Is PhET Interactive Simulations free?

Yes. PhET Interactive Simulations is free and does not ask you to register or hand over an email address before you can use it.

How long does PhET Interactive Simulations take?

Five to fifteen minutes of proper attention. We file it under "Coffee break" — free lab equipment for physics, chemistry and maths.

Does PhET Interactive Simulations work on a phone?

Yes. PhET Interactive Simulations works on a phone as well as it does on a laptop.

Explain Everything

PhET Interactive Simulations

Free lab equipment for physics, chemistry and maths

Visit phet.colorado.edu More Explain Everything

phet.colorado.edu

Coffee break · Works anywhere

Free, no sign-up · online since 2002

What PhET Interactive Simulations actually is

The University of Colorado maintains around 160 browser simulations covering circuits, gas laws, wave interference, natural selection, molecule building and projectile motion. Each is designed for classroom use, giving you sliders and meters rather than instructions to read.

Why it is worth your time

The circuit construction kit lets you short a battery and watch the wire glow, which is a lesson no school can safely give you with real components.

Common questions

Is PhET Interactive Simulations free?: Yes. PhET Interactive Simulations is free and does not ask you to register or hand over an email address before you can use it.
How long does PhET Interactive Simulations take?: Five to fifteen minutes of proper attention. We file it under "Coffee break" — free lab equipment for physics, chemistry and maths.
Does PhET Interactive Simulations work on a phone?: Yes. PhET Interactive Simulations works on a phone as well as it does on a laptop.
What kind of site is PhET Interactive Simulations?: We list it under Explain Everything — hard things, made suddenly obvious. The circuit construction kit lets you short a battery and watch the wire glow, which is a lesson no school can safely give you with real components.

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Explain Everything

PhET Interactive Simulations

Free lab equipment for physics, chemistry and maths

Visit phet.colorado.edu More Explain Everything

phet.colorado.edu

Coffee break · Works anywhere

Free, no sign-up · online since 2002

What PhET Interactive Simulations actually is

Why it is worth your time

The circuit construction kit lets you short a battery and watch the wire glow, which is a lesson no school can safely give you with real components.

Common questions

Is PhET Interactive Simulations free?: Yes. PhET Interactive Simulations is free and does not ask you to register or hand over an email address before you can use it.
How long does PhET Interactive Simulations take?: Five to fifteen minutes of proper attention. We file it under "Coffee break" — free lab equipment for physics, chemistry and maths.
Does PhET Interactive Simulations work on a phone?: Yes. PhET Interactive Simulations works on a phone as well as it does on a laptop.
What kind of site is PhET Interactive Simulations?: We list it under Explain Everything — hard things, made suddenly obvious. The circuit construction kit lets you short a battery and watch the wire glow, which is a lesson no school can safely give you with real components.