Ems Recall

23 Questions | Total Attempts: 1250

SettingsSettingsSettings
Ems Recall - Quiz

.


Questions and Answers
  • 1. 
    A group of wavelengths (or) frequencies is known as:
    • A. 

      Group of colours

    • B. 

      Spectrum

    • C. 

      Colour band

    • D. 

      None

  • 2. 
    Electromagnetic radiations waves are:
    • A. 

      Mechanical

    • B. 

      Longitudinal

    • C. 

      Transverse

    • D. 

      Stationary

  • 3. 
    The longest wavelength of the spectrum.
    • A. 

      Radio Waves

    • B. 

      UV Waves

    • C. 

      Visible Light

  • 4. 
    The shortest wavelength of the spectrum.
    • A. 

      Microwaves

    • B. 

      Infrared Waves

    • C. 

      Gamma Rays

  • 5. 
    This type of electromagnetic radiation is the most dangerous to humans: 
    • A. 

      X-rays

    • B. 

      Gamma rays

    • C. 

      Microwaves

    • D. 

      Infrared waves

  • 6. 
    Electromagnetic waves are transverse waves that transfer
    • A. 

      Sound energy

    • B. 

      Photons

    • C. 

      Electrical energy

    • D. 

      Magnets

  • 7. 
    Which of the following is not an example of electromagnetic radiation?
    • A. 

      Dangerous Gamma Rays

    • B. 

      Photons of energy traveling through space

    • C. 

      The sonic boom of a jet

    • D. 

      Wi-fi signals

  • 8. 
    The distance between A and F is the _____________.
    • A. 

      Frequency

    • B. 

      Period

    • C. 

      Amplitude

    • D. 

      Wavelength

  • 9. 
    The amount of energy carried by an electromagnetic wave increases with frequency.  Which of the following groups of waves is listed in order of increasing energy?
    • A. 

      X-rays, visible light, radio waves

    • B. 

      Infrared waves, visible light, radio waves

    • C. 

      Radio waves, visible light, x-rays

  • 10. 
    Which of the following emits infrared radiation(s)?
    • A. 

      Hot iron

    • B. 

      Ice

    • C. 

      Freezing mixture

    • D. 

      Fire

    • E. 

      Sunlight

  • 11. 
    ROY G BIV is what part of the EMS?
    • A. 

      Gamma rays

    • B. 

      Radio Waves

    • C. 

      Visible Light

  • 12. 
    Produced by dying stars, decaying nuclei, and used in killing cancer cells.
    • A. 

      Visible Light

    • B. 

      Infrared Waves

    • C. 

      Gamma Rays

  • 13. 
    How much of the electromagnetic spectrum is visible to just the human eye?
    • A. 

      All of it (radio, microwaves, infrared, visible light, UV, X-rays, gamma rays)

    • B. 

      None of it (no rays)

    • C. 

      Most of it (only radio, infrared, x-rays, gamma rays)

    • D. 

      Only a small part (visible light)

  • 14. 
    This color has the longest wavelength of visible light: 
    • A. 

      Red

    • B. 

      Orange

    • C. 

      Yellow

    • D. 

      Green

    • E. 

      Blue

    • F. 

      Indigo

    • G. 

      Violet

  • 15. 
    What is the Electromagnetic Spectrum?
    • A. 

      The range of EM waves according to their frequencies

    • B. 

      The vibration of electrically charged particles that surround the electric field

    • C. 

      Range of chemical formulas based on nomenclature

  • 16. 
    Visible light is light that humans can see. What is the range of colors in order from short to long wavelength?
    • A. 

      Violet, indigo, green, red, orange

    • B. 

      Red, Orange, Yellow, Green, Blue, Indigo, and Violet

    • C. 

      Violet, indigo, blue, green, yellow, orange, red

  • 17. 
    Light travels in...
    • A. 

      A limo

    • B. 

      Curved lines. If it didn't, we wouldn't be able to see.

    • C. 

      Straight lines

    • D. 

      By bus. It's the easiest, cheapest and most economical way.

    • E. 

      The day time

  • 18. 
    The distance between D and I is the _____________.
    • A. 

      Frequency

    • B. 

      Trough

    • C. 

      Amplitude

    • D. 

      Wavelength

  • 19. 
    A and F are what part of the wave?
    • A. 

      Crests

    • B. 

      Troughs

    • C. 

      Amplitudes

    • D. 

      Wavelength

  • 20. 
    D and I are what part of the wave?
    • A. 

      Crests

    • B. 

      Troughs

    • C. 

      Amplitudes

    • D. 

      Wavelength

  • 21. 
    Which electromagnetic waves are used to kill bacteria?
    • A. 

      Gamma

    • B. 

      X-rays

    • C. 

      UV

    • D. 

      Infrared

  • 22. 
    Which waves on the electromagnetic spectrum are considered not dangerous?
    • A. 

      Radio waves

    • B. 

      Gamma waves

    • C. 

      Infrared waves

    • D. 

      Ultraviolet waves

    • E. 

      Visible light

  • 23. 
    In the Electromagnetic Spectrum, the waves with higher frequencies have __________ energy.
    • A. 

      Higher

    • B. 

      Lower

    • C. 

      No change in in energy they all travel at the speed of light in a vacuum (can't trick me)

Back to Top Back to top