> For the complete documentation index, see [llms.txt](https://kb.heathen.group/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://kb.heathen.group/old-kb/toolkit-for-physics/physkit/sample-scenes/2-spherical-gravity.md).

# 2 Spherical Gravity

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## Introduction

![](/files/s9DKVejOjjV20Df4JJMG)

This scene demonstrates a more typical use of the [Force Effect framework](/old-kb/toolkit-for-physics/physkit/core-features/force-effect-framework.md); spherical gravity. You will find a sphere center of the screen with a number of objects placed around it. The sphere has a [Force Effect Field](/old-kb/toolkit-for-physics/physkit/components/force-effect-source/force-effect-field.md) configured to use the [Gravity Effect](/old-kb/toolkit-for-physics/physkit/objects/force-effect/gravity-effect.md). 

## What do I Learn?

1. What is a [Force Effect](/old-kb/toolkit-for-physics/physkit/api/force-effects.md)
2. What is a [Force Effect Source](/old-kb/toolkit-for-physics/physkit/components/force-effect-source.md)
3. What is a [Force Effect Reciever](/old-kb/toolkit-for-physics/physkit/components/force-effect-reciever.md) 
4. Use of the [Gravity Effect](/old-kb/toolkit-for-physics/physkit/objects/force-effect/gravity-effect.md)

## Objects

### Planet

The planet is a simple sphere mesh along with a [Force Effect Field](/old-kb/toolkit-for-physics/physkit/components/force-effect-source/force-effect-field.md) with the [Gravity Effect](/old-kb/toolkit-for-physics/physkit/objects/force-effect/gravity-effect.md) configured.

### Objects

This is a collection of spheres and cubes configured as [Force Effect Receivers](/old-kb/toolkit-for-physics/physkit/components/force-effect-reciever.md)