Is embedding the torque simulator free?

Yes. It is free to embed on any site, with no account, no API key and no usage limits. The whole simulation runs in your visitor’s own browser, so there is no server cost — we only ask that you keep the small "Torque & Beam Balance Simulator by LK Forge" credit line that comes with the embed code.

What can visitors do with the embedded simulator?

They set the mass and the distance from the pivot for a weight on each side of a balance beam. The tool draws the beam tipping toward the side with the larger torque and sitting level when the moments match, with a live panel showing each torque τ = m·g·d, the net torque and whether the beam is balanced, tips left or tips right.

Does the embed teach the principle of moments?

Yes. Each torque is computed directly as τ = m·g·d, and the beam is level exactly when the left and right torques are equal (m_L·d_L = m_R·d_R). Students can see that a small mass far from the pivot balances a large mass close to it, which is the principle of moments and the basis of levers and mechanical advantage.

What iframe height should I use, especially on mobile?

The snippet ships with height="820", which is tall enough that the balance beam, the four sliders, the reset button and the readouts all fit without clipping even on a narrow phone where everything stacks into a single column. On a wider page the widget simply centres within its max-width of 560px. If you want it shorter you can lower the height, but 820 is the safe default across screen sizes.

Where can I embed it — WordPress, Wix, Squarespace, Notion?

Anywhere you can add HTML, because it is a standard iframe. In WordPress use a Custom HTML block; in Squarespace a Code/Embed block; in Wix an Embed HTML element; in Ghost an HTML card; in Notion paste the /embed/torque/ URL as an embed. On a plain HTML page or an intranet, paste the snippet straight into the markup.

Does the embedded simulator track visitors or set cookies?

No. Everything runs locally in the visitor’s browser — nothing is uploaded. The embed sets no tracking cookies and sends no analytics, so it is safe to place on a privacy-sensitive site, an intranet, or a page for students.

Widgets

How to Add a Torque Simulator to Your Website

LK Forge · 4 min read · Updated September 2026

You can add a full torque and beam-balance simulator to any website, blog, or classroom page with a single line of code — free, with no sign-up, no plugin, and no script to install. Visitors place weights on a lever and balance the moments. This guide covers the fastest way to embed the Torque & Beam Balance Simulator, what it teaches, and where it works.

The quickest way: paste one embed snippet

An embed is just an <iframe> that loads the simulator from lkforge.com, plus a small credit line. Copy this into your page’s HTML where you want the widget to appear:

<iframe src="https://lkforge.com/embed/torque/"
        width="100%" height="820" loading="lazy"
        style="border:0;max-width:560px"
        title="Torque & Beam Balance Simulator by LK Forge"></iframe>
<p><a href="https://lkforge.com/tools/physics/torque/">Torque & Beam Balance Simulator</a>
   by <a href="https://lkforge.com/">LK Forge</a></p>

The <iframe> is the live simulator; the <p> underneath is a plain credit link. Keep that line — the visible link is what keeps the widget free to embed. You can also copy this exact code straight from the LK Forge widget gallery.

What the widget shows

The simulator opens with a balanced beam, so a visitor sees equilibrium immediately and can then upset it:

Two masses, two distances: four sliders, one pair per side of the pivot.
The beam responds: it tips toward the larger torque and settles level when the moments match.
Trade mass for distance: see a light weight far out balance a heavy weight close in.
Live readouts: left torque, right torque, net torque and the balance state.

Pick the right height

The snippet uses height="820", which fits the beam, the sliders, the button and the readouts without clipping even on a narrow phone, where they stack into one column. On a wider page the widget centres within its max-width:560px. That single height works across screen sizes, so there is nothing to tweak for mobile.

Where it works

Because it is a standard iframe, the embed works anywhere you can add HTML:

WordPress: add a Custom HTML block and paste the snippet.
Squarespace: use a Code / Embed block.
Wix: add an Embed HTML / iframe element.
Ghost: insert an HTML card.
Notion: paste the /embed/torque/ URL and choose "Create embed".
Plain HTML, an intranet, or a lesson page: paste the snippet straight into the markup.

That’s the whole job. Copy the embed code from the widget gallery and paste it wherever a lesson or a blog post on torque, moments, levers or simple machines needs a beam students can actually balance.

Grab the embed code from the LK Forge widget gallery — free, no sign-up.

Open the Torque Simulator

Frequently asked questions

Is embedding the torque simulator free?: Yes. It is free to embed on any site, with no account, no API key and no usage limits. The whole simulation runs in your visitor’s own browser, so there is no server cost — we only ask that you keep the small "Torque & Beam Balance Simulator by LK Forge" credit line that comes with the embed code.
What can visitors do with the embedded simulator?: They set the mass and the distance from the pivot for a weight on each side of a balance beam. The tool draws the beam tipping toward the side with the larger torque and sitting level when the moments match, with a live panel showing each torque τ = m·g·d, the net torque and whether the beam is balanced, tips left or tips right.
Does the embed teach the principle of moments?: Yes. Each torque is computed directly as τ = m·g·d, and the beam is level exactly when the left and right torques are equal (m_L·d_L = m_R·d_R). Students can see that a small mass far from the pivot balances a large mass close to it, which is the principle of moments and the basis of levers and mechanical advantage.
What iframe height should I use, especially on mobile?: The snippet ships with height="820", which is tall enough that the balance beam, the four sliders, the reset button and the readouts all fit without clipping even on a narrow phone where everything stacks into a single column. On a wider page the widget simply centres within its max-width of 560px. If you want it shorter you can lower the height, but 820 is the safe default across screen sizes.
Where can I embed it — WordPress, Wix, Squarespace, Notion?: Anywhere you can add HTML, because it is a standard iframe. In WordPress use a Custom HTML block; in Squarespace a Code/Embed block; in Wix an Embed HTML element; in Ghost an HTML card; in Notion paste the /embed/torque/ URL as an embed. On a plain HTML page or an intranet, paste the snippet straight into the markup.
Does the embedded simulator track visitors or set cookies?: No. Everything runs locally in the visitor’s browser — nothing is uploaded. The embed sets no tracking cookies and sends no analytics, so it is safe to place on a privacy-sensitive site, an intranet, or a page for students.