4.4.3 Superposition and Interference

• What is superposition in wave phenomena?

  Combination of two or more waves
• What happens to the amplitude of a wave during destructive interference?

  Decreases or cancels out
• What does the superposition principle state about the resultant wave amplitude?

  Sum of individual amplitudes
• Constructive interference results in a stronger or more intense wave.

  True
• What happens to the amplitude of a wave during destructive interference?

  Smaller amplitude or cancellation
• Destructive interference occurs when peaks meet troughs
• Constructive interference results in a wave with a larger amplitude
• Waves with aligned peaks produce constructive interference.
• What happens to the wave's amplitude in destructive interference?

  Decreases
• What are beats in sound waves caused by?

  Interference of frequencies
• What happens to the wave's amplitude in constructive interference?

  Increases
• Constructive interference occurs when the peaks of two waves coincide.

  True
• The amplitude of a wave increases during constructive interference and decreases during destructive interference
• Destructive interference results in a wave with a smaller or diminished
• What type of experiment demonstrates interference patterns in light waves?

  Young's Double Slit Experiment
• Match the wave type with its interference example:

  Water Waves ↔️ Ripple Tank Experiments

  Light Waves ↔️ Young's Double Slit Experiment

  Sound Waves ↔️ Beats
• The superposition principle states that when two waves overlap, their amplitudes add up.


  True
• Match the type of interference with its property:

  Constructive Interference ↔️ Peaks coincide with peaks

  Destructive Interference ↔️ Peaks meet troughs
• In constructive interference, the peaks of the waves coincide
• In constructive interference, the amplitude of the resultant wave is the sum of the individual wave amplitudes.
• What is the definition of superposition in waves?

  Combination of overlapping waves
• Match the type of interference with its property:

  Constructive Interference ↔️ Peaks coincide with peaks

  Destructive Interference ↔️ Peaks meet troughs
• What happens to the amplitude in destructive interference?

  Reduces or cancels out
• What is the resultant wave like in constructive interference?

  Stronger or more intense
• Destructive interference leads to a weaker or diminished wave.

  True
• Destructive interference results in a wave with a smaller amplitude.

  True
• When two waves overlap, the resultant amplitude is equal to the sum of the individual wave amplitudes
• Destructive interference happens when the peaks of one wave meet the troughs
• What is the resulting amplitude in constructive interference?

  Larger
• Match the properties with the type of interference:

  Wave Alignment: Peaks coincide with peaks ↔️ Constructive Interference

  Wave Alignment: Peaks meet troughs ↔️ Destructive Interference
• When two sound waves of slightly different frequencies overlap, they create a rhythmic fluctuation in amplitude called beats
• What is one application of destructive interference in sound waves?

  Noise Cancellation
• Constructive interference occurs when two waves with peaks coincide
• The resultant amplitude in constructive interference is the sum of individual amplitudes.


  True
• Order the steps describing destructive interference:

  1️⃣ Peaks of one wave meet troughs of another wave

  2️⃣ The amplitudes are subtracted

  3️⃣ The resultant wave has a smaller amplitude
• Match the type of interference with its effect on amplitude:

  Constructive Interference ↔️ Increases amplitude

  Destructive Interference ↔️ Decreases or cancels out amplitude
• In constructive interference, the resultant wave has a larger amplitude than the individual waves.


  True
• The superposition principle states that the amplitude of the resultant wave is the sum of the amplitudes of the individual waves.


  True
• The superposition principle applies only to waves with the same frequency.

  False
• Destructive interference results in a wave with a smaller amplitude