P5.1 Wave Behaviour

• What is wavelength defined as?

  Distance between peaks
• Match the wave type with its vibration direction:

  Transverse waves ↔️ Perpendicular to travel

  Longitudinal waves ↔️ Parallel to travel
• Arrange the wave properties from most to least related to energy transfer:

  1️⃣ Amplitude

  2️⃣ Frequency

  3️⃣ Speed

  4️⃣ Wavelength
• Wavelength, frequency, amplitude, and speed are key properties of waves
• What is the distance between two consecutive peaks or troughs of a wave called?

  Wavelength
• What is the maximum displacement of a wave from its resting position called?

  Amplitude
• What is the distance traveled by a wave per unit of time called?

  Speed
• What are the regions of high density in a longitudinal wave called?

  Compressions
• The formula relating wave speed, wavelength, and frequency is Speed = Wavelength × Frequency
• What is the unit of wave speed?

  Meters per second
• What is the bending of a wave as it passes from one medium to another called?

  Refraction
• In superposition, two or more waves combine to form a new wave, which can result in constructive or destructive interference
• Match the type of interference with its description:

  Constructive ↔️ Waves align in phase, amplitude increases

  Destructive ↔️ Waves align out of phase, amplitude decreases
• There are two main types of waves: transverse and longitudinal waves.


  True
• Match the wave property with its description:

  Wavelength ↔️ Distance between peaks

  Frequency ↔️ Cycles per time unit

  Amplitude ↔️ Maximum displacement

  Speed ↔️ Rate of energy transfer
• Match the wave behavior with its definition:

  Reflection ↔️ Wave bounces off surface

  Refraction ↔️ Wave bends through medium

  Diffraction ↔️ Wave bends around obstacle

  Superposition ↔️ Waves combine to form new wave
• Destructive interference occurs when waves are out of phase, decreasing the overall amplitude.


  True
• Mirrors and telescopes use reflection to focus light.


  True
• Waves are disturbances that transfer energy without transferring matter
• The speed of a wave is the distance traveled by the wave per unit of time
• What is the vibration direction in transverse waves relative to wave travel?

  Perpendicular
• Match the wave type with an example:

  Transverse waves ↔️ Light

  Longitudinal waves ↔️ Sound
• Match the wave property with its description:

  Frequency ↔️ Cycles per unit time

  Amplitude ↔️ Maximum displacement
• The number of wave cycles that pass a given point per unit of time is called frequency
• What is the distance between two consecutive peaks or troughs of a wave called?

  Wavelength
• Transverse waves vibrate perpendicular to the direction of travel.


  True
• What are the regions of low density in a longitudinal wave called?

  Rarefactions
• What is the unit of wavelength?

  Meters
• What happens to a wave when it encounters a surface and bounces off?

  Reflection
• What is the spreading of a wave around obstacles or through openings called?

  Diffraction
• What type of interference occurs when waves align in phase?

  Constructive
• What is the primary function of a wave?

  To transfer energy
• Light waves are an example of transverse waves
• In transverse waves, vibrations are perpendicular to the direction the wave travels
• The equation relating wave speed, wavelength, and frequency is v = λ × f
• Superposition occurs when two or more waves combine to form a new wave
• Arrange the following wave behaviors in order of their effect on wave amplitude:

  1️⃣ Constructive interference: Increases amplitude

  2️⃣ Destructive interference: Decreases amplitude
• Diffraction allows radio waves to bend around obstacles.

  True
• The amplitude of a wave is the maximum displacement from its resting position.


  True
• Transverse waves vibrate parallel to the direction of travel.

  False