What are some examples of when waves are useful and harmful?

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SUMMARY

This discussion focuses on the dual nature of waves, highlighting both their beneficial and detrimental effects. Useful examples include sound waves facilitating communication and radio waves enabling WiFi and cellular connectivity. Harmful instances are represented by seismic waves that trigger earthquakes and tsunamis, as well as sound waves that can create disturbances. The conversation also addresses the misconception regarding electromagnetic waves, clarifying that they do not require a medium for transmission.

PREREQUISITES
  • Understanding of wave mechanics, including sound and electromagnetic waves.
  • Familiarity with the concept of energy transfer through waves.
  • Basic knowledge of seismic activity and its effects.
  • Awareness of communication technologies like WiFi and cellular networks.
NEXT STEPS
  • Research the properties of electromagnetic waves and their applications.
  • Study the impact of seismic waves on geological structures and human safety.
  • Explore sound wave applications in technology and their effects on health.
  • Investigate the principles of energy transfer in different types of waves.
USEFUL FOR

Students studying physics, educators teaching wave theory, and professionals in telecommunications and disaster management will benefit from this discussion.

needingtoknow
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Homework Statement



What are some examples of when waves are useful and harmful?

The Attempt at a Solution



The examples for helpful I have so far are sound waves that allow us to communicate with one another and radio waves that enables us to use WiFi and cellphones. However I am not too sure about radio waves because they are electromagnetic waves and in the textbook it states that all vibrations require a medium to transfer waves, but electromagnetic waves do not require a medium so I am unsure about radiowaves. I also added that waves are an efficient form of transferring energy : sound, radiation, and thermal.

The examples for harmful I have so far are seismic waves that cause earthquakes and tsunamis and sound waves that can be a nuisance at times.
 
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needingtoknow said:

Homework Statement



What are some examples of when waves are useful and harmful?

The Attempt at a Solution



The examples for helpful I have so far are sound waves that allow us to communicate with one another and radio waves that enables us to use WiFi and cellphones. However I am not too sure about radio waves because they are electromagnetic waves and in the textbook it states that all vibrations require a medium to transfer waves, but electromagnetic waves do not require a medium so I am unsure about radiowaves.
So what? The question was about waves, not "vibrations".

I also added that waves are an efficient form of transferring energy : sound, radiation, and thermal.

The examples for harmful I have so far are seismic waves that cause earthquakes and tsunamis and sound waves that can be a nuisance at times.
 
Think again about seismic waves and earthquakes: what is really the cause and the effect here?
 

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