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Alpha Decay
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Watch alpha particles escape from a polonium nucleus, causing radioactive alpha decay. See how random decay times relate to the half life.

Subject:
Physical Science
Science
Material Type:
Simulation
Provider:
University of Colorado Boulder
Provider Set:
PhET Interactive Simulations
Author:
Carl Wieman
Danielle Harlow
John Blanco
Kathy Perkins
Noah Podolefsky
Ron LeMaster
Sam McKagan
Wendy Adams
Date Added:
07/21/2011
Alpha Decay
Unrestricted Use
CC BY
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Watch alpha particles escape from a polonium nucleus, causing radioactive alpha decay. See how random decay times relate to the half life.

Subject:
Physical Science
Science
Material Type:
Simulation
Provider:
University of Colorado Boulder
Provider Set:
PhET Interactive Simulations
Author:
Carl Wieman
Danielle Harlow
John Blanco
Kathy Perkins
Noah Podolefsky
Ron LeMaster
Sam McKagan
Wendy Adams
Date Added:
07/21/2011
Area Builder
Unrestricted Use
CC BY
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Create your own shapes using colorful blocks and explore the relationship between perimeter and area. Compare the area and perimeter of two shapes side-by-side. Challenge yourself in the game screen to build shapes or find the area of funky figures. Try to collect lots of stars!

Subject:
Math
Material Type:
Simulation
Provider:
University of Colorado Boulder
Provider Set:
PhET Interactive Simulations
Author:
Amanda McGarry
Ariel Paul
Beth Stade
Bryce Gruneich
John Blanco
Karina Hensberry (lead)
Kathy Perkins
Date Added:
10/27/2023
Atomic Interactions
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Explore the interactions between various combinations of two atoms. Turn on the force arrows to see either the total force acting on the atoms or the individual attractive and repulsive forces. Try the "Adjustable Attraction" atom to see how changing the parameters affects the interaction.

Subject:
Physical Science
Science
Material Type:
Simulation
Provider:
University of Colorado Boulder
Provider Set:
PhET Interactive Simulations
Author:
Carl Wieman
Jack Barbera
John Blanco
Kathy Perkins
Kelly Lancaster
Noah Podolefsky
Wendy Adams
Date Added:
08/01/2009
Atomic Interactions
Unrestricted Use
CC BY
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Explore the interactions between various combinations of two atoms. Turn on the force arrows to see either the total force acting on the atoms or the individual attractive and repulsive forces. Try the "Adjustable Attraction" atom to see how changing the parameters affects the interaction.

Subject:
Chemistry
Science
Material Type:
Simulation
Provider:
University of Colorado Boulder
Provider Set:
PhET Interactive Simulations
Author:
Carl Wieman
Jack Barbera
John Blanco
Kathy Perkins
Kelly Lancaster
Noah Podolefsky
Wendy Adams
Date Added:
08/01/2009
Build a Molecule
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Starting from atoms, see how many molecules you can build. Collect your molecules and see them in 3D!

Subject:
Physical Science
Science
Material Type:
Simulation
Provider:
University of Colorado Boulder
Provider Set:
PhET Interactive Simulations
Author:
Christine
Christine Denison
Denison
Emily Moore
John Blanco
Jonathan Olson
Kathy Perkins
Kelly Lancaster
Sam Reid
Date Added:
06/27/2011
Build an Atom
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Build an atom out of protons, neutrons, and electrons, and see how the element, charge, and mass change. Then play a game to test your ideas!

Subject:
Physical Science
Science
Material Type:
Simulation
Provider:
University of Colorado Boulder
Provider Set:
PhET Interactive Simulations
Author:
Jack Barbera
John Blanco
Kathy Perkins
Kelly Lancaster
Patricia Loeblein
Robert Parson
Sam Reid
Suzanne Brahmia
o
Date Added:
07/13/2011
Désintrégration alpha (simulation PhET)
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Une série de simulations provenant de l’Université de Colorado à Boulder pour les 9e – 12e au sujet des sciences. Cette simulation démontre le processus de la désintrégration alpha.

Regardez les particules alpha s'échapper d'un noyau de polonium, provoquant une désintégration alpha radioactive. Observez comment les temps de désintégration aléatoires sont liés à la demi-vie.

Subject:
Science
Material Type:
Simulation
Author:
Danielle Harlow
John Blanco
Kathy Perkins
Noah Podolefsky
Ron LeMaster
Sam McKagan
University of Colorado Boulder
Wendy Adams
Carl Wieman
Date Added:
01/08/2024
Energy Forms and Changes
Unrestricted Use
CC BY
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This simulation lets learners explore how heating and cooling adds or removes energy. Use a slider to heat blocks of iron or brick to see the energy flow. Next, build your own system to convert mechanical, light, or chemical energy into electrical or thermal energy. (Learners can choose sunlight, steam, flowing water, or mechanical energy to power their systems.) The simulation allows students to visualize energy transformation and describe how energy flows in various systems. Through examples from everyday life, it also bolsters understanding of conservation of energy. This item is part of a larger collection of simulations developed by the Physics Education Technology project (PhET).

Subject:
Physical Science
Science
Material Type:
Simulation
Provider:
University of Colorado Boulder
Provider Set:
PhET Interactive Simulations
Author:
Ariel Paul
Emily Moore
John Blanco
Kathy Perkins
Noah Podolefsky
Trish Loeblein
Date Added:
04/25/2013
Gravity and Orbits
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Move the sun, earth, moon and space station to see how it affects their gravitational forces and orbital paths. Visualize the sizes and distances between different heavenly bodies, and turn off gravity to see what would happen without it!

Subject:
Astronomy
Physical Science
Science
Material Type:
Simulation
Provider:
University of Colorado Boulder
Provider Set:
PhET Interactive Simulations
Author:
Chris Malley
Emily Moore
John Blanco
Jon Olson
Kathy Perkins
Noah Podolefsky
Sam Reid
Trish Loeblein
Date Added:
02/07/2011
‪Gravité et orbites‬ (Simulation PhET)
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Une série de simulations provenant de l’Université de Colorado à Boulder pour les 9e – 12e au sujet des sciences.

« Déplacez le soleil, la Terre, la lune et la station spatiale pour observer comment cela affecte leurs forces gravitationnelles et leurs trajectoires orbitales. Visualisez les tailles et les distances entre différents corps célestes, et désactivez la gravité pour voir ce qui se passerait sans elle ! »

Subject:
Astronomy
Earth Science
Physics
Science
Material Type:
Simulation
Author:
Chris Malley
Emily Moore
John Blanco
Jon Olson
Kathy Perkins
Noah Podolefsky
Sam Reid
Trish Loeblein
University of Colorado Boulder
Date Added:
01/09/2024
The Greenhouse Effect
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How do greenhouse gases affect the climate? Explore the atmosphere during the ice age and today. What happens when you add clouds? Change the greenhouse gas concentration and see how the temperature changes. Then compare to the effect of glass panes. Zoom in and see how light interacts with molecules. Do all atmospheric gases contribute to the greenhouse effect?

Subject:
Environmental Science
Physical Science
Science
Material Type:
Simulation
Provider:
University of Colorado Boulder
Provider Set:
PhET Interactive Simulations
Author:
Carl Wieman
Danielle Harlow
John Blanco
Kathy Perkins
Kelly Lancaster
Robert Parson
Ron LeMaster
Trish Loeblein
Wendy Adams
Date Added:
11/15/2007
‪Interactions atomiques‬ - (Simulation PhET)
Unrestricted Use
CC BY
Rating
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Une série de simulations provenant de l’Université de Colorado à Boulder pour les 9e – 12e au sujet des sciences. Cette simulation démontre le processus des interactions atomiques.

Explorez les interactions entre diverses combinaisons de deux atomes. Activez les flèches de force pour voir soit la force totale agissant sur les atomes, soit les forces attractives et répulsives individuelles. Essayez l'atome "Attraction réglable" pour voir comment le changement des paramètres affecte l'interaction.

Subject:
Chemistry
Science
Material Type:
Simulation
Author:
Jack Barbera
John Blanco
Kathy Perkins
Kelly Lancaster
Noah Podolefsky
University of Colorado Boulder
Wendy Adams
Carl Wieman
Date Added:
01/08/2024
Isotopes and Atomic Mass
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Are all atoms of an element the same? How can you tell one isotope from another? Use the sim to learn about isotopes and how abundance relates to the average atomic mass of an element.

Subject:
Physical Science
Science
Material Type:
Simulation
Provider:
University of Colorado Boulder
Provider Set:
PhET Interactive Simulations
Author:
Emily Moore
John Blanco
Kathy Perkins
Kelly Lancaster
Robert Parson
Sam Reid
Trish Loeblein
Date Added:
07/18/2011
Molecules and Light
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Do you ever wonder how a greenhouse gas affects the climate, or why the ozone layer is important? Use the sim to explore how light interacts with molecules in our atmosphere.

Subject:
Physical Science
Science
Material Type:
Simulation
Provider:
University of Colorado Boulder
Provider Set:
PhET Interactive Simulations
Author:
John Blanco
Kathy Perkins
Kelly Lancaster
Robert Parson
Trish Loeblein
Date Added:
10/01/2010
‪Molécules et lumière‬
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Une série de simulations provenant de l’Université de Colorado à Boulder pour les 9e – 12e au sujet des sciences.

«Vous demandez-vous parfois comment un gaz à effet de serre affecte le climat, ou pourquoi la couche d'ozone est importante ? Utilisez la simulation pour explorer comment la lumière interagit avec les molécules dans notre atmosphère.»

Subject:
Earth Science
Physics
Science
Material Type:
Simulation
Author:
John Blanco
Kathy Perkins
Kelly Lancaster
Robert Parson
Trish Loeblein
University of Colorado Boulder
Date Added:
01/08/2024
Nuclear Fission
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Start a chain reaction, or introduce non-radioactive isotopes to prevent one. Control energy production in a nuclear reactor! (Previously part of the Nuclear Physics simulation - now there are separate Alpha Decay and Nuclear Fission sims.)

Subject:
Physical Science
Science
Material Type:
Simulation
Provider:
University of Colorado Boulder
Provider Set:
PhET Interactive Simulations
Author:
Carl Wieman
Danielle Harlow
John Blanco
Kathy Perkins
Noah Podolefsky
Ron LeMaster
Sam McKagan
Wendy Adams
Date Added:
07/19/2011
Radioactive Dating Game
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Learn about different types of radiometric dating, such as carbon dating. Understand how decay and half life work to enable radiometric dating to work. Play a game that tests your ability to match the percentage of the dating element that remains to the age of the object.

Subject:
Physical Science
Science
Material Type:
Simulation
Provider:
University of Colorado Boulder
Provider Set:
PhET Interactive Simulations
Author:
Carl Wieman
John Blanco
Kathy Perkins
Noah Podolefsky
Wendy Adams
Date Added:
01/01/2009