Measuring the speed of sound in aid

• What is one way in which energy may be transferred between stores?

  Waves
• What do both mechanical and electromagnetic waves transfer?

  Energy but not matter
• What are the two types of waves mentioned?

  • Longitudinal waves
  • Transverse waves
• How do sound waves travel through air?

  By causing air particles to vibrate and collide
• What happens to the ear drum when sound is transmitted?

  It vibrates
• How does the speed of light compare to the speed of sound in air?

  Light travels much faster than sound
• If a person is 400 m away from a starting pistol, what is the significance of the time difference recorded?

  It helps calculate the speed of sound
• What is the formula to calculate speed?

  Speed = distance / time
• What is the equation for wave speed in symbols?

  $v =$$\frac{x}{t}$
• In the equation $v =$$\frac{x}{t}$, what does $v$ represent?


  Wave speed
• In the equation $v =$$\frac{x}{t}$, what does $x$ represent?


  Distance
• In the equation $v =$$\frac{x}{t}$, what does $t$ represent?


  Time
• If an observer is 400 m away and records a 1.2 s time difference, what is the calculated speed of sound?

  $v =$$\frac{400}{1.2} =$$333 \ m/s$
• What is the accepted value for the speed of sound in air?

  330 m/s
• Why might the experimental method for measuring the speed of sound be flawed?

  Human reaction times vary, affecting accuracy
• How does the recorded speed of sound compare to the accepted value?

  The recorded speed is slightly above the accepted value