🎓 About PhET Simulations

University of Colorado Boulder

Interactive simulations for science and mathematics education. Founded by Nobel Laureate Carl Wieman, PhET provides free, research-based simulations for students worldwide.

🌊 Waves Intro

🌊
Physics Simulation
  • Introduction to wave properties, frequency, amplitude, and wavelength.
  • Interactive PhET simulation
  • Research-based learning
Physics Beginner
Launch

🌊 Wave on a String

🌊
Physics Simulation
  • Adjust frequency, amplitude, damping, and tension. See wave interference and standing waves.
  • Interactive PhET simulation
  • Research-based learning
Physics Beginner
Launch

🌊 Wave Interference

🌊
Physics Simulation
  • Explore constructive and destructive interference patterns.
  • Interactive PhET simulation
  • Research-based learning
Physics Intermediate
Launch

➡️ Vector Addition

➡️
Physics Simulation
  • Learn vector addition and subtraction with interactive tools.
  • Interactive PhET simulation
  • Research-based learning
Physics Intermediate
Launch

📐 Vector Addition Equations

📐
Physics Simulation
  • Solve vector problems using equations and components.
  • Interactive PhET simulation
  • Research-based learning
Physics Advanced
Launch

🌡️ Under Pressure

🌡️
Physics Simulation
  • Explore pressure, temperature, and volume relationships in gases.
  • Interactive PhET simulation
  • Research-based learning
Physics Intermediate
Launch

📐 Trig Tour

📐
Math Simulation
  • Learn trigonometry concepts with interactive unit circle.
  • Interactive PhET simulation
  • Research-based learning
Math Intermediate
Launch

🧊 States of Matter

🧊
Chemistry Simulation
  • Explore how particles behave in solids, liquids, and gases.
  • Interactive PhET simulation
  • Research-based learning
Chemistry Beginner
Launch

🧊 States of Matter Basics

🧊
Chemistry Simulation
  • Basic introduction to states of matter and phase changes.
  • Interactive PhET simulation
  • Research-based learning
Chemistry Beginner
Launch

🔊 Sound Waves

🔊
Physics Simulation
  • Visualize sound waves and explore frequency, amplitude, and pitch.
  • Interactive PhET simulation
  • Research-based learning
Physics Intermediate
Launch

⚛️ Rutherford Scattering

⚛️
Physics Simulation
  • Explore atomic structure through Rutherford's famous experiment.
  • Interactive PhET simulation
  • Research-based learning
Physics Advanced
Launch

🔌 Resistance in a Wire

🔌
Physics Simulation
  • Investigate how length, area, and material affect resistance.
  • Interactive PhET simulation
  • Research-based learning
Physics Intermediate
Launch

⚖️ Reactants, Products & Leftovers

⚖️
Chemistry Simulation
  • Learn about limiting reactants and chemical reactions.
  • Interactive PhET simulation
  • Research-based learning
Chemistry Intermediate
Launch

📊 Ratio and Proportion

📊
Math Simulation
  • Understand ratios, proportions, and their applications.
  • Interactive PhET simulation
  • Research-based learning
Math Beginner
Launch

⚛️ Quantum Measurement

⚛️
Physics Simulation
  • Explore quantum mechanics and measurement principles.
  • Interactive PhET simulation
  • Research-based learning
Physics Advanced
Launch

🪙 Quantum Coin Toss

🪙
Physics Simulation
  • Learn quantum probability and superposition through coin tossing.
  • Interactive PhET simulation
  • Research-based learning
Physics Advanced
Launch

📐 Quadrilateral

📐
Math Simulation
  • Explore properties of quadrilaterals and their classifications.
  • Interactive PhET simulation
  • Research-based learning
Math Beginner
Launch

🎮 Proportion Playground

🎮
Math Simulation
  • Interactive playground for learning proportions and ratios.
  • Interactive PhET simulation
  • Research-based learning
Math Beginner
Launch

📊 Projectile Sampling Distributions

📊
Math Simulation
  • Learn about sampling distributions through projectile motion.
  • Interactive PhET simulation
  • Research-based learning
Math Advanced
Launch

🎯 Projectile Motion

🎯
Physics Simulation
  • Explore projectile motion with adjustable angle and velocity.
  • Interactive PhET simulation
  • Research-based learning
Physics Intermediate
Launch

📊 Projectile Data Lab

📊
Physics Simulation
  • Collect and analyze data from projectile motion experiments.
  • Interactive PhET simulation
  • Research-based learning
Physics Advanced
Launch

🎲 Plinko Probability

🎲
Math Simulation
  • Learn probability through the classic Plinko game.
  • Interactive PhET simulation
  • Research-based learning
Math Intermediate
Launch

🧪 pH Scale

🧪
Chemistry Simulation
  • Explore pH scale and acid-base properties of solutions.
  • Interactive PhET simulation
  • Research-based learning
Chemistry Intermediate
Launch

🧪 pH Scale Basics

🧪
Chemistry Simulation
  • Basic introduction to pH scale and acid-base concepts.
  • Interactive PhET simulation
  • Research-based learning
Chemistry Beginner
Launch

⏰ Pendulum Lab

⏰
Physics Simulation
  • Investigate pendulum motion and factors affecting period.
  • Interactive PhET simulation
  • Research-based learning
Physics Intermediate
Launch

⚡ Ohm's Law

⚡
Physics Simulation
  • Explore the relationship between voltage, current, and resistance.
  • Interactive PhET simulation
  • Research-based learning
Physics Intermediate
Launch

🔢 Number Play

🔢
Math Simulation
  • Interactive number games and basic arithmetic concepts.
  • Interactive PhET simulation
  • Research-based learning
Math Beginner
Launch

🔢 Number Pairs

🔢
Math Simulation
  • Learn number relationships and basic operations.
  • Interactive PhET simulation
  • Research-based learning
Math Beginner
Launch

📏 Number Line Operations

📏
Math Simulation
  • Practice arithmetic operations using number lines.
  • Interactive PhET simulation
  • Research-based learning
Math Beginner
Launch

📏 Number Line Integers

📏
Math Simulation
  • Learn about integers and their positions on number lines.
  • Interactive PhET simulation
  • Research-based learning
Math Beginner
Launch

📏 Number Line Distance

📏
Math Simulation
  • Understand distance and absolute value on number lines.
  • Interactive PhET simulation
  • Research-based learning
Math Beginner
Launch

🔢 Number Compare

🔢
Math Simulation
  • Compare numbers and learn greater than, less than concepts.
  • Interactive PhET simulation
  • Research-based learning
Math Beginner
Launch

🌊 Normal Modes

🌊
Physics Simulation
  • Explore normal modes of vibration in various systems.
  • Interactive PhET simulation
  • Research-based learning
Physics Advanced
Launch

🧠 Neuron

🧠
Biology Simulation
  • Learn about neuron structure and electrical signaling.
  • Interactive PhET simulation
  • Research-based learning
Biology Intermediate
Launch

🧬 Natural Selection

🧬
Biology Simulation
  • Watch evolution in action and see how populations adapt.
  • Interactive PhET simulation
  • Research-based learning
Biology Intermediate
Launch

🌌 My Solar System

🌌
Physics Simulation
  • Build your own solar system and explore orbital mechanics.
  • Interactive PhET simulation
  • Research-based learning
Physics Intermediate
Launch

💡 Molecules and Light

💡
Chemistry Simulation
  • Explore how molecules interact with different types of light.
  • Interactive PhET simulation
  • Research-based learning
Chemistry Advanced
Launch

🧪 Molecule Shapes

🧪
Chemistry Simulation
  • Build molecules and explore their 3D shapes and properties.
  • Interactive PhET simulation
  • Research-based learning
Chemistry Intermediate
Launch

🧪 Molecule Shapes Basics

🧪
Chemistry Simulation
  • Basic introduction to molecular geometry and shapes.
  • Interactive PhET simulation
  • Research-based learning
Chemistry Beginner
Launch

🧪 Molecule Polarity

🧪
Chemistry Simulation
  • Learn about molecular polarity and intermolecular forces.
  • Interactive PhET simulation
  • Research-based learning
Chemistry Advanced
Launch

🧪 Molarity

🧪
Chemistry Simulation
  • Learn about molarity and concentration calculations.
  • Interactive PhET simulation
  • Research-based learning
Chemistry Intermediate
Launch

⚛️ Models of the Hydrogen Atom

⚛️
Physics Simulation
  • Explore different models of atomic structure.
  • Interactive PhET simulation
  • Research-based learning
Physics Advanced
Launch

📊 Mean, Share and Balance

📊
Math Simulation
  • Learn about mean, sharing, and balancing in mathematics.
  • Interactive PhET simulation
  • Research-based learning
Math Intermediate
Launch

🔗 Masses and Springs

🔗
Physics Simulation
  • Explore harmonic motion with masses and springs.
  • Interactive PhET simulation
  • Research-based learning
Physics Intermediate
Launch

🔗 Masses and Springs Basics

🔗
Physics Simulation
  • Basic introduction to harmonic motion concepts.
  • Interactive PhET simulation
  • Research-based learning
Physics Beginner
Launch

🔢 Make a Ten

🔢
Math Simulation
  • Learn addition strategies and number bonds.
  • Interactive PhET simulation
  • Research-based learning
Math Beginner
Launch

🧲 Magnets and Electromagnets

🧲
Physics Simulation
  • Explore magnetic fields and build electromagnets.
  • Interactive PhET simulation
  • Research-based learning
Physics Beginner
Launch

🧭 Magnet and Compass

🧭
Physics Simulation
  • Learn about magnetic fields using compasses.
  • Interactive PhET simulation
  • Research-based learning
Physics Beginner
Launch

📊 Least Squares Regression

📊
Math Simulation
  • Learn about linear regression and data fitting.
  • Interactive PhET simulation
  • Research-based learning
Math Advanced
Launch

🪐 Kepler's Laws

🪐
Physics Simulation
  • Explore planetary motion and Kepler's laws of planetary motion.
  • Interactive PhET simulation
  • Research-based learning
Physics Advanced
Launch

⚡ John Travoltage

⚡
Physics Simulation
  • Learn about static electricity and electric discharge.
  • Interactive PhET simulation
  • Research-based learning
Physics Beginner
Launch

⚛️ Isotopes and Atomic Mass

⚛️
Chemistry Simulation
  • Learn about isotopes and how they affect atomic mass.
  • Interactive PhET simulation
  • Research-based learning
Chemistry Intermediate
Launch

🔗 Hooke's Law

🔗
Physics Simulation
  • Explore the relationship between force and spring displacement.
  • Interactive PhET simulation
  • Research-based learning
Physics Intermediate
Launch

🌍 Greenhouse Effect

🌍
Physics Simulation
  • Learn about greenhouse gases and climate change.
  • Interactive PhET simulation
  • Research-based learning
Physics Intermediate
Launch

🌍 Gravity Force Lab

🌍
Physics Simulation
  • Explore gravitational forces between masses.
  • Interactive PhET simulation
  • Research-based learning
Physics Intermediate
Launch

🌍 Gravity Force Lab Basics

🌍
Physics Simulation
  • Basic introduction to gravitational forces.
  • Interactive PhET simulation
  • Research-based learning
Physics Beginner
Launch

🪐 Gravity and Orbits

🪐
Physics Simulation
  • Learn about gravitational forces and orbital motion.
  • Interactive PhET simulation
  • Research-based learning
Physics Intermediate
Launch

📐 Graphing Slope-Intercept

📐
Math Simulation
  • Learn about slope-intercept form and graphing lines.
  • Interactive PhET simulation
  • Research-based learning
Math Intermediate
Launch

📐 Graphing Quadratics

📐
Math Simulation
  • Explore quadratic functions and their graphs.
  • Interactive PhET simulation
  • Research-based learning
Math Intermediate
Launch

📐 Graphing Lines

📐
Math Simulation
  • Learn about linear functions and graphing.
  • Interactive PhET simulation
  • Research-based learning
Math Beginner
Launch

🔍 Geometric Optics

🔍
Physics Simulation
  • Explore lenses, mirrors, and optical systems.
  • Interactive PhET simulation
  • Research-based learning
Physics Advanced
Launch

🔍 Geometric Optics Basics

🔍
Physics Simulation
  • Basic introduction to geometric optics concepts.
  • Interactive PhET simulation
  • Research-based learning
Physics Intermediate
Launch

⚡ Generator

⚡
Physics Simulation
  • Learn about electromagnetic induction and generators.
  • Interactive PhET simulation
  • Research-based learning
Physics Advanced
Launch

🧬 Gene Expression Essentials

🧬
Biology Simulation
  • Learn about gene expression and protein synthesis.
  • Interactive PhET simulation
  • Research-based learning
Biology Advanced
Launch

💨 Gases Intro

💨
Chemistry Simulation
  • Introduction to gas properties and behavior.
  • Interactive PhET simulation
  • Research-based learning
Chemistry Beginner
Launch

💨 Gas Properties

💨
Chemistry Simulation
  • Explore gas laws and properties of ideal gases.
  • Interactive PhET simulation
  • Research-based learning
Chemistry Intermediate
Launch

📐 Function Builder

📐
Math Simulation
  • Build and explore mathematical functions.
  • Interactive PhET simulation
  • Research-based learning
Math Intermediate
Launch

📐 Function Builder Basics

📐
Math Simulation
  • Basic introduction to function concepts.
  • Interactive PhET simulation
  • Research-based learning
Math Beginner
Launch

🛑 Friction

🛑
Physics Simulation
  • Explore friction forces and their effects on motion.
  • Interactive PhET simulation
  • Research-based learning
Physics Intermediate
Launch

🔢 Fractions Mixed Numbers

🔢
Math Simulation
  • Learn about fractions and mixed numbers.
  • Interactive PhET simulation
  • Research-based learning
Math Beginner
Launch

🔢 Fractions Intro

🔢
Math Simulation
  • Introduction to fractions and their representations.
  • Interactive PhET simulation
  • Research-based learning
Math Beginner
Launch

🔢 Fractions Equality

🔢
Math Simulation
  • Learn about equivalent fractions and equality.
  • Interactive PhET simulation
  • Research-based learning
Math Beginner
Launch

🔢 Fraction Matcher

🔢
Math Simulation
  • Match fractions with their visual representations.
  • Interactive PhET simulation
  • Research-based learning
Math Beginner
Launch

🌊 Fourier Making Waves

🌊
Physics Simulation
  • Learn about Fourier analysis and wave synthesis.
  • Interactive PhET simulation
  • Research-based learning
Physics Advanced
Launch

⚡ Forces and Motion Basics

⚡
Physics Simulation
  • Basic introduction to forces and motion concepts.
  • Interactive PhET simulation
  • Research-based learning
Physics Beginner
Launch

⚡ Faraday's Law

⚡
Physics Simulation
  • Explore electromagnetic induction and Faraday's law.
  • Interactive PhET simulation
  • Research-based learning
Physics Advanced
Launch

⚡ Faraday's Electromagnetic Lab

⚡
Physics Simulation
  • Comprehensive lab for electromagnetic induction concepts.
  • Interactive PhET simulation
  • Research-based learning
Physics Advanced
Launch

📐 Expression Exchange

📐
Math Simulation
  • Learn about algebraic expressions and equations.
  • Interactive PhET simulation
  • Research-based learning
Math Intermediate
Launch

⚖️ Equality Explorer

⚖️
Math Simulation
  • Explore equality and inequality concepts.
  • Interactive PhET simulation
  • Research-based learning
Math Intermediate
Launch

⚖️ Equality Explorer Two Variables

⚖️
Math Simulation
  • Learn about equations with two variables.
  • Interactive PhET simulation
  • Research-based learning
Math Advanced
Launch

⚖️ Equality Explorer Basics

⚖️
Math Simulation
  • Basic introduction to equality and equations.
  • Interactive PhET simulation
  • Research-based learning
Math Beginner
Launch

🎢 Energy Skate Park

🎢
Physics Simulation
  • Explore conservation of energy with skateboard tracks.
  • Interactive PhET simulation
  • Research-based learning
Physics Beginner
Launch

🎢 Energy Skate Park Basics

🎢
Physics Simulation
  • Basic introduction to energy conservation concepts.
  • Interactive PhET simulation
  • Research-based learning
Physics Beginner
Launch

⚡ Energy Forms and Changes

⚡
Physics Simulation
  • Learn about different forms of energy and transformations.
  • Interactive PhET simulation
  • Research-based learning
Physics Intermediate
Launch

🌊 Diffusion

🌊
Chemistry Simulation
  • Explore molecular diffusion and concentration gradients.
  • Interactive PhET simulation
  • Research-based learning
Chemistry Intermediate
Launch

⚖️ Density

⚖️
Chemistry Simulation
  • Learn about density and buoyancy concepts.
  • Interactive PhET simulation
  • Research-based learning
Chemistry Beginner
Launch

📊 Curve Fitting

📊
Math Simulation
  • Learn about curve fitting and data analysis.
  • Interactive PhET simulation
  • Research-based learning
Math Advanced
Launch

⚡ Coulomb's Law

⚡
Physics Simulation
  • Explore electrostatic forces between charged particles.
  • Interactive PhET simulation
  • Research-based learning
Physics Advanced
Launch

🧪 Concentration

🧪
Chemistry Simulation
  • Learn about solution concentration and molarity.
  • Interactive PhET simulation
  • Research-based learning
Chemistry Intermediate
Launch

🌈 Color Vision

🌈
Physics Simulation
  • Learn about color perception and light properties.
  • Interactive PhET simulation
  • Research-based learning
Physics Intermediate
Launch

💥 Collision Lab

💥
Physics Simulation
  • Explore elastic and inelastic collisions.
  • Interactive PhET simulation
  • Research-based learning
Physics Intermediate
Launch

🔌 Circuit Construction Kit DC

🔌
Physics Simulation
  • Build DC circuits with batteries, resistors, and wires.
  • Interactive PhET simulation
  • Research-based learning
Physics Beginner
Launch

🔌 Circuit Construction Kit DC Virtual Lab

🔌
Physics Simulation
  • Advanced DC circuit construction and analysis.
  • Interactive PhET simulation
  • Research-based learning
Physics Intermediate
Launch

🔌 Circuit Construction Kit AC

🔌
Physics Simulation
  • Build AC circuits with capacitors, inductors, and resistors.
  • Interactive PhET simulation
  • Research-based learning
Physics Intermediate
Launch

🔌 Circuit Construction Kit AC Virtual Lab

🔌
Physics Simulation
  • Advanced AC circuit construction and analysis.
  • Interactive PhET simulation
  • Research-based learning
Physics Advanced
Launch

⚡ Charges and Fields

⚡
Physics Simulation
  • Explore electric fields and forces around charged particles.
  • Interactive PhET simulation
  • Research-based learning
Physics Intermediate
Launch

🔗 Chains

🔗
Math Simulation
  • Learn about sequences, series, and mathematical chains.
  • Interactive PhET simulation
  • Research-based learning
Math Intermediate
Launch

📊 Center and Variability

📊
Math Simulation
  • Learn about measures of center and variability in statistics.
  • Interactive PhET simulation
  • Research-based learning
Math Intermediate
Launch

⚡ Capacitor Lab Basics

⚡
Physics Simulation
  • Learn about capacitors and their charging behavior.
  • Interactive PhET simulation
  • Research-based learning
Physics Intermediate
Launch

📐 Calculus Grapher

📐
Math Simulation
  • Explore calculus concepts through interactive graphing.
  • Interactive PhET simulation
  • Research-based learning
Math Advanced
Launch

🏊 Buoyancy

🏊
Physics Simulation
  • Learn about buoyant forces and Archimedes' principle.
  • Interactive PhET simulation
  • Research-based learning
Physics Intermediate
Launch

🏊 Buoyancy Basics

🏊
Physics Simulation
  • Basic introduction to buoyancy and floating objects.
  • Interactive PhET simulation
  • Research-based learning
Physics Beginner
Launch

💥 Bumper

💥
Physics Simulation
  • Learn about collisions and momentum conservation.
  • Interactive PhET simulation
  • Research-based learning
Physics Beginner
Launch

⚛️ Build an Atom

⚛️
Chemistry Simulation
  • Build atoms by adding protons, neutrons, and electrons.
  • Interactive PhET simulation
  • Research-based learning
Chemistry Beginner
Launch

⚛️ Build a Nucleus

⚛️
Physics Simulation
  • Learn about nuclear structure and stability.
  • Interactive PhET simulation
  • Research-based learning
Physics Advanced
Launch

🧪 Build a Molecule

🧪
Chemistry Simulation
  • Build molecules and explore their properties.
  • Interactive PhET simulation
  • Research-based learning
Chemistry Intermediate
Launch

🔢 Build a Fraction

🔢
Math Simulation
  • Learn about fractions through interactive building.
  • Interactive PhET simulation
  • Research-based learning
Math Beginner
Launch

🌡️ Blackbody Spectrum

🌡️
Physics Simulation
  • Explore blackbody radiation and temperature relationships.
  • Interactive PhET simulation
  • Research-based learning
Physics Advanced
Launch

🌈 Bending Light

🌈
Physics Simulation
  • Explore refraction and reflection of light.
  • Interactive PhET simulation
  • Research-based learning
Physics Intermediate
Launch

🧪 Beer's Law Lab

🧪
Chemistry Simulation
  • Learn about Beer's law and spectrophotometry.
  • Interactive PhET simulation
  • Research-based learning
Chemistry Advanced
Launch

🎈 Balloons and Static Electricity

🎈
Physics Simulation
  • Learn about static electricity and charge transfer.
  • Interactive PhET simulation
  • Research-based learning
Physics Beginner
Launch

⚖️ Balancing Chemical Equations

⚖️
Chemistry Simulation
  • Learn to balance chemical equations and stoichiometry.
  • Interactive PhET simulation
  • Research-based learning
Chemistry Intermediate
Launch

⚖️ Balancing Act

⚖️
Physics Simulation
  • Learn about torque and rotational equilibrium.
  • Interactive PhET simulation
  • Research-based learning
Physics Beginner
Launch

⚛️ Atomic Interactions

⚛️
Physics Simulation
  • Explore atomic interactions and quantum mechanics.
  • Interactive PhET simulation
  • Research-based learning
Physics Advanced
Launch

🔢 Arithmetic

🔢
Math Simulation
  • Practice basic arithmetic operations and number sense.
  • Interactive PhET simulation
  • Research-based learning
Math Beginner
Launch

📐 Area Model Multiplication

📐
Math Simulation
  • Learn multiplication using area models.
  • Interactive PhET simulation
  • Research-based learning
Math Beginner
Launch

📐 Area Model Introduction

📐
Math Simulation
  • Introduction to area models for multiplication.
  • Interactive PhET simulation
  • Research-based learning
Math Beginner
Launch

📐 Area Model Decimals

📐
Math Simulation
  • Learn about decimals using area models.
  • Interactive PhET simulation
  • Research-based learning
Math Beginner
Launch

📐 Area Model Algebra

📐
Math Simulation
  • Use area models to understand algebraic concepts.
  • Interactive PhET simulation
  • Research-based learning
Math Intermediate
Launch

📐 Area Builder

📐
Math Simulation
  • Build shapes and explore area concepts.
  • Interactive PhET simulation
  • Research-based learning
Math Beginner
Launch

🧪 Acid-Base Solutions

🧪
Chemistry Simulation
  • Learn about acids, bases, and pH in solutions.
  • Interactive PhET simulation
  • Research-based learning
Chemistry Intermediate
Launch

🎓 PhET Features

🔬

Research-Based

Founded by Nobel Laureate Carl Wieman, PhET simulations are based on extensive educational research.

🌍

Free & Accessible

All simulations are completely free and available in multiple languages for students worldwide.

🎯

Interactive Learning

Engage with concepts through interactive exploration, making abstract ideas concrete and understandable.