Radiation Safety Practice Exam

How does the density of depleted uranium compare to lead?

1. It is lighter than lead

2. It is similar to lead

3. It is significantly denser than lead

4. It is less dense than gold

The correct answer is: It is significantly denser than lead

Depleted uranium is significantly denser than lead. This property is crucial in various applications, particularly in military and radiation shielding contexts. The density of depleted uranium typically ranges around 18.5 grams per cubic centimeter, while the density of lead is about 11.3 grams per cubic centimeter. This higher density allows depleted uranium to be effective in applications such as armor-piercing ammunition and radiation shielding. The relative density of materials is important to understand their behavior in practical situations. Depleted uranium's high density contributes to its effectiveness in stopping radiation and penetrating armor, making it a material of choice in certain defense scenarios. Understanding the density of materials like depleted uranium compared to lead helps in assessing their suitability and effectiveness in specific uses, especially in radiation safety practices.