physics 2

• Ionizing radiation


  A form of energy that acts by removing electrons from atoms and molecules of materials that include air, water, and living tissue. Ionizing radiation can travel unseen and pass through these materials.
• Non-ionizing radiation


  Includes visible, infrared, and ultraviolet light; microwaves; radio waves; and radio-frequency energy from cell phones
• Radiation is energy that comes from a source and travels through space at the speed of light. This energy has an electric field and a magnetic field associated with it, and has wave-like properties.
• In physics, radiation or dagilap is the emission and transmission of energy in the form of waves or particles through space or through a material medium
• Learning Task 1: "The Boat is Sinking"

  Arrange the following EM waves according to wavelength, energy, frequency
• Learning Task 2: Ionizing or Non-Ionizing Radiation

  Use the board to select images showing different types of radiation categorized into ionizing and non-ionizing radiation
• Guide Questions

  • From the board work what do you think is the effect of too much exposure to cellphone?
  • What will happen if there would be too much exposure to Gamma Ray?
  • Give some ways on how we can prevent to much exposure to UV rays.
• If you are exposed to radiation, you will develop cancer.
• You should keep track of the number of medical x-rays and scans you have received.
• Radiation was discovered during World War II when the atomic bomb was developed.
• Radiation exposure will cause you to glow.
• Cigarettes are a source of radiation exposure.