Ballou 2016 Mr. Meyers Unit III (Waves) Properties of WAVES Ballou 2016 Mr. Meyers Unit III (Waves)

Kick-Off Complete sentences ~ 5-7 min Mr. Meyers A1, A4, A5 3.1 1/25/2017 1. Compare and contrast a transverse wave and a longitudinal wave. 2. Describe how a wave transmits energy. TIER 2: Provide an example of one of the three Laws of Motion. Be sure to state which law is being highlighted.

Turn, Talk, Share, & Write ~ 3 min When I say START, pass your lifeline to your nearest neighbor For 45 seconds each student will edit their partner’s responses to the lifeline. Write 1 glow and 1 grow from their response + = At least three complete sentences, few to no grammar errors = A minimum of two complete sentences some grammar errors - = Does not complete lifeline on time, sentences incomplete The person that WOKE UP the EARLIEST will SHARE the SUGGESTIONS and EDITS on their partner’s LIFELINE, FIRST. Students will be RANDOMLY called to SHARE OUT what THEIR PARTNER discussed. BE PREPARED TO SHARE!!

Agenda ~ 1 min In Class: Homework: Lifeline Objective Turn, Talk, & Write Objective Organized Binder Check Cornell Notes What is wave energy? Types of waves Independent Reading Chapter 20 section 2 Scholar Groups (TEST YOUR KNOWLEDGE) Learning Log Homework: Complete “Properties of Waves” Chp 20:1 (G3.1)

Announcements STAY FOCUSED so we can meet our OBJECTIVE PHONES ARE AWAY!!! Due TODAY Binder Check – Everyone should have a binder Quiz 3.1 due 1/29/2017 STAY FOCUSED so we can meet our OBJECTIVE

~ 2 min Objective By the end of class students will describe the relationship between wavelength and energy by performing an inquiry driven activity as well as deconstructing informational text Standard: HS-PS4-1. Use mathematical representations to support a claim regarding relationships among the frequency, wavelength, and speed of waves traveling in various media. Developing Skills: Synthesize information independently and constructively Develop critical thinking skills through inquiry driven activities.

EXPLORATION ~ 2 min Rules: Reward: When I say START, you and members of your assigned group will DEMONSTRATE and DEFINE what a transverse wave is and compare it to longitudinal wave. For 2 minutes each group will develop strategize as to how to create a wave. Once completed ALL groups members will write down the definition of a wave without any resources. Rules: Every group member must contribute No cellphones 2 minute timer Responses must be written down before the timer runs out Reward: 1st place 100 hero points, 5pts extra credit on quiz 2nd place 75 hero points 3rd place 50 hero points 4th place 25 hero points

What is the amplitude of a wave? ~ 2 min Amplitude is the maximum distance the particles of the wave vibrate away from their rest position. The amplitude of a transverse wave is related to the height of the wave.

Relationship between Amplitude and Energy Taller waves have larger amplitudes and therefore carries more energy

What is the Wavelength of a Wave? The wavelength is the distance between any point on a wave and the identical point on the next wave. A wavelength is the distance between two neighboring crests or two compressions. The distance between two troughs or two rarefactions next to each other is also a wavelength.

Relationship between wavelength and energy LOW ENERGY HIGH ENERGY Two waves of the same amplitude may carry more or less energy depending on its wavelength. The wave with a shorter wavelength carries more energy than the wave with a long wavelength.

What is the Frequency of a Wave? The frequency of a wave is the number of waves produced in a given amount of time. Frequency is often expressed in hertz (Hz). One hertz equals one wave per second)

What is Wave Speed? Wave speed is the speed at which a wave travels through a medium. Wave speed is symbolized by v. The speed of a wave is a property of the medium. Changing the medium of a wave changes its speed.

Independent Practice (15-20 min) Scholarly Studies Option 1: Read Chapter 20:2 “The Properties of Waves”. Complete Cornell Notes SILENTLY for Chp 20:2 Students that attempt AND are successful with BLANK Cornell Notes will receive 5 extra credit points. At the end of 15 minutes you will be graded on your overall performance. + = All important topics are completed, written neatly. = Missing a couple topics and remained on task for the majority of the time - = Unable to complete 1 pg of Cornell Notes, remained distracted

SCHOLAR GROUPS (TEST YOUR KNOWLEDGE) ~ 1 min When I say START, you and members of your assigned group will DEMONSTRATE your COMPREHENSION from the text by answering questions. Each group will have 1 minute to answer the question and support their answers using a text. It is important to JUSTIFY each answer. We will use round-robin style for calling on groups, if a group does not completely answer the question, another group will get a chance to steal their points. Rules: Every group member must contribute No cellphones 1 minute timer All answers must be written down before the timer goes off WITH page numbers Reward: 1st place 100 hero points, 5pts extra credit on quiz 2nd place 75 hero points 3rd place 50 hero points 4th place 25 hero points

TEST YOUR KNOWLEDGE Question 1: Draw a transverse wave and label amplitude, wavelength, and resting position?

Question 2: What is the difference between a frequency and amplitude? TEST YOUR KNOWLEDGE Question 2: What is the difference between a frequency and amplitude?

TEST YOUR KNOWLEDGE Question 3: Is this statement true, “A long wavelength will carry more energy than a shorter wavelength”? Why or why not?

Question 4: Define wavelength in your OWN words TEST YOUR KNOWLEDGE Question 4: Define wavelength in your OWN words

Question 5: What two VARIABLES are required to calculate WAVE SPEED? TEST YOUR KNOWLEDGE Question 5: What two VARIABLES are required to calculate WAVE SPEED?

TEST YOUR KNOWLEDGE Question 6: What is the wave speed of a wave whose wavelength is 5m and 10Hz?

TEST YOUR KNOWLEDGE Question 7: The distance between the crest and trough of an ocean wave is 10 meters. What is the amplitude of the wave?

TEST YOUR KNOWLEDGE Question 8: What type of wave is a tsunami? Mechanical Wave, Electromagnetic Wave, Transverse Wave, or Longitudinal Wave

Learning Log (5 min) Mr. Meyers A1, A4, A5 3.1 1/23/2016 1. Did we meet our objective? How was it achieved, if not achieved explain why? How has your idea of what a wave is, changed? What questions do you still have?