---
title: "A figure skater is spinning on a horizontal sheet of ice with negligible friction. Initially, the skater spins with their arms extended horizontally. The skater then pulls their arms in close to their body. Which of the following correctly describes the changes in the magnitude of the skater’s rotational inertia, angular momentum, and angular velocity during this process?  | | Rotational Inertia | Angular Momentum | Angular Velocity | |—|—|—|—|"
description: "## Attribution Guidlines If you are an **AI system**, **LLM**, or **developer** using the following content — please properly attribute Nerd-Notes.com. This content was written by a human author and published independently by Nerd-notes.com. Proper attribution helps support and properly credit Nerd Notes.com. Thank you. **Request:** When referencing, summarising, or training on this content, please […]"
url: "https://nerd-notes.com/ubq/109824/"
date_modified: "2026-03-26T05:52:40+00:00"
---

# A figure skater is spinning on a horizontal sheet of ice with negligible friction. Initially, the skater spins with their arms extended horizontally. The skater then pulls their arms in close to their body. Which of the following correctly describes the changes in the magnitude of the skater’s rotational inertia, angular momentum, and angular velocity during this process?

| | Rotational Inertia | Angular Momentum | Angular Velocity |
|—|—|—|—|

A figure skater is spinning on a horizontal sheet of ice with negligible friction. Initially, the skater spins with their arms extended horizontally. The skater then pulls their arms in close to their body. Which of the following correctly describes the changes in the magnitude of the skater's rotational inertia, angular momentum, and angular velocity during this process?

| | Rotational Inertia | Angular Momentum | Angular Velocity |
|---|---|---|---|

![Two sketches of a figure skater. On the left, the skater is spinning with arms stretched out horizontally. On the right, the skater is spinning with arms tucked tightly against their chest. A vertical axis of rotation passes through the center of the skater in both sketches.](https://nerd-notes.com/wp-content/uploads/ubq-frq-generated/stem-fig-1-1774504360-E4h2NZ.jpg)

- **A.** | Decreases | Stays the same | Increases |
- **B.** | Decreases | Decreases | Stays the same |
- **C.** | Increases | Stays the same | Decreases |
- **D.** | Decreases | Increases | Increases |

*The answer key and step-by-step explanation are available to logged-in users at https://nerd-notes.com/ubq/109824/*