Is embedding the centripetal force 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 "Centripetal Force Simulator by LK Forge" credit line that comes with the embed code.

What can visitors do with the embedded simulator?

They can set the mass, the radius of the circle and the speed, and watch a mass swing around while the tool draws the velocity arrow (tangent) and the centripetal force arrow (toward the centre). A live panel shows the centripetal force F = mv²/r, the acceleration a = v²/r, the angular speed ω and the period T. They can also press Release to cut the string and watch the mass fly off along the tangent.

Does the embed teach the F = mv²/r relationship?

Yes. The force readout is computed directly from F = m·v²/r, so raising the speed shows the force growing with the square of v, and shrinking the radius shows it growing too. The tangential "Release" demo is the other teaching moment — it shows that removing the force lets the object continue in a straight line (Newton's first law), tangent to the circle, rather than flying radially outward.

What iframe height should I use, especially on mobile?

The snippet ships with height="880", which is tall enough that the circular-motion view, the three sliders, the buttons 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 880 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/centripetal-force/ 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 Centripetal Force Simulator to Your Website

LK Forge · 4 min read · Updated September 2026

You can add a full centripetal force 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 swing a mass in a circle and watch the inward force that keeps it there. This guide covers the fastest way to embed the Centripetal Force 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/centripetal-force/"
        width="100%" height="880" loading="lazy"
        style="border:0;max-width:560px"
        title="Centripetal Force Simulator by LK Forge"></iframe>
<p><a href="https://lkforge.com/tools/physics/centripetal-force/">Centripetal Force 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 mass already circling, so a visitor sees the motion immediately and can then take control:

Mass, radius, speed: three sliders that feed the force straight into F = mv²/r.
Force and velocity arrows: red points to the centre, blue points along the tangent — always at right angles.
Release the string: cut the force and watch the mass fly off along the tangent, not radially.
Live readouts: centripetal force, acceleration, angular speed and period.

Pick the right height

The snippet uses height="880", which fits the view, the sliders, the buttons 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/centripetal-force/ 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 circular motion, centripetal force or Newton's laws needs a mass students can actually swing.

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

Open the Centripetal Force Simulator

Frequently asked questions

Is embedding the centripetal force 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 "Centripetal Force Simulator by LK Forge" credit line that comes with the embed code.
What can visitors do with the embedded simulator?: They can set the mass, the radius of the circle and the speed, and watch a mass swing around while the tool draws the velocity arrow (tangent) and the centripetal force arrow (toward the centre). A live panel shows the centripetal force F = mv²/r, the acceleration a = v²/r, the angular speed ω and the period T. They can also press Release to cut the string and watch the mass fly off along the tangent.
Does the embed teach the F = mv²/r relationship?: Yes. The force readout is computed directly from F = m·v²/r, so raising the speed shows the force growing with the square of v, and shrinking the radius shows it growing too. The tangential "Release" demo is the other teaching moment — it shows that removing the force lets the object continue in a straight line (Newton's first law), tangent to the circle, rather than flying radially outward.
What iframe height should I use, especially on mobile?: The snippet ships with height="880", which is tall enough that the circular-motion view, the three sliders, the buttons 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 880 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/centripetal-force/ 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.