speed of sound

• Why is finding the speed of sound considered important?

  It is a very important practical
• What equipment is needed to find the speed of sound?

  • Speaker or sound frequency device
  • Oscilloscope
  • Pair of microphones
• What does an oscilloscope do in this experiment?

  It shows the frequency of sound
• How is frequency measured?

  In hertz
• How is wavelength measured?

  In meters
• If the frequency of sound is set to 50 Hertz, what is the initial condition of the microphones?

  They are in line with each other
• What indicates that the microphones are one wavelength apart?

  The lines on the oscilloscope synchronize again
• If the distance between the two microphones is measured as 30 meters, what is the wavelength of sound?

  3 meters
• How do you calculate the speed of sound using frequency and wavelength?

  Speed = frequency × wavelength
• What happens to the sound waves when the microphones are moved apart?

  They become unsynchronized
• What is the speed of sound if the frequency is 50 Hertz and the wavelength is 3 meters?

  150 meters per second