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Light grade 8 science

Quiz by Christina Arias

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6 questions
Show answers
  • Q1
    What is the primary source of light on Earth?
    Fireflies
    The Moon
    Stars
    The Sun
    30s
  • Q2
    What is the path that light travels in a straight line called?
    Beam
    Wave
    Particle
    Ray
    30s
  • Q3
    Which of the following factors affects the speed of sound in a medium?
    Density
    Pressure
    Color
    Temperature
    30s
  • Q4
    What is the unit used to measure the frequency of a sound wave?
    Watts
    Hertz
    Meters
    Kelvin
    30s
  • Q5
    What is the term used to describe the highness or lowness of a sound?
    Amplitude
    Pitch
    Frequency
    Echo
    30s
  • Q6
    What is the wavelength of a sound wave?
    The loudness of the sound wave
    The time it takes for the sound wave to travel
    The distance between two consecutive compressions or rarefactions
    The frequency of the sound wave
    30s

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