Wavelength Properties of Energy

Comparing Wave Properties & Energy

Essential Standard

• 6.P.1Understand the properties of waves and the wavelike property of energy in earthquakes, light and sound waves.

Clarifying Objective

• 6.P .1.1 Compare the properties of waves to the wavelike property of energy in earthquakes, light and sound.

Essential Question

• How are Earthquake waves, Light waves, & Sound waves all alike??

• How are waves created?

• What is light?

• What is sound?

• What is a Seismic Wave?

Waves Transmit Energy

• Waves transmit energy & not matter

• Waves are simply a way for energy to go from one place to another (moving energy)

• Think of a roller coaster: the energy is you in the coaster & the wave is the track that moves up & down

Energy Vibrations

• Energy causes materials to VIBRATE

• These vibrations are carried on waves

• These waves transmit/transfer energy from one place to another

Essential Question

• Get with a partner and answer…

• How are waves created?

Waves Travel through Matter• Almost all waves travel through

some type of matter

• Matter that waves have to travel is either a

① Solid② Liquid ③ Gas

• The only type of wave that does not have to travel through matter is an ELECTROMAGNETIC (light wave) WAVE which can travel through a vacuum

Earthquake Energy

• All an Earthquake is ENERGY moving through a solid

• The energy of the Earthquake travels on a wave

• Earthquake energy is called SIESMIC WAVES

Earthquake Energy

• Earthquakes use Longitudinal waves to move through the land (solid)

• Sometime the energy of the Earthquake is so great that it splits the land in two

Longitudinal Wave

• Earthquake energy travels in Longitudinal waves through a solid

• The energy moves on the wave because of compression & rarefaction repeating itself similar to a SLINKY

Seismic Waves

• http://www.youtube.com/watch?v=yOGoKCK17a4

• http://www.youtube.com/watch?v=QfmRf8iOBkI 0:00-1:08

Essential Question

• Get with a partner and answer…

• What is a Seismic Wave?

Sound Energy

• Sound Energy also travels on a Longitudinal Wave

• Sound Energy however can travel through all three types of matter– Solid – Liquid– Gas

Sound Energy

• Sound Energy begins to travel when there is some type of VIBRATION

• This VIBRATION travels through either a solid, liquid or gas

Sound Energy

• Sound Energy bumps the vibration into PARTICLES (particles make up the solid, liquid, or gas)

• The particles continue to bump into each other passing the sound energy on through a longitudinal wave

Essential Question

• Get with a partner and answer…

• What is a Sound Wave?

Light Energy

• Light Waves (Electromagnetic Waves) are Transversal waves

• They move energy up and down through space

• Light Waves (Electromagnetic Waves) can but do not have to move through a medium

Light Energy• Light waves (Electromagnetic

Waves) are the only forms of energy that can travel through a vacuum

• This means that light is the only form of energy that can travel through outer space is light energy which

• It is important to remember that energy from the sun is light energy (Electromagnetic Energy) and must pass through a vacuum

Essential Question

• Get with a partner and answer…

• What is light?

Essential Question

• Get with a partner and answer…

• How are Earthquake waves, Light waves, & Sound waves all alike??

EOG Questions

• How are earthquakes, sound, and light waves alike?

• A) They transmit energy.

• B) They carry matter.

• C) They travel in space.

• D) They can be seen.

Important Points

• Energy causes materials to vibrate

• The energy is carried on waves

• Energy must travel through a medium in all instances except one (light energy)

• Mediums include solids, liquids or gases

• Earthquake energy has wavelike properties (Longitudinal)

• Sound energy has wavelike properties (Longitudinal)

• Light energy has wavelike properties (Transversal)