Let There Be Light!
• Electromagnetic spectrum song
• Electromagnetic spectrum song
• Bozeman light
Project Benchmark #2
Build Your Instrument
To get full credit on this benchmark, your group must do the
following:
• A different type of instrument for each group member
• Hand made
• Can make 5 or more notes
• Built and checked in ON TIME!
Extra Credit Opportunities:
• Able to match up your notes to the actual notes that
professional instruments make (for example: C, D, F#, B♭,
etc.)
• Design your instruments in an artistic way or create a theme
for your instruments.
p118
LIGHT
Light is the fist of painters. There
is no object so foul that intense
light will not make it beautiful.
Ralph Waldo Emerson, Nature
(ch. III)
NATURE OF WAVES
• Waves (Def.) – A wave is a disturbance that
transfers energy. Light travels in waves.
• Medium – Substance through which a wave is
transmitted (ex. - air, glass, water, etc.)
• Speed of Waves – Depends on the properties of
the medium. Speed slows down through thicker
mediums.
Waves
red
violet
wavelength
Of the colors we see,
red has the longest
wavelength (lowest frequency)
Violet has
the shortest
wavelength
(highest frequency)
Electromagnetic
Spectrum
p123
The light waves that humans SEE are only a tiny part of the EM spectrum.
EM Spectrum: Solar Radiation
• The sun produces EM
radiation of all frequencies,
Radio waves and visible
light can easily reach us.
• X-rays from outerspace are
fortunately stopped by our
atmosphere.
• Some UV rays DO ENTER
our atmosphere and
DAMAGE our bodies.
•Radio Waves
–Longest
wavelength &
lowest
frequency.
–Used for
Radio & TV
transmission.
Short Wavelength
Microwave
• Infrared Rays
• Light rays with a longer wavelength
than the red light humans can see.
• Uses: Cooking, Medicine, T.V. remote
controls
Electromagnetic
Spectrum
Visible Spectrum – Light humans can see
Roy G. Biv – Acronym for Red, Orange,
Yellow, Green, Blue, Indigo, & Violet.
Largest to Smallest Wavelength.
Electromagnetic Spectrum
Ultraviolet rays.
• Electromagnetic waves with frequencies (shorter
wavelength) a bit higher than visible light
• Uses: food processing & other places to kill germ
cells. (It’s how we clean safety glasses)
• Helps your body use vitamin D, but causes skin
cancer!
Electromagnetic
Spectrum
X-Rays
X-ray waves are shorter than UV
rays.
Uses: Medicine – Bones absorb xrays; soft tissue does not.
Lead absorbs X-rays. You put a lead
apron over vital organs when you
receive an X-ray to protect your
cells from damage.
Electromagnetic Spectrum
Gamma rays
• Highest frequency EM waves; Shortest
wavelength. They naturally come from
outer space.
• Uses: Doctors use strong doses of
gamma rays (cancer treatment) to kill
tumor cells.
Light model
p116
DQ: How is light different from sound waves
1. The EM spectrum consists of radio
waves, microwaves, infrared, visible
light, UV, x-rays, and gamma rays
2. Radio waves have long wavelengths
and relatively low frequencies (making
them low energy); gamma rays have
short wavelengths and high
frequencies (making them high energy)
3. The speed of light in a vacuum is 3.0 x
108 m/s. Nothing can travel faster!
Portfolio entry #1- Pitch
p109
Write what you KNOW about pitch
Read about pitch
Add to your written response…In YOUR OWN WORDS!
Did you use many physics words (frequency, transverse wave, wave length)?
Use your RUBRIC. Do you have
• Definition
• Relationship (what happens to the pitch when frequency changes?)
• Musical instrument example
• Great detail
• Picture or diagram (label pictures of high and low pitch)
Share out with a partner…partner, what score would you give this response?
How can it be made better?
Edit your response until it becomes a perfect 4!
Portfolio entry #2- Wavelength
p113
Write what you KNOW about wavelength
Read about wavelength (Active physics p498-501)
Add to your written response…In YOUR OWN WORDS!
Did you use many physics words (base line, crest, trough, transverse wave,
longitudinal wave, rarefaction, compression)?
Use your RUBRIC. Do you have
• Definition
• Relationship (what happens to the wavelength when frequency
changes…the wave equation!)
• Musical instrument example
• Great detail
• Picture or diagram (show how to measure a wavelength on both kinds of
waves)
Share out with a partner…partner, what score would you give this response?
How can it be made better?
Edit your response until it becomes a perfect 4!
Investigation #5 (p530-533)
P114Shadows
115
• What do you see in the picture? Why
does this make a funny image?
• What do you think…Explain why the
length of your shadow changes during
the day. When is it longest?
• You may use a cell phone instead of the
lamp provided
• Do steps 1-9 and record in your
notebook. Get a stamp when finished
p115
Shadows
• The penumbra
only gets half as
much light as the
umbra resulting in
the shadow edge
being “fuzzy” or
lighter in color
Light model
Shadow: What Is It?
4. Shadows are formed by an
absence of light
5. Light waves travel in straight lines from a
light source
6. A shadow will look larger if the object is close
to the light source or smaller if it moves away
from the light source
7. A shadow may appear fuzzy if the light
source is large compared to the object
p116
creating an umbra and penumbra
Portfolio entry #3- Amplitude
p117
Write what you KNOW about Amplitude
Read about Amplitude (Active Physics p499)
Add to your written response…In YOUR OWN WORDS!
Did you use many physics words (base line, crest, trough, transverse wave,
longitudinal wave)?
Use your RUBRIC. Do you have
• Definition
• Relationship (what happens to the volume when the amplitude changes?)
• Musical instrument example
• Great detail
• Picture or diagram (that shows how to measure amplitude)
Share out with a partner…partner, what score would you give this response?
How can it be made better?
Edit your response until it becomes a perfect 4!
Finish
CU (p534) 1-3
PtoGo (p537) 1-6
CDP 27-1
Get a stamp when you are finished
p115
Special effect: Strobe lights
p119
• A strobe light produces regular
flashes of light
• How could you use a strobe light in
your project? (the strobe light is
available for practice during lunch, and
available for your project presentation IF
you come in and practice during lunch)
• How could you use shadows in your
presentation?
Investigation #6 (p538-541)
Reflected Light
• What do you see in the cartoon window
compared to the cartoon mirror?
• What do you think?
• Do steps 1-13. Record in your notebook
• CU (p543) 1-3
• PtoGo (p546-547) 1-7
Get a stamp when you are finished P114115
Sniper Reflection Lab
• What do you know about the word
“reflection”? Answer all 4 questions Before
You Start
• Follow all directions and answer all the
questions on the handout
p119
Get a stamp when you are finished
Light Model: Reflection
8. A reflection happens when light
rays bounce off a shiny surface.
9. The light path can be determined by
drawing an imaginary line (the normal) to
the mirrored surface.
10. The angle of incidence is equal to the
angle of reflection.
11. The (virtual) image formed by the
mirror appears behind the surface
12. The image in a mirror is backwards. p116
Bill Nye
What’s wrong with this picture?
• How can you use
this idea in your
presentation?
p121
Reflection: Flat Mirror
• When light reflects from a flat mirror, the
incoming incident angle and outgoing
reflection angle are equal.
Note: Angles are always measured with respect
to the perpendicular (or normal) to the mirror
plane.
p121
Reflection: Construct a Periscope
• The periscope uses two mirrors so that you
can observe an object above your line of
sight.
• Click here for directions to make one!
LIGHT & ITS USES - Reflection
Reflection – Bouncing back of light
waves
Regular reflection – A mirror’s smooth
surface scatters light very little.
Images are clear & exact.
Diffuse reflection – Reflected light is
scattered due to an irregular surface
(think of crumpled foil).
Finish
Sniper Lab
CU (p543) 1-3
PtoGo (p546-547) 1-7
Get a stamp when you finish
p122
Portfolio entry #4- Interference
p124
Write what you KNOW about (sound wave) Interference
Read about (sound wave) Interference (Active Physics p847)
Add to your written response…In YOUR OWN WORDS!
Did you use many physics words (constructive and destructive)
Use your RUBRIC. Do you have
• Definition
• Relationship (what happens to the amplitude when two waves meet?)
• Musical instrument example
• Great detail
• Picture or diagram (demonstrate how two waves combine)
Share out with a partner…partner, what score would you give this response?
How can it be made better?
Edit your response until it becomes a perfect 4!
Project Benchmark #3
Wave Property
Pitch
*also known as?
How the instrument
demonstrates the
property
Wind Instruments
Pan flute
frequency
Percussion Instruments
String Instruments
Brass Instruments
p125
How to change the property on the instrument
Investigation #7 (p548)
p125
• What do you see in the cartoon?
• How do you think these images are
made?
• How could you use a curved mirror in
your sound and light show?
Reflection: Convex Mirror
• A convex mirror is bent outwards and “distorts”
the image.
• The reflection always appears upright (virtual
image) and is smaller.
p125
Reflection: Convex Mirror
Application
• Because images always
appear smaller in a convex
mirror, a larger “field of view”
is possible.
• Such mirrors are used for car
side-view mirrors and
surveillance mirrors in stores.
• Do you understand why car
mirrors have the warning
given in the cartoon?
Reflection: Concave Mirror
• A concave mirror is bent inwards
and also “distorts” the image.
• When an object is outside the
focus of a concave mirror, the
reflection appears upside-down
(real image).
p125
Reflection: Concave Mirror (Inside
Focus)
• When an object
is inside the
focus of a
concave mirror,
the reflection
appears upright
(virtual image).
• Try this with a
spoon!
p125
Lenses: Convex and Concave
Convex Lens
Concave Lens
Focal Point
OBJECT
Your EYE
IMAGE
 A convex glass lens uses refraction to bend light
inwards (converging), whereas a concave lens
bends light outwards (diverging).
 In a convex lens, parallel light rays can be bent to
a focal point.
Convex Lens
Convex Lens
A convex lens curves outward; “is rounded”.
Light passing through a convex lens is bent
inward, or made to converge.
Concave Lens
A concave lens is curved inward
(caves in). Light passing through
a concave lens bends outward, or
diverges. Concave lenses are
generally prescribed for myopic,
or near-sighted, people.
Benchmark #3
Wave Property
Pitch
*also known as?
How the instrument
demonstrates the
property
How to change the property on the instrument
Wind Instruments
the length of each pipe is different. The
length of the pipe determines the
frequency, or pitch. A short pipe is a high
pitch, a long pipe is a low pitch.
Pan flute
frequency
Percussion Instruments
String Instruments
Brass Instruments
Benchmark #3
Wave Property
Pitch
*also known as?
How the instrument
demonstrates the
property
How to change the property on the instrument
Wind Instruments
when your fingers plug the hole(s) on a
flute, you change the length of the pipe.
The length of the pipe determines the
frequency, or pitch. A short pipe is a high
pitch, a long pipe is a low pitch.
each drum plays a different note (pitch)
because the drums are different sizes. The
distance (either height or diameter)
determines the pitch. A large drum has a
low pitch, a small drum has a high pitch.
flute
frequency
Percussion Instruments
drums
String Instruments
Brass Instruments
Benchmark #3
Wave Property
Pitch
*also known as?
How the instrument
demonstrates the
property
How to change the property on the instrument
Wind Instruments
when your fingers plug the hole(s) on a
flute, you change the length of the pipe.
The length of the pipe determines the
frequency, or pitch. A short pipe is a high
pitch, a long pipe is a low pitch.
each drum plays a different note (pitch)
because the drums are different sizes. The
distance (either height or diameter)
determines the pitch. A large drum has a
low pitch, a small drum has a high pitch.
A guitar changes pitch by changing the
length of the strings (when you press the
string against the fret) A long string
produces a low pitch, a short string
produces a high pitch.
flute
frequency
Percussion Instruments
drums
String Instruments
Guitar
Brass Instruments
Benchmark #3
Wave Property
Pitch
*also known as?
p125
How the instrument
demonstrates the
property
How to change the property on the instrument
Wind Instruments
the length of each pipe is different. The
length of the pipe determines the
frequency, or pitch. A short pipe is a high
pitch, a long pipe is a low pitch.
Pan flute
frequency
Percussion Instruments
drums
String Instruments
Guitar
Brass Instruments
Horn/trombone
each drum plays a different note (pitch)
because the drums are different sizes. The
distance (either height or diameter)
determines the pitch. A large drum has a
low pitch, a small drum has a high pitch.
A guitar changes pitch by changing the
length of the strings (when you press the
string against the fret) A long string
produces a low pitch, a short string
produces a high pitch.
A horn changes pitch when you change the
length of the tube. A longer pipe produces
a low pitch, a shorter pipe produces a high
pitch.
Portfolio entry #5Resonance or Doppler Effect
p126
Write what you KNOW about ____________
Read about _____________( Resonance CP p521-522)(Doppler AP p44-45)
Add to your written response…In YOUR OWN WORDS!
Did you use many physics words ?
Use your RUBRIC. Do you have
• Definition
• Relationship (what happens to the ______ when ________?)
• Musical instrument example
• Great detail
• Picture or diagram (label to demonstrate the connection to your word)
Share out with a partner…partner, what score would you give this response?
How can it be made better?
Edit your response until it becomes a perfect 4! Get
a stamp
Another Sound Quiz Tomorrow!
Sound Quiz #3
no electronics during the quiz!
Turn in quiz when finished
Finish notebook pages 124-127
Work on project (Benchmarks 2,3,4)
Portfolio entry #6- Shadow
Write what you KNOW about Shadows
p129
Read about Shadows (AP p533-534)
Add to your written response.. In YOUR OWN WORDS!
Did you use many physics words (light source, object, light rays, umbra,
penumbra)?
Use your RUBRIC. Do you have
• Definition
• Relationship (position of the object to the light source and the type of
shadow produced)
• Presentation example (how could you demonstrate shadows?)
• Great detail
• Picture or diagram (show how shadows are formed)
Share out with a partner…partner, what score would you give this response?
How can it be made better?
Edit your response until it becomes a perfect 4!
Project Benchmark #4
p128
To get full credit for this benchmark, you must do the following:
• Have a set pattern of music for your group.
• Have at least 6 notes played in the composition.
• Plan out an entertaining presentation for this song/melody
• Write out your plans here ON TIME!
Extra Credit Opportunities:
• Impressive and original (made by your group) musical score.
• Use the music ideas of playing loudly (forte) and softly (piano) to
make a message.
• Learn and play a traditional song from another culture.
Portfolio Entry # 7 - Reflection
p130
Write what you KNOW about Reflection
Read about Reflection (AP page 541-543)
Add to your written response…In YOUR OWN WORDS!
Did you use many physics words (plane/flat mirror, convex mirror, concave
mirror)?
Use your RUBRIC. Do you have
• Definition
• Relationship (angle of incidence, normal, angle of reflection)
• Presentation example (how could you demonstrate reflection?)
• Great detail
• Picture or diagram
Share out with a partner…partner, what score would you give this response?
How can it be made better?
Edit your response until it becomes a perfect 4!
How will we use these effects in our presentation?
Spring -
Summer-
Winter -
Fall -
Optical Tools
•
•
•
•
•
•
Lenses
Eyeglasses
Microscope
Camera
Kaleidoscope
Binoculars
•
•
•
•
•
•
Flashlight
Light boxes
Telescope
Prism
Spectroscope
Mirror
p132
Checkpoint Due today!
Benchmark #2
• Musical instrument – can you play at least 5
notes?
Benchmark #3
• Chart completed (p125)
• Questions answered
Benchmark #4
• Music chosen
• Image of notes played visible
p133
Coin Under the Cup
• Disappearing penny
Refraction: “Tricks” on our Eyes
Due to refraction of light from the water to the
air, the fish appears closer to the surface than
it actually is!
Have you seen this phenomenon before?
Where?
p133
Figure from Niculescu
Draw the light rays (include
the normal and angles)
P134
Investigation #8
Refraction
• Active Physics
Invest#8 (p558-560)
• Steps 1-10
• Turn in laser
Name
pointer and get
another stamp
when finished
• Finish CDP and get
stamps
Angle of
incidence
30
45
60
? You decide
Angle of
refraction
P135136
Angle of
reflection
Investigation #8
• The angle of
incidence is larger
than the angle
refraction when
light travels from
air (less dense) to
plastic (more
dense)
p134
p134
Light is bent towards
the normal when the
speed of the new
medium is lower.
Light is bent away from
the normal in the
opposite case.
Light model:
Laws of Refraction
p116
13. Light is bent when it travels from one
medium to another of a different density.
14. The law of refraction- Snell’s Law(1621)
– When the light passes through a denser
medium, the light is bent toward the normal,
because the light slows down (velocity
decreases).
– When light passes through a less dense
medium the light is bent away from the
normal because the light speeds up.
P134
Draw the light rays
(include the normal and
angles)
Reflection vs. Refraction
Trapping the Light
Fantastic.
P138
• Steps 1-4 together
• Finish all parts of the lab
with your group
• Do CU (p562) 1-3
• Get stamps when
finished
Refraction:
Air/Glass
Boundary
Denser Material
 Light “bends” or refracts between different types of
material (due to slower speed in denser materials).
 It is bent closer to the perpendicular (normal) in
denser materials (water, glass).
 Can you draw the path of a light ray from air through a
piece of glass? Through water?
Critical angle
 When do
light rays
reflect,
and when
do they
refract?
 The critical
angle
depends on
the density
of the
medium
Dispersion: “Spreading” of
Visible Light



When light is refracted, blue
light bends more than red.
Refraction therefore causes
light to “spread” or disperse
into its colors, just as you see
when sunlight hits a prism.
Remember: LIGHT RAYS
DO NOT CURVE(They change direction)
Figure from Cutnell & Johnson
Figure from Halliday
p139
p137
Refraction of Light
• Refraction – Bending of light due to a change in
speed from one medium to another.
– Index of Refraction – Amount (measure of an angle)
by which a material refracts light.
– Prisms – Glass that bends light. Light is broken out
into different colors because each frequency is bent
at a different angle.
– Bill Nye
P134
Mirage Tank Demo
p139
1.) Describe what happens to the beam before
adding sugar.
2.) Describe what happens to the beam after the
sugar dissolves.
3.) Why does this happen?
4.) Describe what happens to the beam after the
sugar is mixed into the water.
5.) How is a mirage formed?
6.) Describe a mirage you have seen outside (or in
the movies)
Portfolio Entry # 8 - Refraction
Write what you KNOW about Refraction
Read about Refraction (Active Physics p561-562)
Add to your written response…In YOUR OWN WORDS!
Did you use many physics words (density, speed, medium)?
p140
Use your RUBRIC. Do you have
• Definition
• Relationship (angle of incidence, angle of refraction, snell’s law)
• Presentation example (how could you demonstrate refraction?)
• Great detail
• Picture or diagram
Share out with a partner…partner, what score would you give this response?
How can it be made better?
Edit your response until it becomes a perfect 4!
Reflection vs.
Refraction
P139
• PtoGo (p565) 1-4/CU (p562) 1-3 Stamp!
• Benchmark #5 (front side only this week) P132
•Light Quiz Tuesday!
Project Checkpoint
• Poster
• Musical
instrument
• 5 sound principles
• Play a song
• 5 light principles
• 2 minute
presentation
• You may have
back-up music
• 2 light effects
Benchmark #6
5 SOUND principles
Describe and represent them
here
Title
Team members names
Evidence of student learning
Pictures and diagrams of
student project
5 LIGHT principles
Describe and represent
them here
.
SOUND principles
Pitch: Our instruments
each represent
different levels of
pitch. For example,
the shoe-box the six
marks have different
pitch.
Vibrations: are a rapid
back-and-forth
movement. All sounds
make vibrations, so our
instruments also make
vibrations.
Volume: The drum
boxes make louder
noise when got bigger.
This way the volume
of the sound changes.
Wave Diffractions:
when waves hit an
obstacle they will
spread out. That is
show in this image
>.
LIGHT principles
Best Song Ever
Alex Vasilenko, Alex Shylo
Evidence of student learning
Pictures and diagrams of
student project
Shadow: An area that
is not covered by light,
mostly blocked by an
object.
Color: is the visual
perceptual property
corresponding in
humans to the categories
called red, green, blue
and others
Harmonics: When
a object vibrates it
propagates sound
waves of a certain
frequency. This
frequency, in turn,
sets in motion
frequency waves
called harmonics.
Reflections: When light its
something and bounces off.
Not all objects reflect light,
some do more then others.
.
Project Benchmark #5
Light Wave Property Chart
Light Wave Effect
How could it be used?
What materials would you
need to do this idea?
Reflection
Describe it using Physics
p132
Light Quiz #1
•
•
•
•
Turn in quiz when finished
Finish notebook pages
Work on project
Extra credit: Ch 29 focus notes due
monday
RAINBOWS - HOW DO THEY HAPPEN?
p138
1.) What atmospheric events combine
to make a rainbow?
2.) How is a rainbow made?
3.) What would a rainbow look like if
you were in a helicopter (and there
was no earth in the picture)?
4. How do you make a double
rainbow? What happens to the
colors?
Dispersion:
Rainbow


White light is refracted inside
raindrops and spreads to form
the rainbow colors: roy g biv
Then the light reflects forward
and refracts more as it passes
out of the raindrop
p138
p138
Why is the sky blue?
1.) Explain why the sky is blue (what do
the air molecules do to different
wavelengths of light?
2.) Why are sunsets red (instead of blue)?
3.) How can astronomers use this
information when they look at distant
planets?
Transmission of Light
QuickTime™ and a
TIFF (Uncompressed) decompressor
are needed to see this picture.
• Transparent Objects:
– All light gets transmitted through (no scattering).
– Color transmitted is color you see. All other
colors are absorbed.
• Translucent Objects:
– Some light is scattered and some is transmitted.
• Opaque:
– Light is either reflected or absorbed. (mirrors count as opaque)
– Color of opaque objects is color it reflects.
Click to test your knowledge
Light model:
Color of Light
15. White light is the presence of ALL the
colors of the visible spectrum. Notice the
center of the Venn diagram above. Black
objects absorb ALL the colors and no
light is reflected back.
16. Each color of light has a different
frequency and wavelength (ROY G BIV)
– Bill Nye
p117
Mixing Colored Light
When red, blue,
and green light are
projected onto a
screen, the
overlapping areas
appear different
colors. Where all
the three overlap,
white is produced.
p
RED + GREEN =YELLOW
RED+ BLUE = MAGENTA
GREEN + BLUE = CYAN
Additive primary
colors are red, blue,
and green because
these colors produce
the highest number of
different colors.
Complementary Colors
When two colors are added together to
produce white, they are called
complementary colors.
YELLOW + BLUE = WHITE ( Yellow is a
combination of Green + Red )
MAGENTA + GREEN = WHITE ( Magenta
is a combination of Red + Blue)
CYAN + RED = WHITE ( Cyan is a
combination of Green+ Blue)
p
Color vision
 The
eye has
three types of
light receiving
units, red, green
and blue cones
Stimulation of Cones in Your
Eyes
• If you stimulate
only red and green
cones, not blue,
you see YELLOW.
Organization of the retina
Science Continues to Succeed!
• The genes controlling the three cone
pigments have been located on
specific chromosomes
Images of two different living human retinas showing the
diversity of numbers of cones sensitive to different colors.
P138139
• Use colored pencils to complete the handout
Phet:Color simulation
P140
• Is Light More Like a Particle or a Wave?
p140
Get a stamp when done
Is light particles or waves?
• Can you knock over a book from your seat?
• List how…
p140
Particle or wave?
Particle or wave?
Diffraction is
*Diffraction animation
Particle or wave?
Interference is
**Wave interference animation
Annotation Guide
Circle key scientists, and dates
What ideas or words grab your attention?
Where does it say light is a wave or particle?
What puzzles you or makes you question
what you thought you knew? or words that
are unfamiliar to you (to look up)
Place by things that connect to you, a text
you’ve read, or something you knew already
knew
(video)
Wave particle duality – day 2
P141142
Wave particle duality – day 3
Turn in your paper when finished
Light Model:
LIGHT & USES
p117
17. Diffraction – Bending of waves around the
edge of a barrier. New waves are formed from the
original. breaks images into bands of light & dark
and colors.
18. Interference from thin films creates iridescence
(the color in bubbles)
19. Polarized lenses reduce glare by sifting light
20. LASERs = Light Amplification by Stimulated
Emission of Radiation = produces light waves that
are all the same frequency, phase, and direction
LIGHT & USES: Diffraction
© 2000 Microsoft Encarta
• A diffraction grating. Each space between the ruled grooves acts as
a slit. The light bends around the edges and gets refracted.
Polarized light
Portfolio Entry # 9 - Color
p142
Write what you KNOW about color
Read about color
Add to your written response…In YOUR OWN WORDS!
Did you use many physics words (black, white, complimentary)?
Use your RUBRIC. Do you have
• Definition
• Relationship (between wave length and color observed)
• Presentation example ( how can you use color in your presentation?)
• Great detail
• Picture or diagram
Share out with a partner…partner, what score would you give this response?
How can it be made better?
Edit your response until it becomes a perfect 4!
Portfolio Entry # 10 – your choice
(dispersion (rainbows), polarization (sunglasses), diffraction
(ultrasound/microscopy), EM Spectrum, interference (bubbles), lasers)
Write what you KNOW about _________
Read about __________
Add to your written response…In YOUR OWN WORDS!
Did you use many physics words ?
p144
Use your RUBRIC. Do you have
• Definition
• Relationship
• Presentation example
• Great detail
• Picture or diagram
Share out with a partner…partner, what score would you give this response?
How can it be made better?
Edit your response until it becomes a perfect 4!
• Portfolio #9: Color…page 142
• Portfolio #10: your choice page 144
(dispersion, polarization, diffraction, EM
Spectrum, interference, lasers)
• project Benchmark 5 – finish the back side
• Project Benchmark 6 - Bring materials to
make posters tomorrow
• Unit Test Monday! Study your quizzes and
notes. Practice test and jeopardy on my
website for review
Waves Unit Test
There are sample test problems for sound and light on my website!
Sound
 Properties
 Longitudinal
 Amplitude/volume
 Wavelength/pitch
 Interference
 Musical instruments
 Wave equation
 Period/frequency
 Doppler effect
 Resonance
Light
 Properties
 Transverse/EM
spectrum
 Shadows
 Reflection
 Refraction
 Critical angle
 Color
 Diffraction
 Polarization