1. Properties of Waves

2. Breonna, Destiney, Davon B, Sapphira, Sierra, Christian P.
BOARD
Bell Ringer
Come in; sit in your new seat
Get journal or take out a sheet of paper & writing utensil 1
Denice
Kanisha
Torien
Ms. King desk
Terronda
Shomari
Kenneth
Mikesha
Rhyannon
Alexia
Ronica
Eddie
Kiana
Cabinets
Steven
Chiarrah
Justis
Nyri
Mirisa
Tayia
Donovan
Darius
Diamond
Aaron
Jordan
Isaiah
Elijah
Damion
BLACK DESKS ONLY:
Breonna, Destiney, Davon B, Sapphira, Sierra, Christian P.
Jamya
Kendjy
Matthew

3. 2 Bell Ringer Come in; sit in your new seat
BOARD
Bell Ringer
Come in; sit in your new seat
Get journal or take out a sheet of paper & writing utensil 2
Semaj
Desean
Isaiah
Ms. King desk
Akiara
Asia
Diane
Cabinets
Deondre
Perryon
Christine V.
Carmani
Jakeria T.
Donquavis
Ty’riona
Annamaria
Lionel
Jakeria W.
Christie
Kendall
Courtney
Destini
Alexandria
Lionel
Donquavis
Tareek
BLACK DESKS ONLY:
Tyquan

4. 4 Bell Ringer Come in; sit in your new seat
BOARD
Bell Ringer
Come in; sit in your new seat
Get journal or take out a sheet of paper & writing utensil 4
Jalen
Tashauna
Jordan
Ms. King desk
Jayla
Brooklen
Deondra
Ivory
Raheem
Tylauna
Cabinets
Samiyah
Amari
Calvin
Kenosha
Brittany
Garry
Dre
Taliyah
Cathie
Gammoni
Stephanie
Devin
EMPTY
Sanquan
Computers:
Joslyn
Lakahla
Terrell

5. 6 Bell Ringer Come in; sit in your new seat
BOARD
Bell Ringer
Come in; sit in your new seat
Get journal or take out a sheet of paper & writing utensil 6
Derreonte
Kyceem
Coranel
Ms. King desk
Khai
Crystal
Jaquan
Cabinets
Joshua
Nicholas
Emely S
Jo’von
Darius
Justen
Kenya
Xavier
Sarah
Chaiashia
Tyrah
Emely L.
Jamileth
Jasmine H.
Billy
Stephen
Dyamond
Jasmine D.
Zachary
BLACK DESKS :
empty
Christian P.

6. Michelle, Cianne, Jakquese
BOARD
Bell Ringer
Come in; sit in your new seat
Get journal or take out a sheet of paper & writing utensil 7
Taylor
Alexis
Gabriella
Ms. King desk
Shantrell
Keniya
Zakera
Cabinets
Shakira
Regina
Briana E
Khateeb
Jamuari
John M
Diane
Destiny
Ahdrevious
Erika
Raven M
Lakieoria
Nelson
Dawud
Raquan
Tyler
Faith
Raven S
Russel
Emogie
BLACK DESKS ONLY:
Michelle, Cianne, Jakquese
Caitlin
Cayla S
Tiffany

7. Jeannie, Courtney, Antonio, Hayley, Chris F
BOARD
Bell Ringer
Come in; sit in your new seat
Get journal or take out a sheet of paper & writing utensil 8
Tazion
Alvin
Nesha
Ms. King desk
Lance
Shavonna
Jada
Cabinets
Colay
Jada
Sa’koyia
Essence
Nick R.
Cameron P
Ralph R
Kyree
Diante
Richard
Noemi
Ahmari
Kiyem
Anbriana
Camille
Johneda
Candie
Jakyyah
computers:
Jeannie, Courtney, Antonio, Hayley, Chris F
Johnny

8. Announcements Need journals – THIS IS A BIG GRADE! Test grades/Tickets
Test Make-up
Spring Break Dates
Days left of school
Common classroom errors/plan of action...WHY??
Sleeping/head-down
Leaving trash
Late
Off topic conversations
Cell phones

9. Do Now
15 MINUTES
Create a vocabulary Flip Chart for the following words:
Linear Motion
Harmonic Motion
Oscillator
Period
Frequency
Amplitude

10. Expectation for 23.2 Notes
C – None
H – your getting it now
A – NOTES!
M – NONE NO ONE SHOULD BE UP UNLESS YOU’VE HAD PERMISSION
P – everyone  practice SLANT
S – YOU WILL BE PREPARED FOR THE NEXT ACTIVITY

11. 23.2 Waves
A wave is an oscillation that travels from one place to another.
If you poke a floating ball, it oscillates up and down.
The oscillation spreads outward from where it started.

12. 23.2 Waves
Waves are a traveling form of energy because they can change motion.
Waves also carry information, such as sound, pictures, or even numbers.

13. 23.2 Frequency, amplitude, and wavelength
You can think of a wave as a moving series of high points and low points.
A crest is the high point of the wave.
A trough is the low point.

14. 23.2 Frequency
The frequency of a wave is “how often” the wave moves up and down.
Measured in Hertz (Hz)

15. 23.2 Amplitude
The amplitude of a water wave is the maximum height the wave rises above the level surface.

16. 23.2 Wavelength
Wavelength is the distance from any point on a wave to the same point on the next cycle of the wave.

17. Label the wave
Crest, trough, equilibrium, wavelength, amplitude

19. Animation How could we increase the frequency? Decrease?
How could we increase the amplitude? Decrease?
How could we increase wavelength? Decrease?

20. 23.2 The speed of waves
The speed of a water wave is how fast the wave spreads, NOT how fast the water surface moves up and down or how fast the dropped ball moves in the water.
How do we measure the wave speed?

21. IMPORTANT! COPY THIS!

22. CFU!! Looking for: period Given: Equation: Solution:
The wavelength of a wave on a string is 1 meter and its speed is 5 m/s.
Calculate the frequency and the period of the wave.
Looking for: frequency
Given:
Equation:
Solution:
Looking for: period
Given:
Equation:
Solution:

23. CFU!!
The wavelength of a wave is 0.5 meter and its period is 2 seconds. What is the speed of this wave?
The wavelength of a wave is 100 meters and its frequency is 25 hertz. What is the speed of this wave? What is its period?

24. Activity In groups, you will try to solve a mystery word for a prize.
Here’s how you will do it!
Each question on the skill sheet is worth a specific letter or two.
Once you solve a question, raise your hand and once your cleared (if correct) you will receive a letter.
YOU CANNOT GUESS THE WORD, YOU CAN ONLY SOLVE FOR IT!
There can only be ONE GROUP WINNER!

25. Expectation for Activity
C – On topic - level
H – notes; group mates
A – NOTES!
M – stay in your seat unless given permission
P – everyone
S – success

26. Measured in Hertz (Hz)
Symbol - ʎ
tickets
12 MINUTES