2023-01-22T05:47:50+03:00[Europe/Moscow] en true <p><strong>Electromagnetic spectrum</strong></p>, <p>List the categories of light from low energy to high energy</p>, <p><strong>Electromagnetic waves</strong> are _____ waves because the oscillating electric and magnetic field vectors are _____ to the direction of propagation</p>, <p>With electric and magnetic fields, each oscillating field causes oscillations in the other field completely independent of _____. This means that electromagnetic waves can _____.</p>, <p><strong>Electromagnetic waves</strong></p>, <p>The electric field and the magnetic field are _____ to each other.</p>, <p>Wavelength of radio waves</p>, <p>Wavelength of microwaves</p>, <p>Wavelength of infrared</p>, <p>Wavelength of visible light</p>, <p>Wavelength of ultraviolet</p>, <p>Wavelength of x-rays</p>, <p>Wavelength of gamma rays</p>, <p>In a vacuum, all electromagnetic waves travel at the same speed, called the <strong>_____</strong>.</p>, <p>Speed of light in a vacuum</p>, <p>To a first approximation—and for the purposes of all MCAT-related equations—electromagnetic waves travel in air at _____.</p>, <p>Electromagnetic wave equation</p>, <p>The only part of the spectrum that is perceived as light by the human eye is the <strong>_____.</strong></p>, <p>Violet wavelength</p>, <p>Red wavelength</p>, <p>Light that contains all the colors in equal intensity is perceived as _____.</p>, <p>The color of an object that does not emit its own light is dependent on _____.</p>, <p><strong>Blackbody</strong></p> flashcards
MCAT Physics and Math 8.1: Electromagnetic Spectrum

MCAT Physics and Math 8.1: Electromagnetic Spectrum

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  • Electromagnetic spectrum

    The range of frequencies (the spectrum) of electromagnetic radiation and their respective wavelengths and photon energies.

    The range of frequencies (the spectrum) of electromagnetic radiation and their respective wavelengths and photon energies.

  • List the categories of light from low energy to high energy

    radio waves, microwaves, infrared, visible light, ultraviolet, x-rays, gamma rays

  • Electromagnetic waves are _____ waves because the oscillating electric and magnetic field vectors are _____ to the direction of propagation

    transverseperpendicular

    transverse

    perpendicular

  • With electric and magnetic fields, each oscillating field causes oscillations in the other field completely independent of _____. This means that electromagnetic waves can _____.

    matter

    travel through a vacuum

  • Electromagnetic waves

    Classically, electromagnetic radiation consists of electromagnetic waves, which are synchronized oscillations of electric and magnetic fields.

  • The electric field and the magnetic field are _____ to each other.

    perpendicular

    Note: this is true in In homogeneous, isotropic media

  • Wavelength of radio waves

    109–1 m

  • Wavelength of microwaves

    1 m–1 mm

  • Wavelength of infrared

    1 mm–700 nm

  • Wavelength of visible light

    700–400 nm

    (more accurately, about 380 to about 750 nanometers)

  • Wavelength of ultraviolet

    400–50 nm

  • Wavelength of x-rays

    50–10–2 nm

  • Wavelength of gamma rays

    less than 10–2 nm

  • In a vacuum, all electromagnetic waves travel at the same speed, called the _____.

    speed of light

  • Speed of light in a vacuum

  • To a first approximation—and for the purposes of all MCAT-related equations—electromagnetic waves travel in air at _____.

  • Electromagnetic wave equation

    c = fλ

    c is the speed of light in a vacuum and, to a first approximation, also in air

    f is the frequency

    λ is the wavelength

  • The only part of the spectrum that is perceived as light by the human eye is the _____.

    visible region

  • Violet wavelength

    ~400 nm

  • Red wavelength

    ~700 nm

  • Light that contains all the colors in equal intensity is perceived as _____.

    white

  • The color of an object that does not emit its own light is dependent on _____.

    the color of light that it reflects

  • Blackbody

    The term blackbody refers to an ideal absorber of all wavelengths of light, which would appear completely black if it were at a lower temperature than its surroundings.