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Intro to Waves quiz

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  • What is the definition of a wave?
    A wave is a disturbance in space that requires a medium to travel through.
  • What is a medium in the context of waves?
    A medium is the material or substance that a wave travels through, such as air, water, or a string.
  • What are the two main types of waves discussed in this lesson?
    The two main types are transverse waves and longitudinal waves.
  • How do particles move in a transverse wave?
    In a transverse wave, particle displacement is perpendicular to the direction of wave motion.
  • How do particles move in a longitudinal wave?
    In a longitudinal wave, particle displacement is parallel to the direction of wave motion.
  • What is the wavelength in a transverse wave?
    Wavelength is the horizontal distance between successive crests or troughs in a transverse wave.
  • What is the wavelength in a longitudinal wave?
    Wavelength is the distance between successive regions of maximum compression in a longitudinal wave.
  • What is amplitude in a transverse wave?
    Amplitude is the height from the equilibrium position (x-axis) to the crest or trough of the wave.
  • Does amplitude matter in longitudinal waves?
    Amplitude does not really matter in longitudinal waves.
  • What is the formula for wave speed?
    Wave speed (V) is given by V = λ × f, where λ is wavelength and f is frequency.
  • How are period and frequency related?
    Period (T) and frequency (f) are inverses of each other: f = 1/T.
  • How do you calculate wavelength if you know wave speed and frequency?
    Wavelength (λ) is calculated by dividing wave speed (V) by frequency (f): λ = V/f.
  • What is the wavelength of a sound wave with speed 343 m/s and frequency 260 Hz?
    The wavelength is 1.32 meters, calculated by λ = 343/260.
  • What is the horizontal distance from crest to crest called?
    It is called the wavelength.
  • What is the time it takes for a wave to complete one cycle called?
    It is called the period (T).