---
title: nodeA
framework: scenekit
role: symbol
role_heading: Instance Property
path: scenekit/scnphysicscontact/nodea
---

# nodeA

The node containing the first body in the contact.

## Declaration

```swift
var nodeA: SCNNode { get }
```

## Discussion

Discussion Use the node’s physicsBody property to examine physics characteristics of the node.

## See Also

### Inspecting the Contact Properties

- [nodeB](scenekit/scnphysicscontact/nodeb.md)
- [contactPoint](scenekit/scnphysicscontact/contactpoint.md)
- [contactNormal](scenekit/scnphysicscontact/contactnormal.md)
- [collisionImpulse](scenekit/scnphysicscontact/collisionimpulse.md)
- [penetrationDistance](scenekit/scnphysicscontact/penetrationdistance.md)