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 (D)</p> Signup and view all the answers

What creates electromagnetic fields?

<p>Movement of electric charge (D)</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 (A)</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 (C)</p> Signup and view all the answers

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

<p>Photons (C)</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 (A)</p> Signup and view all the answers

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

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

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

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

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

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

What effect does non-ionizing radiation have on matter?

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

What positive health effect does exposure to sunlight have?

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

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