4.4.1 Wave Properties

• In transverse waves, the oscillation of the medium is perpendicular to the direction of wave propagation.


  True
• Give an example of a transverse wave.

  Light
• In transverse waves, the oscillation direction is perpendicular to the direction of propagation.
• Match the wave type with its oscillation direction:

  Transverse waves ↔️ Perpendicular to propagation

  Longitudinal waves ↔️ Parallel to propagation
• Frequency is measured in Hertz (Hz).


  True
• Match the wave parameter with its definition and unit:

  Amplitude ↔️ Maximum displacement from equilibrium; Meters (m)

  Wavelength ↔️ Distance between two identical points; Meters (m)

  Frequency ↔️ Number of cycles per second; Hertz (Hz)

  Speed ↔️ Rate of wave propagation; Meters per second (m/s)
• In transverse waves, what is the direction of oscillation relative to the direction of wave propagation?

  Perpendicular
• Longitudinal waves involve oscillations that are parallel
• Match the wave type with its oscillation direction:

  Transverse wave ↔️ Perpendicular

  Longitudinal wave ↔️ Parallel
• The formula relating wave speed, frequency, and wavelength is v = fλ.


  True
• Mechanical waves require a material medium
• Constructive interference occurs when waves combine to cancel each other out.

  False
• What is a wave?

  A disturbance that transfers energy
• What is the direction of oscillation in longitudinal waves relative to wave propagation?

  Parallel
• Sound waves are an example of longitudinal waves.


  True
• What is the unit of frequency?

  Hertz
• What is the amplitude of a wave?

  Maximum displacement from equilibrium
• What is the speed of a wave defined as?

  Rate of wave propagation
• What is a wave defined as?

  A disturbance that transfers energy
• Light waves are examples of longitudinal waves.

  False
• The oscillation of longitudinal waves is parallel to the direction of wave propagation.


  True
• The wavelength of a wave is the distance between two identical points
• The wave equation v = fλ relates speed, frequency, and wavelength
• Why can electromagnetic waves travel through a vacuum?

  They do not need a medium
• A wave transfers energy through a medium without the transfer of matter
• Transverse waves have oscillations that are perpendicular to the direction of propagation.
• Order the types of waves based on the direction of oscillation relative to propagation:

  1️⃣ Transverse waves: Perpendicular

  2️⃣ Longitudinal waves: Parallel
• Longitudinal waves can travel through a vacuum.

  False
• The wavelength of a wave is the distance between two consecutive identical points
• The wave equation relates wave speed, frequency, and wavelength as: v = fλ
• There are two main types of waves: transverse and longitudinal
• Give an example of a transverse wave.

  Light
• What does a wave transfer through a medium?

  Energy
• What is the unit of frequency?

  Hertz
• What is the speed of a wave with a frequency of 10 Hz and a wavelength of 0.5 meters?

  5 m/s
• Match the wave phenomenon with its description:

  Interference ↔️ Combination of waves

  Diffraction ↔️ Bending around obstacles

  Superposition ↔️ Overlapping wave displacements add