Waves in a solid

    Cards (16)

    • What apparatus is used to measure waves in a solid?
      A string attached to a vibration generator
    • What keeps the string taut in the apparatus?
      A hanging mass
    • What does the signal generator do?
      Changes the frequency of vibration of the string
    • What is a standing wave?
      A wave pattern formed by resonance
    • How do you measure the wavelength of a standing wave?
      Measure total length from bridge to generator
    • How do you convert 21.5 centimeters to meters?
      0.215 meters
    • What is the wave equation used to calculate wave speed?
      Wave speed = frequency × wavelength
    • If the frequency is 10 Hertz and the wavelength is 0.215 meters, what is the wave speed?
      2.15 meters per second
    • What happens to the standing wave when the frequency is increased?
      It changes to have more half wavelengths
    • How do you calculate the wavelength from the total length and number of half wavelengths?
      Divide total length by half wavelengths, then multiply by 2
    • What is the calculated wavelength when the total length is 0.215 meters and there are three half wavelengths?
      0.143 meters
    • If the frequency used to create the wave is 15 Hertz, what is the wave speed?
      2.15 meters per second
    • What does the wave speed depend on in the string?
      Tautness of the string and mass per centimeter
    • What is the formula to calculate wavelength from total length and half wavelengths?
      Wavelength = (Total length / Half wavelengths) × 2
    • What are the steps to measure the features of waves in a solid?
      1. Set up the apparatus with a string and mass.
      2. Use a signal generator to create vibrations.
      3. Measure the total length of the standing wave.
      4. Calculate wave speed using the wave equation.
      5. Adjust frequency to observe changes in standing waves.
    • What are the key concepts related to standing waves in this practical?
      • Standing waves form due to resonance.
      • Wavelength is calculated from total length and half wavelengths.
      • Wave speed is independent of frequency and wavelength.
      • Tautness of the string affects wave speed.