waves in a solid

• What apparatus is used to measure waves in a solid?

  A string with a vibration generator
• What keeps the string taut in the apparatus?

  A hanging mass
• What does the signal generator do in the setup?

  It changes the frequency of vibration
• What is a standing wave caused by?

  An effect called resonance
• In which instruments do we find standing waves?

  Stringed musical instruments like guitars
• How do you measure the total length of the standing wave?

  From the wooden bridge to the vibration 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 of the new standing wave?

  Divide total length by half wavelengths, then multiply by 2
• What is the wavelength if the total length is 0.215 meters and there are three half wavelengths?

  0.143 meters
• What frequency was used to create the new standing wave?

  15 Hertz
• How do you calculate the wave speed for the new standing wave?

  Multiply frequency by wavelength
• What is the wave speed if the frequency is 15 Hertz and the wavelength is 0.143 meters?

  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 the wavelength from the total length and number of half wavelengths?

  Divide total length by half wavelengths, then multiply by 2
• What are the steps to calculate the wavelength in a standing wave?

  • Measure total length of the standing wave
  • Count the number of half wavelengths
  • Divide total length by the number of half wavelengths
  • Multiply by 2 to find the wavelength
• What factors affect the wave speed in a string?

  • Tautness of the string
  • Mass per centimeter of the string