Astronomy Test Chapter 6

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  • 1/7 Questions

    Which of the following is not a type of electromagnetic wave?

    • Infared
    • Sound
    • X-rays
    • Ultra-violet light
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About This Quiz

This Astronomy Test Chapter 6 evaluates understanding of electromagnetic waves, including their types, speed, and frequency. It covers the electromagnetic spectrum order and the visible light spectrum, essential for students in physics and astronomy.

Electromagnetic Spectrum Quizzes & Trivia

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  • 2. 

    What part of the electromagnetic spectrum can we see?

    • Infrared light

    • Ultraviolet light

    • Visible light

    • All three

    Correct Answer
    A. Visible light
    Explanation
    Visible light is the part of the electromagnetic spectrum that we can see. It consists of the colors that are visible to the human eye, ranging from red to violet. Infrared light and ultraviolet light, on the other hand, are not visible to the naked eye. Infrared light has longer wavelengths than visible light, and ultraviolet light has shorter wavelengths. Therefore, the correct answer is visible light.

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  • 3. 

    For a wave, the number of cycles or vibrations per second is called

    • Amplitude

    • Frequency

    • Period

    • Wavelength

    Correct Answer
    A. Frequency
    Explanation
    Frequency refers to the number of cycles or vibrations per second in a wave. It represents the rate at which the wave oscillates or repeats itself. Amplitude, on the other hand, refers to the maximum displacement of a wave from its equilibrium position. Period is the time taken for one complete cycle of a wave, while wavelength is the distance between two consecutive points in a wave that are in phase. Therefore, frequency is the correct answer as it specifically relates to the number of cycles or vibrations per second in a wave.

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  • 4. 

    Which of the following is the correct sequence of the electromagnetic spectrum in order of decreasing frequency?

    • Gamma ray, x-ray, infared, visible, ultraviolet, microwaves, radio waves

    • Gamma ray, x-ray, ultraviolet, visible, infrared, microwaves, radio waves

    • X-ray, gamma ray, infrared, visible, ultraviolet, microwaves, radio waves

    • X-ray, gamma ray, ultraviolet, visible, infrared, radio waves, microwaves

    Correct Answer
    A. Gamma ray, x-ray, ultraviolet, visible, infrared, microwaves, radio waves
    Explanation
    The electromagnetic spectrum is a range of electromagnetic waves that vary in frequency and wavelength. The correct sequence of the electromagnetic spectrum in order of decreasing frequency is gamma ray, x-ray, ultraviolet, visible, infrared, microwaves, and radio waves. Gamma rays have the highest frequency, followed by x-rays, ultraviolet, visible light, infrared, microwaves, and radio waves with the lowest frequency.

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  • 5. 

    Which of the following is the correct sequence of the visible light spectrum in order of decreasing frequency?

    • Violet, indigo, orange, blue, yellow, red

    • Violet, indigo, yellow, blue, orange red

    • Violet, indigo, blue, yellow, orange, red

    • Blue, violet, indigo, yellow, orange, red

    Correct Answer
    A. Violet, indigo, blue, yellow, orange, red
    Explanation
    The visible light spectrum consists of different colors arranged in order of decreasing frequency. Violet has the highest frequency, followed by indigo, blue, yellow, orange, and red. This sequence is correct because it follows the pattern of colors in the visible light spectrum, with each color having a lower frequency than the one before it.

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  • 6. 

    The speed of electromagnetic waves

    • Differs depending on the frequency

    • Increases with higher frequency

    • Drecreases with higher frequency

    • Is the speed of light, regardless of the frequency

    Correct Answer
    A. Is the speed of light, regardless of the frequency
    Explanation
    The speed of electromagnetic waves is the same regardless of the frequency. This means that whether the wave has a high or low frequency, it will still travel at the speed of light.

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  • 7. 

    Of the following tyoes of light, which has the highest frequency?

    • Radio waves

    • Infrared

    • Microwaves

    • Visible light

    Correct Answer
    A. Visible light
    Explanation
    Visible light has the highest frequency among the given types of light. This is because the frequency of light is directly proportional to its energy. As we move from radio waves to visible light, the frequency increases, indicating higher energy levels. Visible light falls within the range of the electromagnetic spectrum that is detectable by the human eye, and it is responsible for the colors we perceive.

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  • Mar 21, 2023
    Quiz Edited by
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  • Dec 05, 2011
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