Physical Science Test Quiz: Trivia!

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Quizzes Created: 11 | Total Attempts: 15,817
Questions: 12 | Attempts: 2,463

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Physical Science Test Quiz: Trivia! - Quiz

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Questions and Answers
  • 1. 

    A transverse wave composed of an oscillating electric field and a magnetic field that oscillates perpendicular to the electric field is called:

    • A.

      Radio Wave

    • B.

      Electric Wave

    • C.

      Magnetic Wave

    • D.

      Electromagnetic Wave

    Correct Answer
    D. Electromagnetic Wave
    Explanation
    An electromagnetic wave is a transverse wave composed of an oscillating electric field and a magnetic field that oscillates perpendicular to the electric field. This type of wave is commonly observed in various forms of radiation, including radio waves, microwaves, infrared waves, visible light, ultraviolet waves, X-rays, and gamma rays. The term "electromagnetic" refers to the close relationship between the electric and magnetic fields, as they are intertwined and propagate through space together. Therefore, an electromagnetic wave is the correct term to describe this type of wave.

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  • 2. 

    The angle of reflection equals the angle of incidence.  This is called the Law of:

    • A.

      Inspection

    • B.

      Relativity

    • C.

      Reflection

    • D.

      Transversity

    Correct Answer
    C. Reflection
    Explanation
    The law of reflection states that the angle of reflection is equal to the angle of incidence. This means that when a ray of light strikes a reflective surface, it will bounce off at the same angle it hit the surface. This law is fundamental in understanding how light behaves when it interacts with mirrors and other reflective surfaces.

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  • 3. 

    Light is made up of individual packets.  Each packet is made up of two perpendicular transverse waves:  one that consists of an oscillating electrical field, and one that is made up of an oscillating magnetic field.

    • A.

      True

    • B.

      False

    Correct Answer
    A. True
    Explanation
    Light is indeed made up of individual packets called photons. Each photon consists of two perpendicular transverse waves: one that consists of an oscillating electrical field and one that is made up of an oscillating magnetic field. This phenomenon is known as electromagnetic radiation and is a fundamental characteristic of light. Therefore, the given answer "True" is correct.

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  • 4. 

    Light is traveling in the air and suddenly hits a glass window.  Does the light speed up, slow down, or continue traveling at the same speed when it enters the glass?

    • A.

      Speeds up

    • B.

      Slows down

    • C.

      Continues traveling at the same speed

    Correct Answer
    B. Slows down
    Explanation
    When light travels from air to glass, it slows down. This is because the speed of light is different in different mediums. In air, light travels at a certain speed, but when it enters the glass, its speed decreases. This change in speed is caused by the change in the refractive index of the medium. The refractive index of glass is higher than that of air, so the light waves bend and slow down as they pass through the glass. Therefore, the correct answer is that the light slows down when it enters the glass.

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  • 5. 

    Which has a higher frequency:  green light or yellow light?

    • A.

      Green Light

    • B.

      Yellow Light

    Correct Answer
    A. Green Light
    Explanation
    Green light has a higher frequency compared to yellow light. Frequency refers to the number of complete cycles of a wave that occur in a given time period. In the visible light spectrum, green light has a shorter wavelength and higher frequency than yellow light. This means that green light waves oscillate more times in a given time period compared to yellow light waves.

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  • 6. 

    Which has longer wavelengths:  ultraviolet rays or radio waves?

    • A.

      Ultraviolet rays

    • B.

      Radio waves

    Correct Answer
    B. Radio waves
    Explanation
    Radio waves have longer wavelengths compared to ultraviolet rays. Wavelength is the distance between two consecutive points in a wave. Radio waves have longer wavelengths, ranging from a few millimeters to several kilometers, while ultraviolet rays have shorter wavelengths, ranging from 10 nanometers to 400 nanometers. This means that radio waves have lower frequencies and less energy compared to ultraviolet rays.

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  • 7. 

    You are on a diving board looking down into a pool.  You see a quarter at the bottom of the pool, about three feet in front of you. Why is the quarter really not 3 feet in front of you?

    • A.

      The quarter is not really 3 feet in front of you because as the light from the quarter leaves the pool water, it bends. This causes a false image.

    • B.

      The quarter is not really 3 feet in front of you because the trajectory of your vision into the water is skewed from the chlorine added to the pool water. This causes a false image.

    • C.

      The quarter is not really 3 feet in front of you because logically you would not jump or dive off a diving board into only 3 feet of water without breaking your neck.

    Correct Answer
    A. The quarter is not really 3 feet in front of you because as the light from the quarter leaves the pool water, it bends. This causes a false image.
    Explanation
    The quarter is not really 3 feet in front of you because as the light from the quarter leaves the pool water, it bends. This causes a false image. When light passes from one medium to another (in this case, from water to air), it changes speed and direction, resulting in the bending of light rays. This phenomenon is known as refraction. As a result, the position of the quarter appears to be closer to the surface of the water than it actually is.

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  • 8. 

    You want to concentrate light coming from a weak light source by focusing it all on a single point. Would you use a converging or diverging lens to do this?

    • A.

      Converging Lens

    • B.

      Diverging Lens

    Correct Answer
    A. Converging Lens
    Explanation
    A converging lens is used to concentrate light coming from a weak light source by focusing it all on a single point. This type of lens is thicker in the middle and causes light rays to converge towards a focal point. By using a converging lens, the light rays can be brought together and concentrated at a single point, resulting in a brighter and more focused light source.

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  • 9. 

    What does the eye do to change its focus?

    • A.

      The eye changes the size of its pupil.

    • B.

      The eye changes the shape of the cornea.

    • C.

      The eye changes the shape of the lens

    • D.

      The eye changes the size of the iris.

    Correct Answer
    C. The eye changes the shape of the lens
    Explanation
    The eye changes the shape of the lens in order to change its focus. The lens is a flexible structure that can adjust its shape to bend incoming light rays. When the lens becomes thicker, it increases its refractive power, allowing it to focus on objects that are closer. On the other hand, when the lens becomes thinner, it decreases its refractive power, enabling it to focus on objects that are farther away. This adjustment in lens shape allows the eye to maintain clear vision at different distances.

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  • 10. 

    For problems 10 - 12, remember that blue + green = cyan, red + blue = magenta, and red + green = yellow. If a computer monitor makes a green dot and then puts a blue dot in the same place, what color will you see?

    • A.

      Blue

    • B.

      Green

    • C.

      Cyan

    • D.

      White

    Correct Answer
    C. Cyan
    Explanation
    When a green dot is placed on a computer monitor and then a blue dot is placed in the same spot, the colors will mix together. According to the given information, green + blue equals cyan. Therefore, the color that will be seen is cyan.

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  • 11. 

    For problems 10 - 12, remember that blue + green = cyan, red + blue = magenta, and red + green = yellow. If cyan and magenta ink is mixed, what color ink will you get?

    • A.

      Blue

    • B.

      Green

    • C.

      Red

    • D.

      White

    Correct Answer
    A. Blue
    Explanation
    When cyan and magenta ink are mixed, the resulting color is blue. This is because according to the given information, blue and green make cyan, and red and blue make magenta. Therefore, when cyan (made from blue and green) and magenta (made from red and blue) are combined, the common color between them is blue.

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  • 12. 

    For problems 10 - 12, remember that blue + green = cyan, red + blue = magenta, and red + green = yellow. If you shine a red light on a yellow shirt, what color will the shirt appear?  Assume the shirt color is done with dyes that use the subtractive primary colors.

    • A.

      Red

    • B.

      Green

    • C.

      Yellow

    • D.

      White

    Correct Answer
    A. Red
    Explanation
    When a red light shines on a yellow shirt, the shirt will appear red. This is because when red light is shone on a yellow object, the yellow object absorbs all the colors except for yellow, which is reflected back to our eyes. Therefore, the shirt will appear red.

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