Physics

• What is a wave?

  An oscillation that transfers energy
• How do transverse waves differ from longitudinal waves in terms of particle motion?


  Transverse waves have perpendicular particle motion
• What is an example of a transverse wave?

  Light waves
• What is an example of a longitudinal wave?

  Sound waves
• What are the two primary types of waves used in communication?

  • Transverse waves
  • Longitudinal waves
• What does wavelength represent in wave properties?

  Distance between wave crests
• What does frequency represent in wave properties?

  Number of cycles per second
• What does speed represent in wave properties?

  How fast the wave travels
• What type of wave transmits radio signals?

  Longitudinal waves
• How do radio waves propagate?

  They travel through air
• What type of electromagnetic wave is used for short-range data transfer?

  Infrared waves
• How do television and satellites use waves?

  They employ electromagnetic waves for broadcasting
• What type of wave is used for signal transmission to antennas in television?

  Radio waves
• What is the advantage of fiber optics over electrical communication?

  Faster speeds and higher bandwidth
• What medium do fiber optics use to transmit data?


  Glass or plastic fibers
• What type of wave is used in Wi-Fi for wireless communication?

  Radio waves
• What type of wave is primarily responsible for transmitting television signals?

  Radio waves
• How do radio waves differ from light waves in communication applications?

  Radio waves are used for broadcasting, light waves for fiber optics
• What type of communication system uses electromagnetic waves for long-distance transmission?

  Cellular networks
• What is the primary use of radio waves in communication?

  To transmit signals wirelessly
• What is the significance of using light waves in fiber optics?

  They provide high-speed data transmission
• What is meant by coherent sources in the context of wave interference?

  Sources emitting waves of the same wavelength
• What happens when two coherent sources emit waves in phase?

  They produce constructive interference
• Why might the noise heard by an observer be louder or quieter with two speakers?

  Due to constructive and destructive interference
• What is the principle of superposition in wave interference?

  Waves add together when they meet
• What occurs during constructive interference?

  Waves arrive in phase and amplify
• What occurs during destructive interference?

  Waves arrive in antiphase and cancel
• How can you visualize waves arriving in phase?

  Like two kids swinging together
• What is the significance of the path difference in wave interference?

  It determines if waves interfere constructively or destructively
• What is the path difference when waves arrive in phase?

  Equal to a whole number of wavelengths
• What is the path difference when waves arrive in antiphase?

  Equal to half a wavelength
• What happens at point X when two coherent waves meet?

  They add together for constructive interference
• What happens at point Y when two coherent waves meet?

  They cancel each other out for destructive interference
• What is the wavelength in the context of wave fronts?

  The distance between consecutive wave crests
• How does the distance traveled by waves affect their interference?

  It determines if they arrive in phase or antiphase
• What is the effect of a dripping tap in the context of wave interference?

  It acts as a point source producing waves
• What is the relationship between wave amplitude and interference?

  Higher amplitude results from constructive interference
• How do the waves from two coherent sources behave as they travel outward?

  They maintain the same amplitude and frequency
• What is the significance of the wave fronts in the context of interference?

  They represent the crest of the waves
• What is the outcome when waves from two sources meet at point Z?

  They may add together constructively