Light Quiz Flashcards
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Questions and Answers

Which color has the longest wavelength?

  • Green
  • Violet
  • Blue
  • Red (correct)

    • Which color has the shortest wavelength?

  • Violet (correct)
  • Blue
  • Green
  • Red

    • Why are objects their respective colors?

    An object absorbs all colors of the rainbow except for the color that we see.

    What are mechanical waves?

    <p>Waves that require a medium to travel through.</p> Signup and view all the answers

    What are electromagnetic waves?

    <p>Waves that travel through a vacuum, which are produced by the vibration of charged particles.</p> Signup and view all the answers

    What is the wave crest?

    <p>Highest point of a wave.</p> Signup and view all the answers

    What is the amplitude of a wave?

    <p>The distance between the middle and crest or trough of a wave.</p> Signup and view all the answers

    What is a wave trough?

    <p>Lowest point of a wave.</p> Signup and view all the answers

    Which color wave has the greatest energy?

    <p>Violet has the greatest.</p> Signup and view all the answers

    Which color wave has the lowest energy?

    <p>Red has the lowest.</p> Signup and view all the answers

    Which color wave has the highest frequency?

    <p>Violet has the highest.</p> Signup and view all the answers

    Which color wave has the lowest frequency?

    <p>Red has the lowest.</p> Signup and view all the answers

    Which color waves have the longest wavelength?

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

    Which color waves have the shortest wavelength?

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

    What is the relationship between energy and frequency?

    <p>The higher the energy the higher the frequency.</p> Signup and view all the answers

    What is the relationship between energy and wavelength?

    <p>The higher the energy the shorter the wavelength.</p> Signup and view all the answers

    What is the relationship between frequency and wavelength?

    <p>The higher the frequency the shorter the wavelength.</p> Signup and view all the answers

    Which color refracts the most?

    <p>Violet does the most.</p> Signup and view all the answers

    Which color refracts the least?

    <p>Red does the least.</p> Signup and view all the answers

    Why does violet refract the least?

    <p>It has the shortest wavelength and a higher frequency.</p> Signup and view all the answers

    Why does red refract the least?

    <p>It has the longest wavelength and a lower frequency.</p> Signup and view all the answers

    Compare waves to the left of the electromagnetic spectrum with visible light.

    <p>They have shorter wavelengths, higher frequencies, higher energy.</p> Signup and view all the answers

    Compare waves to the right of the electromagnetic spectrum with visible light.

    <p>They have longer wavelengths, lower frequencies, lower energy.</p> Signup and view all the answers

    List the waves in order from the longest wavelength to the shortest wavelength.

    <p>1.Radio 2.Microwave 3.Infrared 4.Visible Light 5.Ultra Violet 6.Gamma Rays</p> Signup and view all the answers

    List the waves in order from the shortest wavelength to the longest.

    <p>1.Gamma Rays 2.Ultra Violet 3.Visible Light 4.Infrared 5.Microwave 6.Radio</p> Signup and view all the answers

    List colors from highest to lowest frequency.

    <p>1.Red 2.Orange 3.Yellow 4.Green 5.Blue 6.Violet</p> Signup and view all the answers

    List colors from lowest to highest frequency.

    <p>1.Violet 2.Blue 3.Green 4.Yellow 5.Orange 6.Red</p> Signup and view all the answers

    List colors from longest to shortest wavelength.

    <p>1.Red 2.Orange 3.Yellow 4.Green 5.Blue 6.Violet</p> Signup and view all the answers

    What does refraction mean?

    <p>The change in direction of a wave passing from one medium to another.</p> Signup and view all the answers

    List the colors from shortest to longest wavelength.

    <p>1.Violet 2.Blue 3.Green 4.Yellow 5.Orange 6.Red</p> Signup and view all the answers

    What does index of refraction mean?

    <p>How fast light travels through a material.</p> Signup and view all the answers

    How does the index of refraction affect light as it goes from gas to a liquid?

    <p>The speed slows down and bends more.</p> Signup and view all the answers

    How does the index of refraction affect light as it goes from liquid back to a gas?

    <p>The speed increases and bends less.</p> Signup and view all the answers

    What is reflection?

    <p>When light bounces off an object.</p> Signup and view all the answers

    What is dispersion?

    <p>The spreading of white light when it disperses into all the colors of the spectrum.</p> Signup and view all the answers

    What is scattering?

    <p>When light passes through an imperfect medium.</p> Signup and view all the answers

    What is wavelength?

    <p>Distance between two wave troughs or crests.</p> Signup and view all the answers

    Which color wave has a longer wavelength? Red, green, or blue?

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

    Which color wave has the highest frequency? Red, green, or blue?

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

    Which color wave has the highest energy? Red, green, or blue?

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

    Which wave has a longer wavelength? Radio, visible, ultraviolet, or gamma?

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

    Which wave has a higher frequency? Radio, visible, ultraviolet, or gamma?

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

    Which wavelengths are longer than visible light? Gamma, Ultraviolet, or radio?

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

    Study Notes

    Wavelengths of Light

    • Red light possesses the longest wavelength in the visible spectrum.
    • Violet light has the shortest wavelength among visible colors.

    Color Perception

    • Objects appear a certain color by absorbing all colors except the one they reflect.
    • The color perceived is based on the light that reflects off an object.

    Types of Waves

    • Mechanical waves require a medium for propagation (e.g., sound waves).
    • Electromagnetic waves can travel through a vacuum and are produced by vibrating charged particles.

    Wave Characteristics

    • The wave crest is the highest point of a wave.
    • The amplitude measures the distance from the midline to the crest or trough.
    • A wave trough refers to the lowest point of a wave.

    Energy and Color

    • Violet light has the highest energy and frequency, while red has the lowest.
    • Energy and frequency correlate directly; higher energy means higher frequency.
    • Energy and wavelength are inversely related; higher energy results in shorter wavelengths.
    • Frequency and wavelength have an inverse relationship; higher frequency corresponds to shorter wavelength.

    Refraction

    • Violet light refracts the most due to its shorter wavelength and higher frequency.
    • Red light refracts the least because of its longer wavelength and lower frequency.

    Electromagnetic Spectrum

    • Waves to the left of the visible light spectrum (e.g., radio, microwaves) have shorter wavelengths, higher frequencies, and higher energy.
    • Waves to the right (e.g., infrared, ultraviolet) have longer wavelengths, lower frequencies, and lower energy.

    Order of Waves

    • Longest to Shortest Wavelength: Radio, Microwave, Infrared, Visible Light, Ultraviolet, Gamma Rays.
    • Shortest to Longest Wavelength: Gamma Rays, Ultraviolet, Visible Light, Infrared, Microwave, Radio.

    Color Frequency Order

    • From highest to lowest frequency: Violet, Blue, Green, Yellow, Orange, Red.
    • From lowest to highest frequency: Red, Orange, Yellow, Green, Blue, Violet.
    • Wavelength comparison: Violet < Blue < Green < Yellow < Orange < Red.

    Refraction and Medium

    • Refraction occurs when a wave changes direction passing from one medium to another.
    • As light travels from gas to liquid, its speed decreases and bends more.
    • When moving from liquid back to gas, light speed increases and bends less.

    Light Phenomena

    • Reflection occurs when light bounces off an object.
    • Dispersion explains the spreading of white light into the spectrum's colors.
    • Scattering happens when light passes through an imperfect medium.

    Additional Wave Properties

    • Wavelength is defined as the distance between two consecutive wave troughs or crests.
    • Comparisons between colors: Red has a longer wavelength than green and blue; Blue has higher frequency and energy than red.

    Important Formulas

    • The wavelength can be calculated using the formula: wavelength = speed of light / frequency.

    Wave Comparisons

    • Radio waves have a longer wavelength than visible light, while gamma waves have a higher frequency than visible light.
    • Radio waves are longer than both ultraviolet and gamma wavelengths.

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    Description

    Test your knowledge about the properties of light with these flashcards. Explore concepts like wavelength, color perception, and how objects exhibit their colors. This quiz offers a fun way to learn about the science of light.

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