P5.3 Wave Interaction

• The superposition principle states that when waves meet, their amplitudes combine additively
• Constructive interference occurs when a crest meets a crest, resulting in a larger amplitude.


  True
• Destructive interference happens when a crest meets a trough, potentially canceling out the amplitudes.


  True
• What is the resultant wave formed during the superposition of two waves with the same frequency and amplitude?

  A louder wave
• Arrange the main types of wave interactions in alphabetical order:

  1️⃣ Diffraction

  2️⃣ Interference

  3️⃣ Reflection

  4️⃣ Superposition
• Constructive interference occurs when waves reinforce each other, resulting in a larger amplitude


  True
• When waves bounce off a surface, the angle of incidence equals the angle of reflection
• Interference is a special case of superposition where waves either reinforce or cancel
• Match the wave interaction with its key concept:

  Superposition ↔️ Amplitude additively combines

  Interference ↔️ Reinforcement or cancellation
• The superposition principle states that when two or more waves meet, their amplitudes add together to form a resultant wave.
• Match the type of interference with its effect on amplitude:

  Constructive interference ↔️ Larger amplitude

  Destructive interference ↔️ Smaller amplitude
• Diffraction allows waves to travel around corners.

  True
• What is the key concept behind superposition in wave interactions?

  Amplitude combines additively or subtractively
• What happens to waves in diffraction when they pass through a gap or around an obstacle?

  Waves bend around edges
• Match the wave interaction with its description:

  Superposition ↔️ Two or more waves overlap

  Interference ↔️ Constructive or destructive combination

  Diffraction ↔️ Waves spread around edges

  Reflection ↔️ Waves bounce off a surface
• Constructive interference occurs when crests of waves align, resulting in an increase in amplitude
• What is wave interaction defined as?

  Waves meeting and combining
• What happens to waves during diffraction?

  They spread out
• Match the type of wave interaction with its key concept:

  Superposition ↔️ Amplitude combines additively

  Interference ↔️ Reinforcement or cancellation

  Diffraction ↔️ Bending around edges

  Reflection ↔️ Angle of incidence equals angle of reflection
• When two waves of opposite phase meet, their amplitudes subtract
• When two or more waves overlap, their amplitudes combine according to the principle of superposition
• Waves spread out when they pass through a gap or around an obstacle in a phenomenon called diffraction
• Wave interactions explain how waves behave when they meet and combine.


  True
• When waves reflect, the angle of incidence is always equal to the angle of reflection.

  True
• The superposition principle states that wave amplitudes combine to form a resultant wave.


  True
• Constructive interference increases the amplitude of the resultant wave.


  True
• Destructive interference occurs when a crest meets a trough
• The key concept behind diffraction is that waves bend around the edges of an obstacle
• Match the wave interaction with its description:

  Superposition ↔️ Waves overlap, amplitudes combine

  Diffraction ↔️ Waves spread around obstacles

  Reflection ↔️ Waves bounce off a surface
• In interference, constructive interference results in reinforcement of wave amplitudes
• The angle of incidence equals the angle of reflection in wave reflection.

  True
• What does the superposition principle state about the combination of wave amplitudes?

  Amplitudes add together
• Destructive interference reduces or cancels the amplitude of waves.


  True
• What is the effect on amplitude during constructive interference?

  Amplitude increases
• What is the effect on amplitude during destructive interference?

  Amplitude decreases or cancels
• Match the wave interaction with its key concept:

  Superposition ↔️ Amplitude combines additively or subtractively

  Interference ↔️ Reinforcement or cancellation

  Diffraction ↔️ Bending around edges

  Reflection ↔️ Waves bounce off a surface
• Refraction occurs when waves change speed and bend as they pass from one medium to another.


  True
• What law governs the bending of waves during refraction?

  Snell's Law
• In constructive interference, the crests of waves align
• Waves bend around the edges of an opening or obstacle in diffraction.


  True