Skip to Content Go to sign in Skip to Primary Navigation Skip to Page Navigation Skip to Header Navigation Skip to Footer Navigation Toggle Accessibility Options or learn more about accessability

Physics Classroom is making strides to make our site accessible to everyone, and features many accessibility features.

Our site contains 6 navigation areas. The Primary, Secondary, and Page Level navigations have a screen reader version of their nav structure that allows using the left and right keys to navigate sibling navigation items, and up or down keys to navigate parent or child navigation items. The others can be navigated using tabs.

Within the main content, we leverage headers to provide in page or in tool navigation.

Although we are still rebuilding our content to leverage these tools, our images should have both short and verbose descriptions, the later describing in great detail the image for those who cannot see. Any formulas found within the images are often in the image figure below the image.

Equations and formulas are rendered using MathJax, which has both verbal, braille (including nemath braille), and keyboard navigation within them. Learn how to configure and leverage this for various screen readers on our Equation Navigation Page.

While not every area of Physics Classroom is usable purely from keyboard and screen reader, we are committed to continue work on making this possible. If you have questions or need additional help, please use this link to contact us .

Return to screen reader navigation

Light Waves and Color

The lesson plans below include links to the specific resources on our website.

Teacher Guides for labs can be found here.


  
 
 

Day 1 of Light Waves and Color

Lesson Plan
  1. Introduce unit
  2. Briefly discuss the dual nature of light
  3. Science Reasoning Center: Models of Light
 
Homework/Announcements
  1. Reading: Physics Classroom Tutorial, Light Waves and Colors: Lesson 1, Part a-c


 

Day 2 of Light Waves and Color

Lesson Plan
  1. Physics Interactives: The Photoelectric Effect with Student Activity Sheet
    Do and post-lab, emphasizing the evidence for light behaving as a particle (the rest of the unit focuses on light as a wave)
  2. Discuss wave behaviors of light: interference, polarization; demonstrations
  3. Physics Interactives: Polarization by Reflection as a demonstration
  4. Pair Practice: Polarization Think Sheet
 
Homework/Announcements
  1. Reading: Physics Classroom Tutorial, Light Waves and Colors: Lesson 1, Part d
  2. Minds On Physics: Mission LC2 on Polarization


 

Day 3 of Light Waves and Color

Lesson Plan
  1. Science Reasoning Center: Electromagnetic Spectrum
    Do and post-lab
  2. Discuss Electromagnetic spectrum; patterns for wavelength, frequency, and energy; discuss visible light spectrum
  3. Pair Practice: Light Waves and Matter Think Sheet
 
Homework/Announcements
  1. Reading: Physics Classroom Tutorial, Light Waves and Colors: Lesson 2, Parts a, b, and c
  2. Minds On Physics: Mission LC1 on Electromagnetic and Visible Light Spectrum


 

Day 4 of Light Waves and Color

Lesson Plan
  1. Lab 1: Diluted by Distance
    Collect data, discuss results; practice some inverse square law thinking
  2. Science Reasoning Center: Light Intensity
 
Homework/Announcements
  1. Concept Builder: Light Intensity


 

Day 5 of Light Waves and Color

Lesson Plan
  1. Review interference, two-point source interference, interference patterns; show Ripple Tank Simulator as a demonstration
  2. Physics Interactives: Two-Point Source Interference Patterns
    Use Student Activity Sheet 
  3. Discuss Path Difference; do selected problems from Two Point Source Interference Problems (Honors) Think Sheet
 
Homework/Announcements
  1. Reading: Physics Classroom Tutorial, Light Waves and Colors: Lesson 3, Parts a and b
  2. Two-Point Source Interference Concept Checker


 

Day 6 of Light Waves and Color

Lesson Plan
  1. Do selected problems from Two Point Source Interference Problems (Honors) Think Sheet
  2. Derive Young's Equation; use Mathematical Model for Two-Point Source Interference Patterns (Honors) Think Sheet
  3. Discuss meaning of variables y, d, m, and L; use Young's Equation (Honors) Think Sheet
  4. Lab 2 - Two-Point Source Analysis
 
Homework/Announcements
  1. Reading: Physics Classroom Tutorial, Light Waves and Colors: Lesson 3, Parts c and d
  2. CalcPad: Light Waves 1 on Path Difference


 

Day 7 of Light Waves and Color

Lesson Plan
  1. Young's Equation
    Review equation, meaning of variables; discuss units (m, cm, nm. µm, Å, etc.); do examples from Young's Equation (Honors) Think Sheet
  2. Pair Practice: complete Young's Equation Think Sheet
  3. Lab 3 - Young's Experiment
 
Homework/Announcements
  1. CalcPad: Light Waves 2 on Young's Equation
  2. Physics Interactives: Young's Experiment (with built-in Task Tracking)


 

Day 8 of Light Waves and Color

Lesson Plan
  1. Introduce Color
    Discuss the light wavelengths and color, ROYGBIV; the eye (retina, cones, etc.); incident-absorbed-reflected model; use Reflection, Transmission, and Color (selected Qs)
  2. Pair Practice: complete Reflection, Transmission, and Color Think Sheet
  3. Physics Interactives: RGB Color Addition with Student Activity Sheet
    Do and process
  4. Discuss primary colors of light; color wheel; complementary colors; color subtraction; use of incident-absorbed-reflected model to explain the colors we see
 
Homework/Announcements
  1. Reading: Physics Classroom Tutorial, Light Waves and Colors: Lesson 2, Part d
  2. Concept Checker: RGB Color Addition


 

Day 9 of Light Waves and Color

Lesson Plan
  1. Review Color Addition
  2. Lab 4: Taking Away From RGB
    Do and process; discuss rules of color subtraction; color wheel and color equations
  3. Pair Practice: Color Addition and Subtraction Think Sheet
  4. Concept Builder: Color Addition and Subtraction
 
Homework/Announcements
  1. Reading: Physics Classroom Tutorial, Light Waves and Colors: Lesson 2, Part e
  2. Minds On Physics: Mission LC4 on Complementary Colors of Light


 

Day 10 of Light Waves and Color

Lesson Plan
  1. Physics Interactives: Painting with CMY with Student Activity Sheet
    Do and process; discuss what do pigments do? Do some examples with an incident-absorbed-reflected diagram
  2. Pair Practice: Pigments and Paints Think Sheet (Q#1-5)
  3. Concept Checker: Painting with CMY
  4. Start Concept Builder: Color Pigment
 
Homework/Announcements
  1. Review: Physics Classroom Tutorial, Light Waves and Colors: Lesson 2, Part e
  2. Concept Builder: Color Pigments


 

Day 11 of Light Waves and Color

Lesson Plan
  1. Physics Interactives: Stage Lighting with Student Activity Sheet
    Do and process; discuss what happens when the incident light isn't white? Do some examples with an incident-absorbed-reflected diagram; selected Qs from Viewed in Another Light Think Sheet
  2. Pair Practice: Viewed in Another Light Think Sheet
  3. Concept Checker: Stage Lighting

Homework/Announcements
  1. Minds On Physics: Mission LC5 on Color Subtraction
  2. Minds On Physics: Mission LC6 on Primary Pigments


 

Day 12 of Light Waves and Color

Lesson Plan
  1. Lab 5: Filtering Away
  2. Discuss filters; transition to the incident-absorbed-transmitted model; do some examples (Q#6 on Pigments and Paints Think Sheet)
  3. Minds On Physics: Mission LC8 on Color Filters
 
Homework/Announcements
  1. Concept Builder: Color Filters


 

Day 13 of Light Waves and Color

Lesson Plan
  1. Demonstration of colored shadows using RGB Lights; emphasize color subtraction and color addition
  2. Physics Interactives: Colored Shadows
    Have students construct and label a diagram of their observations; do Shadows Think Sheet
  3. Minds On Physics: Mission LC9 on Shadows
  4. Review unit
 
Homework/Announcements
  1. Prepare for Tomorrow's Test
  2. Complete all unfinished work












 
Tired of Ads? Go Ad Free ($5/year))