Blackbody Spectrum

Blackbody Spectrum Screenshot  Download  Embed
  • Blackbody
  • Planck's Law
  • Wien's Law
Flash Logo Original Sim and Translations

Topics

  • Blackbody
  • Planck's Law
  • Wien's Law
  • Electromagnetic Radiation
  • Quantum Mechanics
  • Astronomy

Description

How does the blackbody spectrum of the sun compare to visible light? Learn about the blackbody spectrum of Sirius A, the sun, a light bulb, and the earth. Adjust the temperature to see the wavelength and intensity of the spectrum change. View the color of the peak of the spectral curve.

Sample Learning Goals

  • Describe what happens to the blackbody spectrum as you increase or decrease the temperature. What happens to the shape of the curve and the peak of this curve?
  • Describe the blackbody spectrum of a light bulb. Why do light bulbs get hot? Do they seem efficient?
  • Imagine that you see 2 hot, glowing objects--one is glowing orange and the other is glowing blue. Which one is hotter?
  • Find the relationship between the temperature and the wavelength at the peak of the curve.
Version 1.0.6

Teacher Tips

Download teacher tips PDF Overview of sim controls, model simplifications, and insights into student thinking ( PDF ).

Teacher-Submitted Activities

Visualization and Visual Illusions SIM Homework A gold star indicates high-quality, inquiry-based activities that follow the PhET design guidelines. This contribution was designed by PhET. Kathy Perkins, Carl Wieman UG-Intro HW Physics
Alignment of PhET sims with NGSS This contribution was designed by PhET. Trish Loeblein updated by Diana López MS
HS
Other Earth Science
Biology
Chemistry
Physics
PhET Sims Aligned to the Chemistry Curriculum This contribution was designed by PhET. Julia Chamberlain UG-Intro
HS
Other Chemistry
How do PhET simulations fit in my middle school program? This contribution was designed by PhET. Sarah Borenstein MS Other Earth Science
Physics
Chemistry
Biology
Blackbody Spectrum & Lasers Simulations Homework This contribution was designed by PhET. Kathy Perkins, Carl Wieman UG-Intro
HS
HW Physics
Blackbody Spectrum Simulation Homework This contribution was designed by PhET. Kathy Perkins, Carl Wieman UG-Intro
UG-Adv
HW Physics
Mapping of PhET and IBDP Physics Jaya Ramchandani HS Other Physics
MS and HS TEK to Sim Alignment Elyse Zimmer HS
MS
Other Chemistry
Physics
Biology

The new HTML5 sims can run on iPads and Chromebooks, as well as PC, Mac, and Linux systems.

iPad:
iOS 11+ Safari
iPad compatible sims

Android:
Not officially supported. If you are using the HTML5 sims on Android, we recommend using the latest version of Google Chrome.

Chromebook:
Latest version of Google Chrome
The HTML5 and Flash PhET sims are supported on all Chromebooks.
Chromebook compatible sims

Windows Systems:
Microsoft Edge and Internet Explorer 11, latest version of Firefox, latest version of Google Chrome.

Macintosh Systems:
macOS 10.9.5+, Safari 9+, latest version of Chrome.

Linux Systems:
Not officially supported. Please contact phethelp@colorado.edu with troubleshooting issues.

Design Team Third-party Libraries Thanks To
  • Arnab Purkayastha (developer)
  • Saurabh Totey (developer)
  • Martin Veillette (developer)
  • Diana López Tavares (lead designer)
  • Michael Dubson (original designer)
  • Wendy Adams
  • John Blanco
  • Ariel Paul
  • Kathy Perkins
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