • 2
  • Topic: Reference SkillsStandard: Uses encyclopedias, science reference magazines, books and other media to obtain information related to science concepts.
  • Physical Science
  • 22
  • Topic: Energy and Its Transformations: Light and ColorStandard: Describes the technological procedures/devices that use light. Selects a topic and uses a variety of media resources to investigate selected topics (laser, optical fiber technology, or infrared devices)
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MISSION OF

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definition of laser
Definition of Laser
  • A device that produces a focused beam of light at a defined wavelength that can vaporize tissue.
uses for lasers
Uses for Lasers
  • Medical
  • Military
  • Commercial
medical uses
Medical Uses
  • In surgery, lasers can be used to operate on small areas without damaging delicate surrounding tissue.
military uses
Military Uses
  • The Saber 203 briefly
  • illuminates an
  • opponent with harmless,
  • low-power laser light which
  • temporarily makes the enemy
  • unable to fight.
  • Artillery
  • Missiles
  • Radar
commercial uses
Commercial Uses

More Information and uses

questions activities
Questions/Activities
  • 1. What does the acronym laser stand for?
  • 2. Who invented the laser?
  • 3. What happens to light to make it become a laser?
  • 4. What are some real world uses of lasers?
  • 5. What is your favorite fact about lasers?
  • 6. If you wee to design a laser, what would you use it for? Describe what it would look like, how heavy it would be, how you would market/sell your product.
  • 7. Which web site was your favorite? Why?
  • 8. Do you think the laser is an important invention? Why or why not?
  • 9. Draw a diagram of a laser based on the drawings and information on holoworld.com
  • 10.After discussing the questions and the answers given, the students will give a ½ page summary on what they learned. The teacher will have the students play bingo based on the facts that they learned in the lesson.
helpful resources
Helpful Resources
  • Title: Schawlow and Townes Invent the LaserURL:http://www.bell-labs.com/history/laser/Annotation: A history page from Bell Laboratories
  • Title: What Is a Laser?URL:http://www.bell-labs.com/history/laser/laser_def.htmlAnnotation: From the Bell Laboratories where the idea for the Laser began, this page provides history and an overview.
  • Title: StructureURL:http://www.chem4kids.com/files/atom_structure.htmlAnnotation: A good site for background in the structure of the atom.
  • Title: HoloworldURL:http://www.holoworld.com/holo/kids.htmlAnnotation: You can find a good illustration on this page.
  • Title: What\'s Cool About LasersURL:http://www.opticalres.com/kidoptx_f.html#LasersAnnotation: Find out more about lasers at this Web site.
  • Title:URL:http://www.thetech.org/exhibits/online/lasers/overview.htmlAnnotation: An excellent overview of the Laser with a note on light and history. Applications of Laser technology are also included.
  • Title: Laser Facts Tracker
  • URL:attach What is a Laser Facts Tracker.doc
  • Annotation: Internet research form with room for students’ responses
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