Page 1 Waves

• What are the Learning Objectives of Lesson 7.1 Introduction to Waves

  • Differentiate the longitudinal and transverse waves
  • Identify and discuss the different types of waves
• Wave

  • a disturbance traveling through medium or in a vacuum
  • it can be described as a disturbance that travels through a medium from one location to another location
• Wave Pulse 


  single unrepeated disturbance
• wave train 


  succession of periodic disturbances
• Pulse


  a single disturbance moving through a medium from one location to another location.
• Repeating disturbance


  if we observe that the slinky is continuously and periodically vibrated in back and forth manner, what do u call this?
• Classification of Waves

  Waves are classified according to their direction of vibration and its nature

  When we talk about nature: it's either mechanical or electromagnetic waves

  When we talk about direction of vibration: It can be either transverse and Longitudinal
• Mechanical Waves


  type of wave that requires a material medium to propagate
• Example of Mechanical Wave

  Sound Wave - since it cant travel in vacuum, it needs medium to propagate
• Electromagnetic Waves


  can travel through a vacuum and in material media such as light, heat, radio waves, and microwave
• Transverse Waves


  when the particles of the medium are vibrating perpendicularly to the direction of wave propagation.

  made up of alternating hills and valleys
• Crest


  the top of the hill
• Trough


  bottom of the valley
• Rests


  The position of maximum upward displacement from the equilibrium position
• Trough


  the position of maximum downward displacement from the equilibrium position