Blackbody Spectrum

Blackbody Spectrum Screenshot
  • 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 1.0.7

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
How do PhET simulations fit in my middle school program? This contribution was designed by PhET. Sarah Borenstein MS Other Biology
Physics
Earth Science
Chemistry
Alignment of PhET sims with NGSS This contribution was designed by PhET. Trish Loeblein updated by Diana López HS
MS
Other Chemistry
Earth Science
Biology
Physics
PhET Sims Aligned to the Chemistry Curriculum This contribution was designed by PhET. Julia Chamberlain UG-Intro
HS
Other Chemistry
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-Adv
UG-Intro
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 Physics
Biology
Chemistry

Language Download or Run Tips
Albanian All shqip Run now Spektri i trupit absolut të zi
Azerbaijani All Azerbaijani Run now Qara cisim şüalanması
Basque All Euskara Run now Gorputz beltzaren espektroa
Bosnian All Bosanski Run now ZRAČENJE CRNOG TIJELA
Chinese (Simplified) All 中文 (中国) Run now 黑体辐射
Chinese (Traditional) All 中文 (台灣) Run now Blackbody Spectrum_黑體輻射光譜
Croatian All hrvatski Run now Spektar crnog tijela
Czech All čeština Run now Spektrum černého tělesa
Danish All Dansk Run now Sortlegeme-spektrum
Dutch All Nederlands Run now Spectrum zwarte straler
Estonian All Eesti Run now Mustkiirguri spekter
French All français Run now Spectre du corps noir
German All Deutsch Run now Schwarzkörper Strahlung
Greek All Ελληνικά Run now Φάσμα μελανού σώματος
Hebrew All עברית Run now ספקטרום של גוף שחור
Hungarian All magyar Run now Feketetest-sugárzás spektruma
Italian All italiano Run now Spettro del Corpo Nero
Japanese All 日本語 Run now 黒体スペクトル
Kazakh All Kazakh Run now Қара дене спектрі
Korean All 한국어 Run now 흑체 스펙트럼
Latvian All Latviešu Run now Absolūti melna ķermeņa starojums
Mongolian All Монгол (Монгол) Run now Хар биеийн Спектр
Norwegian Bokmal All Norsk bokmål Run now Sortlegemespekter
Norwegian Nynorsk All Norwegian Nynorsk Run now Sortlegemjespekter
Persian All فارسی Run now طیف جسم سیاه
Polish All polski Run now Widmo ciała doskonale czarnego
Portuguese All português Run now Espectro do Corpo Negro
Portuguese (Brazil) All português (Brasil) Run now Espectro de Corpo Negro
Russian All русский Run now Спектр абсолютно чёрного тела
Serbian All Српски Run now Зрачење црног тела
Slovak All Slovenčina Run now Žiarenie čierneho telesa
Spanish All español Run now Radiación del Cuerpo Negro Download teacher tips PDF
Spanish (Mexico) All español (México) Run now Radiación del Cuerpo Negro Download teacher tips PDF
Spanish (Peru) All español (Perú) Run now Espectro del cuerpo negro
Thai All ไทย Run now สเปกตรัมของวัตถุดำ
Turkish All Türkçe Run now Kara Cisim Işıması
Vietnamese All Tiếng Việt Run now Quang phổ của thể đen
Welsh All Welsh Run now Sbectrwm Pelydrydd Cyflawn

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

iPad:
iOS 12+ 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, 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
  • almond-0.2.9.js
  • base64-js-1.2.0.js
  • FileSaver-b8054a2.js
  • font-awesome-4.5.0
  • game-up-camera-1.0.0.js
  • he-1.1.1.js
  • himalaya-0.2.7.js
  • jama-1.0.2
  • jquery-2.1.0.js
  • lodash-4.17.4.js
  • pegjs-0.7.0.js
  • seedrandom-2.4.2.js
  • text-2.0.12.js
  • TextEncoderLite-3c9f6f0.js