### Introduction

Charge, like mass, is a fundamental property of matter. However, unlike mass, which seems to be more or less unchanging, the effects of charge are not always apparent. In fact, we use terms like “charged” or “uncharged” to describe objects when we would not think of using parallel descriptors for mass. In this experiment, you will observe charge separation and transfer and learn how to measure the electric charge of objects.

### Objectives

In this experiment, you will

• Use a Charge Sensor and Faraday Pail to measure electric charge.
• Observe and quantify the separation of electrical charge by friction.
• Observe and quantify charging by contact.
• Observe and quantify charging by induction.