Mini Physics
Part of Mini EducationSwitch subject
Exit to General Wave Properties · G3 and O-Level Physics

Waves & Sound Explorer

Change the frequency, amplitude and speed of a rope wave and a sound wave, measure the wavelength with a ruler, and time echoes to find the speed of sound.

  • SEC G3 Physics 2027
Learning goals
  • Describe wave generation by vibrating sources, ropes and springs
  • Describe ripple-tank waves using wavefronts
  • Explain that waves transfer energy
  • Explain that wave energy transfer does not transfer matter
  • Use amplitude, frequency and wavelength to describe wave motion

Learning objectives

  • Describe wave generation by vibrating sources, ropes and springs
  • Describe ripple-tank waves using wavefronts
  • Explain that waves transfer energy
  • Explain that wave energy transfer does not transfer matter
  • Use amplitude, frequency and wavelength to describe wave motion
  • Define and use wave speed and period and interpret wave graphs
  • Recall and apply wave speed = frequency × wavelength
  • Compare transverse and longitudinal waves and give examples
  • Explain sound production by vibration and the need for a medium
  • Describe sound using compressions and rarefactions
  • Relate sound loudness to amplitude and pitch to frequency
  • Explain reflected-sound echoes and use them to measure distance
t = 0.00 s

A transverse wave on a rope: frequency 1.00 hertz, speed 2.00 metres per second. The ruler spans 1.00 metres.

Frequency, f
1.00 Hz
Period, T
1.00 s
Wave speed, v
2.00 m/s
Ruler reading
1.00 m
Show
Hz
m
m/s

Pulling the rope tighter makes waves travel faster.

Displacement against distance (now)
Displacement of the red particle against time

Try this

0 of 4 done

  1. Use the ruler to measure one wavelength on the rope. (not done yet)

  2. Double the frequency of the rope wave without changing its speed. (not done yet)

  3. Make the sound louder without changing its pitch. (not done yet)

  4. Record echo times for at least four distances. (not done yet)

Does this count towards my progress?