The Nature Of Light

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| By Agsmith
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Agsmith
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Quizzes Created: 2 | Total Attempts: 5,145
Questions: 7 | Attempts: 934

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Nature Of Light Quizzes & Trivia

This quiz will allow students to demonstrate understanding of what light is, how the electromagnetic spectrum, interactions of light waves, and how light affects color.


Questions and Answers
  • 1. 

    What is light?

    • A.

      Light is a type of energy that moves like a longitudinal wave.

    • B.

      Light is a type of energy that travels as a transverse wave.

    Correct Answer
    B. Light is a type of energy that travels as a transverse wave.
    Explanation
    Light is a type of energy that travels as a transverse wave. This means that the particles of light move perpendicular to the direction of the wave. This is evident in phenomena such as diffraction and polarization, where the behavior of light can only be explained if it is considered a transverse wave. Additionally, the wave nature of light is supported by the fact that it can undergo interference and exhibit properties like wavelength and frequency. Therefore, light is best described as a transverse wave rather than a longitudinal wave.

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  • 2. 

    ______________ light is light that human's can't see.

    • A.

      Visible

    • B.

      Ultraviolet

    Correct Answer
    B. Ultraviolet
    Explanation
    Ultraviolet light is light that humans cannot see. It falls within the electromagnetic spectrum, just beyond the violet end of the visible light spectrum. Although invisible to the naked eye, ultraviolet light has shorter wavelengths and higher energy than visible light. It is commonly associated with the sun's rays and can cause sunburn and damage to the skin. Ultraviolet light is also used in various applications, such as sterilization, fluorescent lighting, and detecting counterfeit money.

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  • 3. 

    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

    Correct Answer
    A. The range of EM waves according to their frequencies
    Explanation
    The electromagnetic spectrum refers to the range of electromagnetic waves, including radio waves, microwaves, infrared, visible light, ultraviolet, X-rays, and gamma rays. These waves differ in frequency and wavelength. Therefore, the correct answer states that the electromagnetic spectrum is the range of EM waves according to their frequencies.

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  • 4. 

    The Radio uses AM waves because it holds more _________________.

    • A.

      Information

    • B.

      Pictures

    Correct Answer
    A. Information
    Explanation
    The radio uses AM waves because it holds more information. AM (Amplitude Modulation) is a method of transmitting signals by varying the amplitude of the carrier wave. This modulation technique allows for the encoding of audio signals, such as speech or music, onto the carrier wave. AM waves have a wider bandwidth compared to FM (Frequency Modulation) waves, which means they can carry more information. Therefore, AM waves are commonly used in radio broadcasting to transmit a wide range of audio content.

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  • 5. 

    Infrared waves are waves that are tranmitted by the ______________.

    • A.

      Water

    • B.

      Sun

    Correct Answer
    B. Sun
    Explanation
    Infrared waves are waves that are transmitted by the sun. This is because the sun emits a wide range of electromagnetic waves, including infrared waves. Infrared waves have longer wavelengths than visible light, and they are not visible to the human eye. However, they can be detected and measured using special instruments. Infrared waves are important for various applications, such as thermal imaging, remote sensing, and communication.

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  • 6. 

    _________________ are when light ot other Em Waves bounce off an object.

    • A.

      Reflections

    • B.

      Absorption

    Correct Answer
    A. Reflections
    Explanation
    Reflections occur when light or other electromagnetic waves bounce off an object. This phenomenon is commonly observed when light hits a smooth surface such as a mirror or a still body of water. The incident light waves strike the surface and are redirected, or reflected, at the same angle as the angle of incidence. This is why we are able to see our reflection in a mirror or see objects around us. Reflections play a crucial role in our everyday lives, allowing us to see the world around us and creating optical illusions.

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  • 7. 

    There are 2 types of reflections.  Which one describes that light reflects off all points at the same angle because of a smooth surface.

    • A.

      Diffuse Reflection

    • B.

      Regular Reflection

    Correct Answer
    B. Regular Reflection
    Explanation
    Regular reflection describes the phenomenon where light reflects off all points at the same angle due to a smooth surface. This type of reflection occurs when light hits a smooth surface, such as a mirror, and bounces off in a predictable manner, following the law of reflection. The angle of incidence is equal to the angle of reflection, resulting in a clear and focused reflection.

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