Waves review

• Mechanical Wave- requires a material medium such as water, air, or rope.( cannot travel through space)
• Electromagnetic Wave- can travel with or without a material medium and can also travel through space.
• Transverse Wave

  
• Longitudinal Wave

  A)

  
• Transverse Wave- a movement of the medium is perpendicular to the direction of the energy movement.
• Crest- the displacement of the medium above the undisturbed position.
• Trough- The displacement of the medium below the undisturbed position called trough.
• The maximum of the crest and trough are equal called the amplitude.
• Wavelength- the distance between equivalent positions of succeeding length.
• Frequency- the numbers of waves that pass a single position in one second.
• Longitudinal- a mechanical wave that cause the particles of the medium move parallel to the direction of the wave.
• the wavelength of longitudinal- measured by the distance separating the dense areas of compression.
• reflection- occurs when waves bounce back from a surface they cannot pass through.
• transmission- happens when a wave travels.
• Constructive interference- occurs when crest or highest points of one wave overlap the crest on the other wave.
• Destructive interference- occurs when crest of a wave overlap.
• when you hear a loud, horrible sound of feedback between a microphone and a speaker, what type of interferenceis happening?

  Constructive interferences
• You can see light through glass and hear sounds through doors, what is happening here?

  Transmission
• What do the waves transfer from place to place?

  Energy
• Sound Waves are which type of wave?

  Longitudinal Wave
• What are the three properties of waves?

  Wavelength, frequency, and amplitude
• In parallel circuits, do all of them have the same brightness?

  Yes
• What are the waves in the earth are called?

  Seismic waves
• What causes waves of the ocean?

  Wind
• Light breaks into patterns when it runs through the thin slits because they have different wavelengths of the different colors.
• frequency is the number of waves that pass in a single second, measured in hertz (Hz)
• what is sonar?


  sound waves that bounce back
• Bigger object mean bigger sound
• The more dense go under and the less dense go up