This Visible Light Spectrum worksheet is an excellent resource for calculating the wavelength, frequency, and energy of light, perfect for traditional, hybrid, or distance-learning classrooms. Students will use a visible light spectrum chart along with the speed of light equation and Planck's constant to work through real physics and chemistry calculations while reinforcing key concepts in electromagnetic radiation and light energy.
What's Included:
Printable worksheet and answer sheet with a spectrum coloring component
Digital fillable PDF (compatible with Adobe Acrobat, Lumen, Kami, and other free PDF editors)
Format Options:
This resource comes in both printable and digital formats. The digital fillable PDF is ideal for online and hybrid platforms like Google Classroom, Schoology, and other LMS platforms, and can be completed using free PDF-editing tools such as Adobe Acrobat, Lumen, or Kami.
How the Activity Works:
Students begin by using a visible light spectrum chart to calculate the wavelength of different colors of light. Next, using the light equation and the speed of light, they calculate the frequency of each color. Finally, students apply frequency and Planck's constant to calculate the energy carried by each color of light.
Students will also color the spectrum as part of the activity. I have my students complete their calculations on a separate sheet of notebook paper, which they turn in attached to their charts. An answer key is included so you can see exactly what the final product should look like.
Differentiation Built In:
For younger or lower-level students, I provide the color wavelengths directly. For physics students, I have them use the chart to calculate the wavelengths independently, adding an extra layer of challenge. I use this activity in both Chemistry and Physics classes, making it a versatile resource across multiple course levels.