wavelength

• the highest point of a wavelength is the crest, the lowest point is the trough
• how many different wavelengths are there?

  7
• higher amplitude means more energy
• What happens to the speed of a wave if its frequency is doubled but the medium remains the same

  Speed remains unchanged
• What does the frequency of a wave determine?

  the number of cycles per second
• the unit of frequency is hertz (Hz)
• frequency is inversely proportional to wavelength
• amplitude affects the loudness of a sound wave
• How does reflection affect the wavelength of a wave?

  wavelength remains the same
• Frequency determines the pitch of a sound wave
• What is the effect of increasing the frequency of a wave?

  Higher frequency waves have shorter wavelengths
• What occurs when waves hit a barrier?

  Reflection occurs when waves bounce back
• What is the relationship between the angle of incidence and the angle of reflection?

  The angle of incidence equals the angle of reflection
• With which types of waves can reflection occur?

  Reflection can occur with sound, light, and water waves
• What is amplitude in the context of waves?

  Amplitude is the maximum displacement from rest
• How does amplitude relate to the energy of a wave?

  Higher amplitude means a wave carries more energy
• In what units is amplitude measured for mechanical waves?

  Amplitude is measured in metres
• What is frequency in the context of waves?

  Frequency is the number of waves per second
• How is frequency measured?

  Frequency is measured in hertz (Hz)
• What does 1 Hz represent?

  1 Hz equals one wave per second
• What is the relationship between frequency and wavelength?

  Higher frequency waves have shorter wavelengths