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Unit 8: Wave Motion



Day
Friday, April 15
Day 0 of U8
(last day of U7)
Focus Question(s):
  • What is a wave like? How is it related to a vibration? What moves?
  • What did we learn this unit?

Activities:
  • Start Unit 8: Wave Motion
    • Mass on a Spring: a wiggle in time
    • Sinusoidal; vibration about a fixed position; regular and repeating (periodic)
    • Period, Amplitude, Damping
    • A Wave = a wiggle in time extending across space
    • Medium vs. Wave
    • Five characteristics of waves:
      • Regular and repeating disturbance of the medium
      • Particles of medium vibrate about a fixed position
      • Sinusoidal
      • Moves by means of particle-to-particle interaction
      • Transports energy without transporting matter
    • Wave vs. Pulse
  • Collect Lab Notebooks; Test Formation (2:10 - 2:15 PM)
  • Test on Unit 6 (60 minutes)


Homework:   
  • Read Chapter Chapter 14.1 of your Textbook (pp. 386-394)
    (or online alternative - see below)


Helpful Links:   






Day
Tuesday, April 19
1
Focus Question(s):
  • What wave properties distinguish one wave from another wave?
  • What are the important wave quantities and how are they related?

Activities:
  • Review the Nature of a Wave (5 characteristics); Think Sheet
  • Wave Properties and Mathematics
  • Think Sheet: Wave Properties
  • Mathematics of Waves; Three Equations
  • Lab WM1: Speed of a Wave


Homework:   


Helpful Links:   






Day
Thursday, April 21
2

>> Thursday, April 21 <<

Focus Question(s):
  • How are waves categorized?
  • What are the characteristic behaviors of waves?

Activities:
  • Speed of a Wave - p. 4 of Packet
  • Mathematics of Standing Waves - p. 6 of Packet
  • Desmos: wave equation
  • Lecture/Demonstration: Wave Behavior
    • Interference
    • Free- and Fixed-End Reflection
    • Boundary Behavior (transmission/reflection)
    • Desmos interference
  • Boundary Behavior - pp. 7-8 of Packet

Homework:   


Helpful Links:   









Day
Monday, April 25
3
Focus Question(s):
  • What is the electromagnetic spectrum and what are the frequency-wavelength-speed-energy trends?
  • What is polarized light and how is it created?
  • What are the primary colors of light and what is the result of mixing them in equal and unequal intensities?

Activities:
  • Review Wave Behavior: Packet pp. 7-8
  • Discuss Electromagnetic and Visible Spectrum; wavelength, frequency, speed, energy relationships
  • Video: Is light a wave or a particle?
  • Polarization: demos, discussion, Packet: pp. 9-10, simulation
  • Color
        == Video: How Do Our Eyes See Color?
        == Physiology; Cones, Wavelength, and Color
        == Three Primary Colors of Light; demo; Color Wheel
        == Physics Interactive: RGB Color Addition


Homework:   


Helpful Links:   






Day
Wednesday, April 27
4
Focus Question(s):
  • How can color subtraction rules and complementary color concepts be used to predict how color pigments interact with light?
  • How can color subtraction rules and complementary color concepts be used to predict how filters interact with light?

Activities:
  • Color Subtraction w/o RGB
    == Viewed in Another Light (pp. 3-4 of Packet)
    == Review Hit the Lights
  • Painting with CMY
  • Pigments and Paints
    == Demos: Duck, Newspaper Ad
    == Pigments and Paints (pp. 5-6 of Packet)
  • Lab WM7 Filtering Away (Light Source)
  • If time allows: Minds On Physics


Homework:   
  • Minds On Physics; do WM1- WM6 and LC1 - LC7.
  • Read Textbook - pp. 21-23 (or online alternative - see below)


Helpful Links:   







Day
Friday, April 29
5
Focus Question(s):
  • How can color subtraction rules and complementary color concepts be used to predict how color pigments interact with light?
  • How can color subtraction rules and complementary color concepts be used to predict how filters interact with light?

Activities:
  • Color Subtraction w/o RGB
    == Rules/Equations: p. 2, Q#6, Q#8
    == Viewed in Another Light (pp. 3-4 of Packet)
    == Review Hit the Lights
  • Painting with CMY
  • Pigments and Paints
    == Pigments and Paints (pp. 5-6 of Packet)
    == Demos: Duck, Newspaper Ad
    == Packet, pp. 5-6, Q#1, Q#4, Q#5
    == Filters, p. 6, Q#7
  • Lab WM7 Filtering Away (Light Source)
  • If time allows: Minds On Physics


Homework:   
  • Minds On Physics; do WM1- WM6 and LC1 - LC8.
  • Read Textbook - pp. 21-23 (or online alternative - see below)


Helpful Links:   






Day
Tuesday, May 3
6
Focus Question(s):
  • How do colored shadows form?
  • What is the Doppler effect? Why and when does it occur? What are the applications of the Doppler effect?

Activities:
  • Review Pigments and Color Subtraction: p. 6, Q#5
  • Shadows - demo; pp. 7-8 of Packet
  • Work Time (15-20 minutes):
    Finish Lab WM7 Filtering Away
    MOPs: Mission LC9
  • Wave Intensity: Sound; Decibel Scale; mathematics


Homework:   
  • Minds On Physics; do WM1- WM6 and LC1 - LC9, SM4 (to be collected soon)
  • Lab Notebooks will be collected


Helpful Links:   







Day
Thursday, May 5
7
Focus Question(s):
  • What is the Doppler effect? Why and when does it occur? What are the applications of the Doppler effect?
  • How is the perceived frequency mathematically related to the actual frequency of the source, the speed of the source, and the
  • What variables affect the intensity of a sound wave or light wave?
  • How can the deciBel scale be used to express the intensity of a sound wave?

Activities:
  • Intensity and distance; deciBel Scale; mathematics
  • Doppler Shifting: Conceptual
  • Doppler Shifting: Mathematics
  • Collect Lab Notebooks
  • Quiz


Homework:   


Helpful Links:   





Day
Monday, May 9
8

>> Monday, May 9 <<

Focus Question(s):
  • How can the deciBel scale be used to express the intensity of a sound wave?
  • How can the Doppler effect be used to determine the age of the universe?

Activities:
  • Return Lab Notebooks
  • Collect MOP Codes
  • Doppler Mathematics: Packet, Q#2-4
  • Bow Waves/Shock Waves/Mach Number; Packet, Q#1-3
  • Age of the Universe Lab (this will take a while)
  • As time allows, Work Time:
    WebAssigns
    WebAssign: Big Five
    Makeup Quiz


Homework:   


Helpful Links:   





Day
Wednesday, May 11
9
Focus Question(s):
  • How can the Doppler effect be used to determine the age of the universe?

Activities:
  • Doppler Shift Equation for Moving Observer
    Practice: Internet Problem #3
    Doppler and Shock Waves, Q#3
  • Discuss Age of Universe
  • Hubble Red Shift Activity
  • Work Time:
    WebAssigns
    WebAssign: Big Five
    Makeup Quiz


Homework:   
  • Complete WebAssign Work
  • Complete Lab Packet (Age of Universe, etc.)
  • Prepare for the Exam


Helpful Links:   







Day
Friday, May 13
10
Focus Question(s):
  • How can a two-point source interference pattern be used to determine the wavelength of light?
  • What did we learn this unit?

Activities:
  • Unit 9 Activity: Standing Wave Patterns, Harmonics, Mathematics
  • Unit 8 Test


Homework:   
  • None


Helpful Links:   










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