Biological Effects of Electromagnetic Fields Quiz
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Questions and Answers

What type of field exists whenever electric charges are present?

  • Force field
  • Magnetic field
  • Electric field (correct)
  • Electromagnetic field
  • What stands for the force exerted on charges when they move along the line between the charges?

  • Force field
  • Electromagnetic field
  • Electric current
  • Magnetic field (correct)
  • Which type of field lines always point away from a positive charge and towards a negative charge?

  • Electromagnetic field
  • Magnetic field
  • Force field
  • Electric field (correct)
  • How are magnetic fields arranged around an electric current?

    <p>In a circular fashion</p> Signup and view all the answers

    What creates electromagnetic fields?

    <p>Movement of electric charge</p> Signup and view all the answers

    What kind of force exists between charges that act on a line between the charges?

    <p>Electric force</p> Signup and view all the answers

    What are EM waves created as a result of?

    <p>Vibrations between an electric field and a magnetic field</p> Signup and view all the answers

    What are the small packets of energy in an EM wave called?

    <p>Photons</p> Signup and view all the answers

    What is the relationship between frequency (f), wavelength (λ), and the speed of light (c)?

    <p>f x λ = c</p> Signup and view all the answers

    Which of the following is a natural source of electromagnetic fields?

    <p>The Earth’s Magnetic Field</p> Signup and view all the answers

    Which type of radiation has high enough energy to ionize particles of matter?

    <p>Gamma rays</p> Signup and view all the answers

    What are the two most important health-related characteristics of EM fields?

    <p>Field strength and frequency</p> Signup and view all the answers

    What effect does non-ionizing radiation have on matter?

    <p>Causing significant heating</p> Signup and view all the answers

    What positive health effect does exposure to sunlight have?

    <p>Leads to vitamin D production</p> Signup and view all the answers

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