6.p.1.1 work silently at your desk (homework, reading, drawing, etc). sit in assigned seats. no...
TRANSCRIPT
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6.P.1 Forces In Motion
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INTRODUCTION TO WAVES…6.P.1.1
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STUDY HALL
Work silently at your desk (homework, reading, drawing, etc). Sit in assigned seats. No Talking
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Written Response: April 30
Earlier this year we studied how waves carry energy. List the 2 types of waves we learned about and describe how we used a slinky to learn more about each wave type.
Brainstorm first, then construct your sentences.
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Waves & Their Characteristics
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Add to alphabet book…
• Vibrations: • create waves • Carries energy which transfers
(spreads) the energy away from the source.
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Let’s learn about frequency
• This Brain Pop video will teach you!• http://www.brainpop.com/scien
ce/energy/waves/
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Transverse Waves: Draw this
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Transverse Wave Challenge• On the wave you drew, label:• Wavelength• Crest• Trough• Amplitude• Rest position• Frequency
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Add to alphabet book…..
• Wavelength- the space between two identical parts of a wave
– from a crest to a crest, or a trough to a trough.
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Add to alphabet book…..
• Trough- the bottom or lowest part of a wave, which happens every wavelength.
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Add to alphabet book…..
• Crest- the top or peak of a wave. Crests occur every wavelength.
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Add to alphabet book…..
• Amplitude- the height of the wave. • Shows the energy of the wave
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Add to alphabet book…..
• Frequency- the number of times a wave passes a point in one second• How fast the wave is moving
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Transverse Wave Facts
• Light waves, and waves in the water are transverse• Light waves are present in a vacuum
like outer space
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Transverse Waves
• How to remember-• Rock thrown in a pond• The Wave at a sports event• Travelling=Transverse waves up/down
left/right
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Let’s do some of this stuff!• Transverse wave- with a slinky!• Let’s pick my assistant• Here is the demo.• I will hold the slinky in the rest or equilibrium position.• My assistant will move it to the left and to the right.• Up and down.
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Another thing for us to do to remember Transverse Waves
• The Wave!
• I will show you how we’ll do the wave.• We are just like a wave as the energy moves
down the line.• When I point to you react accordingly.
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Amplitude
• 1st wave- Move our hand a few inches up and down.
• 2nd wave-Move our arms up and down• 3rd wave-Move our whole bodies and
arms up and down
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Art Talent Time
2 Crests 10 Troughs
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Teacher on 10 cups of coffee Longitudinal Waves
• http://www.youtube.com/watch?v=aLAB-d8VnZ8
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Longitudinal Wave Facts
• Sound waves, and seismic earthquake waves are longitudinal.
• These waves can not move through a vacuum in space.
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Let’s try the slinky again!
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Wave Types
• Seismic Waves: waves of energy that travel through the Earth's layers• Example: earthquakes• http://www.iknowthat.com/mhscie
nce/Earthquakes/Fixed.htm
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Wave Types
• Electromagnetic waves = waves which can travel through the vacuum of outer space.
• Mechanical waves = require the presence of a material medium in order to transport their energy from one location to another.
Write EVERYTHING on this slide…