Transcript Slide 1

Mon Feb 24th
1. Sound test ***(may use Earthquakes notes,
Acc Eng wrksht, Med Ultrasound wrksht (&
Rumble notes), Good Vibrations wrksht – for
the back page of the test only)
•
Turn your work packet back in after the test!
2. Asst: regular notes pages 430-451 (write
page numbers of each page before you
take the notes for that page; there is no
wrksht for this)
Tues Feb 25
1. Turn in ….; Binders: sound stuff “OLD”;
need ½ sheets, copies, etc …
2. Lecture notes day 1 – Light
3. Asst: ch 16 concepts from another
book (see handout)....
p336 CR 1.2
p342 CR 2.1-2.3
Page 343 RC #1-7, 10-15; AC
#1,5,7,10,11,13-15
Wed 2/26
1. You’ve got 2 minutes to finish the chart from
yesterday!
2. More Lecture notes – through Reflection
3. HW: chapter 16 problems from other book
(see back of handout)....
Page 344 #2, 3, 4, 7
Page 699 #1-5, 8, 12-16
#4 about Roemer b) use v = d / t; c) distance =
circumference = 2 * pi * r, so use….
v = 2*pi* 1.5 x 108 m / time
Answers = 4.2 x 109 m, 28 km/ sec, 30 km/sec
#1 2nd column: nano means 10-9; answer is WRONG… = 450
nm
#8 2nd column answer = 6 x 107 Hz
#12-16 we’ll go over later
ON LAST NIGHT’S:
#4 about Roemer b) use v = d / t; c) distance =
circumference = 2 * pi * r, so use….
v = 2*pi* 1.5 x 108 m / time
Answers = 4.2 x 109 m, 28 km/ sec, 30 km/sec
Thurs 2/27
#1 2nd column: nano means 10-9; answer is WRONG… = 450
nm
#8 2nd column answer = 6 x 107 Hz
#12-16 we’ll go over later
1. Questions on chapter 16 conc/probs?
2. Bill Nye: (a) Optics – 15 NOTES ; (b) Light &
Color – 10 NOTES
•
•
same sheet, collected end of period
For 2nd video - just need light stuff, not pigment stuff!
3. HW:
(a) Make sure Chapter 16 concepts AND
problems are all done! (packet collected
tomorrow: ch 16 notes, concepts, problems)
(b) HW: Guided Notes Reflection & Refraction
#8 PROBLEMS answer:
v =   ; v = 3 x 108 m/s so  = 6 x 107 Hz
We’ll go over #12-16 later
Fri 2/28
1. Turn in chapter 16 packet: notes, concepts,
problems stapled together - in that order.
2. More Lecture notes: (refraction/Snell’s law,
rules, coin-in-the-cup, total-internal reflection &
critical angles, rainbow)
b) HW: reflection/refraction concepts other book
wrksht,
left column only…
RC #1-3, 5-7, 10, 11, 13
AC # 6-10, 14, 15
#7 actually refers to picture 18-24 (not 17-17!) on page 508
#14 = A prism bends violet light more than red light; explain.
#15 = Which color of light travels fastest in glass, red, green, or blue?
Mon 3/3
Any 11th graders who
need next-year
schedules signed??
1.
Great America – 3rd Friday in May, need 1 parent driver for every 4-5
students going; no D’s or excessive tardies may attend – more information
coming soon!!
2.
3.
4.
•
Questions on reflect/refract concepts?
Lecture notes …. Up to RAINBOW start
HW: DO BOTH A&B ON SAME LINED PAPER!
(a) Calculate all critical angles for substances listed on
top of yesterday’s wksht (almandite, etc) going into air
(b) other book worksheet problems:
reflection/refraction probs p364 #1-3, 5-10, 16, 17, 20,
21, 27 (columns two & three, to the right of concepts)
•
XC: notes on…
How Do 3D Glasses Work.doc
black light, fluorescence, etc
Vegas Hotel Pool.doc
(see webpage)
Tues 3/4
Any 11th graders who
need next-year
schedules signed??
1. MORE Lecture notes and fun stuff!
2. Optics boxes – discuss & start box A
3. HW a: Finish optics boxes (must show math
work on separate sheet)
4. HW b: Worksheet on polarization and color
XC: notes on…
How Do 3D Glasses Work.doc
black light, fluorescence, etc
Vegas Hotel Pool.doc
(see webpage)
Any 11th graders who
need next-year
schedules signed??
Wed 3/5
1. Turn in reflect/refract packet: Guided notes,
concepts, problems (+ crit angle) stapled
together – in that order.
2. Go over optics boxes
3. Do triangle vs rectangle box (& notes)
4. Refraction with lasers & water
•
•
data only, no calculations
Fiber optics? Laser “patches”?
5. Finish Rainbow
6. HW: Guided Notes - curved mirrors & lenses
XC: notes on…
(ch 17 & 18)
How Do 3D Glasses Work.doc
black light, fluorescence, etc
Vegas Hotel Pool.doc
(see webpage)
Triangle versus rectangle
(dispersion)
• If you have an odd-shaped
piece of glass (not a
parallelogram, but like a
prism or a water drop) the
angle of final refracted ray
that comes out is NOT equal
to the angle of the original
incident ray that went in.
• ie: those rays are not
parallel.
• Thus, the light spreads out
or “disperses” and we get a
rainbow.
Finding “n” of water
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
Laser safety rules!!!!
Each lab table gets 1 laser, 1 sheet of paper, 1 box:
Trace the box in the middle of the paper (tape it?)
Set the laser light up at about 20-40 degrees incident to the box (tape it?)
Make a small dash mark where the laser light enters the box – incident (and
label it “a”)
Make a small dash mark where the laser light exits the box when empty (and
label it “b”)
Fill the box with water
Make a small dash mark where the laser light now exits the box with water in it
(and label it “c”)
Put ALL group members names on paper, and had it to the teacher to make
copies for all.
If you finish quickly, you may then “play” with the fiber optics cables or the
optics filters or the prisms – see your teacher
Line a-b
Tomorrow:
OUTSIDE box
Draw a line through a-b OUTSIDE the box (incident ray)
Draw a line through a-c INSIDE the box (refracted ray)
Line a-c
Measure & draw in the normal
INSIDE box
measure (& write in) incident & refracted angels
Use Snell’s Law to calculate the n for water
Do a % error calculation
Thurs 3/6
Any 11th graders who
need next-year
schedules signed??
1. Calculation of n of water
2. Rectangle vs Triangle (or finish other from yesterday)
3. Start Mirror Ray Diagrams & Lens Ray Diagrams
4. HW:
(a) Mirror/lens concepts fill-in handout RC 1, 2, 4, 5, 7-11;
AC 3-8 (look in book and/or new Guided Notes for the answers we
haven’t covered yet!)
(b) Make sure mirror diagrams 1-6 are done, and lenses 1-3
are done (do not attempt lenses 4-6 on your own!)
**Mirror & Lens diagram ppt’s are on the website!
Ray Diagrams
•Mirrors
•Lenses
Fri 3/7
1st period – calculate n of water from data
Finish diagrams: Mirrors and then maybe Lenses
Learn equations using wrksht
Depending on time left:
1.
2.
3.
4.
•
•
•
15 - 20 min = Laser reflection contest? (Can do after STAR too)
5 min = do Blind Spot
5 min = Watch “Optical Illusions” from Bill Nye “Brain” ??
5.
HW:
(a) Mirror/lens probs old book #2, 4, 5, 7-10, 13-15 (SEE HINTS ON
BACK!)
(b) Redo mirror diagrams a second time
2) 2.4 m
9) 5.0
4) 20.0 cm
10) concave, 32.4 mm
5) 75.0 cm
13) 66.7 cm, 1.67 ho
7) 30.0 cm, -1.8 cm 14) 51 mm, 1010 mm
8) -24 cm, +9.0 cm
15) convex, 16.2 mm
1 / f = 1 / d o + 1 / di
- di / do = hi / ho = magnification
Concave mirrors &
convex lenses
(diagrams 1-5) have
positive focal lengths.
A negative d, means the
image is virtual.
An infinite () di means
the image is nonexistent (diagram 4).
Convex mirrors &
concave lenses
(diagrams 6)
negative focal
lengths.
A negative h, means the
image is upside down
(inverted).
Any problem about the
sun or other stars as
an object means use
do = infinity.
The focal length of a
"planar" mirror is
infinity (recall that
1/ = 0 and that

1/ =  )
0
***Note - because of the negative sign in the 2nd
equation, it is not possible to have a real erect
image!***
Lasers with reflection
•
•
•
•
Work in pairs of tables across lab tables (9 people?)
Only FAR lab table has laser “ON”.
Shine laser on first mirror across isle to nearby lab table.
Bounce laser from first mirror to 2nd mirror back across
lab tables.
• Bounce laser from 2nd mirror to 3rd mirror back across
lab tables.
• Hit all 9 mirrors; the last mirror is the big one. The light
must bounce off of that mirror onto the top knob of the
sink at the far lab table.
• First pair of lab groups to get all mirrors gets extra credit;
some xc for 2nd place (if there is one). If we run out of
time, group with most mirrors wins.
Mon 3/10
1.
Fill in this chart in your binder (by yourself, quickly):
2.
3.
4.
Finish Lens Diagrams
Go over polarization & color wrksht (turn in work packet?)
2x2x2 front/back STUDY GUIDE – YOU MUST HAND COPY THIS ONTO
AN UNLINED SHEET OF PAPER!
Depending on time left:
See Great America
15 - 20 min = Laser reflection contest? (Can do after STAR too)
email, payment due
5 min = do Blind Spot
Friday, parent
5 min = Watch “Optical Illusions” from Bill Nye “Brain” ??
drivers
Asst:
(a) Redo lens diagrams a 2nd time
9) 5.0
2) 2.4 m
(b) redo 6 problems with
10) concave, 32.4 mm
4) 20.0 cm
f = 50 cm; ho=10 cm
5) 75.0 cm
13) 66.7 cm, 1.67 ho
(“HW #1”)
5.
•
•
•
6.
•
•
7) 30.0 cm, -1.8 cm
14) 51 mm, 1010 mm
8) -24 cm, +9.0 cm
15) convex, 16.2 mm
Make HW packet then play with
with lasers: fiber optics cable, blue
“card”, diffraction grating
Reflection Minilab
Refraction Minilab (coin-in-cup on back)
Rainbow
Snell’s ditto blocks A-d
Snell’s ditto calculations
Polarization / hand color ditto
Finding n of water
Rectangle vs Triangle with Snell’s
Light, Colors, (ch 16), reflection &
refraction (ch 17/18) Study Guide
(fold paper in hamburger twice = 4 squares on each side)
Top 2
squares
on front:
Light, Colors, (ch 16), reflection &
refraction (ch 17/18) Study Guide
bottom 2 squares of front:
“Polarized
light” defn =
the light is all
vibrating in
the same
direction.
Glare defn =
reflection off
a surface
(which is
horizontal, so
sunglasses
with vertical
polarizers are
necessary
Draw at
least 1
polariz.
picture:
Light, Colors, (ch 16), reflection &
refraction (ch 17/18) Study Guide
back-side, top 2 squares:
Other formulas:
Two on front
(wave eq & energy
eq)
For curved mirrors
& lenses:
1/
f
= 1/do + 1/ di
m = hi / ho =  di /
do
specular
EYE:
iris, muscles,
retina, rods &
cones, optical
nerve, blind
spot
Planar mirrors: distance to (virtual,
upright) image is exactly the same as
distance to the object. Image same
size as object too!
High freq refract
more; but high
wavelengths
diffract more
Light, Colors, (ch 16), reflection &
refraction REVIEW & Study Guide
back-side, bottom:
Dispersion: colors spreading out
in/through irregular shape
because of different refraction
amounts for different colors
Tues 3/11
Finish 2x2x2 “Study Guide” from yesterday if needed
1.
2. Quick questions on curved mirror & lens book
problems from last 2 nights
Bill Nye: eye – 10 notes required (separate sheet of paper)
3.
•
4.
•
•
Also do Blind Spot & Optical Illusions
Asst:
(a) redo all 12 diagrams – 3rd time (smaller this time!)
(b) Chameleon eye & Artificial Retina notes (do on same
sheet as video notes from above!)
•
XC if other HW completed: Notes on Black Lights &
3D glasses & Vegas Hotel2) 2.4 m
Test = Tuesday 3/18
9) 5.0
4) 20.0 cm
10) concave, 32.4 mm
5) 75.0 cm
13) 66.7 cm, 1.67 ho
7) 30.0 cm, -1.8 cm
14) 51 mm, 1010 mm
8) -24 cm, +9.0 cm
15) convex, 16.2 mm
Wed 3/12
1.
2.
•
•
Asst: Concave/convex mirrors lab
Asst:
(a) Diagrams 5&6 only
(b) redo 6 problems again with f = 40
cm; ho=20 cm (“HW #2”)
Test = Tuesday 3/18
Thurs 3/13
Thurs/Fri HW questions??? And …. ???
1.
•
M&L summary sheet together – SKIP
M&L gid quiz – SKIP
Self-Check – mirrors/lenses TAKE THIS LIKE A TEST, and turn it in
when you’re done!
Finish Lab
Depending on time left & what we did last week:
2.
3.
4.
5.
6.
•
•
•
7.
8.
Turn in book work packet on curved mirrors & lenses: (a) Guided notes
(b) concepts & problems (c) diagrams x 4 (d) equations worksheet (e)
??
5 min = Watch “Optical Illusions” from Bill Nye “Brain” ??
5 min = do Blind Spot
15 - 20 min = Laser reflection contest?
Asst: (a) Start Review packet
READ GREAT AMERICA EMAIL!
Test = Tuesday 3/18
Fri 3/14 (Happy Pi Day!)
1. Go over yesterday’s self-test
2. Go over ch 16-18 concepts/problems
CAREFULLY
3. Go over Guided Notes?
4. Asst: (a) Finish Review packet – DUE
TOMORROW (b) Fill-In Study Guides
Test = Tuesday 3/18
Mon 3/17
1.
2.
3.
4.
Go over Review packet
Go over polarization wrksht
Go over Guided Notes (2nd=M&L,5th=R&R)
Optical Illusions again? Play with lasers?
Edumedia?
5. Asst: STUDY for TEST TOMORROW!
• best study guides = 2x2x2 review & self-test
questions from yesterday
XC: notes on…
How Do 3D Glasses Work.doc
black light, fluorescence, etc
Vegas Hotel Pool.doc
(see webpage)
Tues 3/18
1. TEST!
2. Turn in anything that needs turning in.
3. HW: Guided Notes chapter 20 & 21
4. GREAT AMERICA …
•Great America 2013 …Count of definitely who is going!
• trip is Friday ____
•Students will need to commit to going, and know their transportation, by March 25th
•Money ($40.00) will be due to Student Activities by March 31st
•Field trip times are from 7:30 AM to 4 PM
•Remember, you must be in good academic standing AND have good attendance in all of your classes to attend. (You may
only go if you have no D’s or F’s and have good attendance)