# Rotational Motion Kit

Product Code: ME-1260

## Description

This set of rotational motion experiments can be performed with the equipment included in the Rotational Motion Kit (ME-1260).

Grade Level: College • High School

Subject: Physics

### 01) Rotational Inertia

The purpose of this experiment is to find the rotational inertia of a ring and a disk experimentally and to verify that these values correspond to the calculated theoretical values.

### 02) Rotational Inertia of a Point Mass

The purpose of this experiment is to find the rotational inertia of a point mass experimentally and to verify that this value corresponds to the calculated theoretical value.

### 03) Newton’s Second Law for Rotation

Newton’s Second Law for rotation: The resulting angular acceleration (α) of an object is directly proportional to the net torque (τ) on that object. The hanging mass applies a torque to the shaft of the Rotary Motion Sensor and the resulting angular acceleration of the rod and brass masses is investigated.

### 04) Rotational Kinetic Energy

This lab investigates the potential energies for a modified Atwood’s Machine, where a disk has been added to the Rotary Motion Sensor pulley.

### 05) Conservation of Angular Momentum

A non-rotating ring is dropped onto a rotating disk. The angular speed is measured immediately before the drop and after the ring stops sliding on the disk. The measurements are repeated with a non-rotating disk being dropped onto a rotating disk. For each situation, the initial angular momentum is compared to the final angular momentum. Initial and final kinetic energy are also calculated and compared.

### 06) Conservation of Energy of a Simple Pendulum

The purpose of this experiment is to use measurements of the motion of a simple pendulum to calculate and compare the different types of energy present in the system.

### 07) Physical Pendulum

A rod oscillates as a physical pendulum. The period is measured directly by the Rotary Motion Sensor, and the value is compared to the theoretical period calculated from the dimensions of the pendulum.

### 08) Large Amplitude Pendulum

This experiment explores the oscillatory motion of a physical pendulum for both small and large amplitudes. Waveforms are examined for angular displacement, velocity and acceleration, and the dependence of the period of a pendulum on the amplitude of oscillation is investigated.