What s the deal with wave classification
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What’s the deal with WAVE classification?. Mr. Blizzard, 8 th Grade Science Tanglewood Middle School. How are WAVES classified?. What’s the deal with WAVE classification?. Waves can be classified by WHAT they move through or by HOW energy moves through them.

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What s the deal with wave classification l.jpg

What’s the deal with WAVE classification?

Mr. Blizzard, 8th Grade Science

Tanglewood Middle School


How are waves classified l.jpg
How are WAVES classified?


What s the deal with wave classification3 l.jpg
What’s the deal with WAVE classification?

Waves can be classified by WHAT they movethrough or by HOWenergymovesthrough them.

red words= vocabulary, blue words= connect words


Classification of waves by what they move through l.jpg
Classification of WAVES by WHAT they move through


What s the deal with wave classification5 l.jpg
What’s the deal with WAVE classification?

There are two classifications for waves based on what they move through:

  • Mechanical Waves

  • Electromagnetic Waves

red words= vocabulary, blue words= connect words


What are mechanical waves l.jpg
What are mechanical WAVES?


What s the deal with wave classification7 l.jpg
What’s the deal with WAVE classification?

Mechanical waves are waves that can ONLY move through a medium (through matter).

red words= vocabulary, blue words= connect words


What s the deal with wave classification8 l.jpg
What’s the deal with WAVE classification?

Mechanical wavesrequire the particles of the medium to vibrate in order for energy to be transferred.

red words= vocabulary, blue words= connect words


What are examples mechanical waves l.jpg
What are examples mechanical WAVES?


What s the deal with wave classification10 l.jpg
What’s the deal with WAVE classification?

  • water waves

  • earthquake/seismic waves

  • sound waves

  • waves that travel down a rope or spring

All of these examplesCANNOT move through empty space.


What is empty space l.jpg
What isEMPTY SPACE?


What s the deal with wave classification12 l.jpg
What’s the deal with WAVE classification?

Empty space is space in which NO MATTER is present. Another name for this is a vacuum.

red words= vocabulary, blue words= connect words


What are electromagnetic waves l.jpg
What areelectromagnetic WAVES?


What s the deal with wave classification14 l.jpg
What’s the deal with WAVE classification?

Electromagnetic wavesare waves that can travel through matter or empty space where matter is not present.

red words= vocabulary, blue words= connect words


What are examples of electromagnetic waves l.jpg
What are examples of electromagnetic WAVES?


What s the deal with wave classification16 l.jpg
What’s the deal with WAVE classification?

  • radio waves

  • microwaves

  • infrared waves

  • visible light

  • ultraviolet rays

  • X-rays


Classification of waves by how energy moves through them l.jpg
Classification of WAVES by HOW energy moves through them


What s the deal with wave classification18 l.jpg
What’s the deal with WAVE classification?

There are two classifications for waves based on how energy moves through them:

  • Compressional/Longitudinal Waves

  • Transverse Waves

red words= vocabulary, blue words= connect words


What are compressional longitudinal waves l.jpg
What are compressional/ longitudinal WAVES?


What s the deal with wave classification20 l.jpg
What’s the deal with WAVE classification?

Mechanical waves in which the particles of matter in the mediumvibrate by pushing together and moving apartparallel to the directionin which the wave travels are called compressional/longitudinal waves.

red words= vocabulary, blue words= connect words


Slide21 l.jpg

http://www.lcse.umn.edu/specs/labs/glossary_items/rarefaction_spring.htmlhttp://www.lcse.umn.edu/specs/labs/glossary_items/rarefaction_spring.html


What s the deal with wave classification22 l.jpg
What’s the deal with WAVE classification?http://www.lcse.umn.edu/specs/labs/glossary_items/rarefaction_spring.html

The place on the wave that is pushed together is called the compression and the place that is moving apart is the rarefaction.

red words= vocabulary, blue words= connect words


What are examples of compressional longitudinal waves l.jpg
What are examples of http://www.lcse.umn.edu/specs/labs/glossary_items/rarefaction_spring.htmlcompressional/ longitudinal waves?


What s the deal with wave classification24 l.jpg
What’s the deal with WAVE classification?http://www.lcse.umn.edu/specs/labs/glossary_items/rarefaction_spring.html

  • sound waves

  • some waves in a spring

  • some seismic waves (earthquake waves- primary waves, to be exact)


What are transverse waves l.jpg
What are http://www.lcse.umn.edu/specs/labs/glossary_items/rarefaction_spring.htmltransverse WAVES?


What s the deal with wave classification26 l.jpg
What’s the deal with WAVE classification?http://www.lcse.umn.edu/specs/labs/glossary_items/rarefaction_spring.html

Mechanical waves in which the particles of matter in the mediumvibrate by moving back and forth and perpendicular (at right angles) to the direction the wave travels are called transverse waves.

red words= vocabulary, blue words= connect words


Slide27 l.jpg

science.hq.nasa.gov/kids/imagers/ems/waves3.html http://www.lcse.umn.edu/specs/labs/glossary_items/rarefaction_spring.html


What s the deal with wave classification28 l.jpg
What’s the deal with WAVE classification?http://www.lcse.umn.edu/specs/labs/glossary_items/rarefaction_spring.html

The highest point of a transverse wave is the crest and the lowest point is called a trough.

red words= vocabulary, blue words= connect words


What are examples of transverse waves l.jpg
What are examples of http://www.lcse.umn.edu/specs/labs/glossary_items/rarefaction_spring.htmltransverse waves?


What s the deal with wave classification30 l.jpg
What’s the deal with WAVE classification?http://www.lcse.umn.edu/specs/labs/glossary_items/rarefaction_spring.html

  • strings on a musical instrument

  • waves on a rope

  • some waves in a spring

  • some seismic waves (earthquake waves- secondary waves, to be exact)


What s the deal with wave classification31 l.jpg
What’s the deal with WAVE classification?http://www.lcse.umn.edu/specs/labs/glossary_items/rarefaction_spring.html

Electromagnetic waves are transverse waves that can travel without a medium through empty space.

red words= vocabulary, blue words= connect words


Works cited l.jpg
Works Citedhttp://www.lcse.umn.edu/specs/labs/glossary_items/rarefaction_spring.html

  • Information from the South Carolina State Science Standards for 8th Grade

  • Microsoft Clipart (the background picture)

  • http://www.lcse.umn.edu/specs/labs/glossary_items/rarefaction_spring.html

  • science.hq.nasa.gov/kids/imagers/ems/waves3.html