1. What is Density?

Density is a physical property of matter defined as mass per unit volume. It's a fundamental concept in physics and engineering that helps characterize materials and predict their behavior in different conditions.

2. How Does the Calculator Work?

The calculator uses the density equation:

Where:

• \( \rho \) — Density (kg/m³)
• \( m \) — Mass (kg)
• \( V \) — Volume (m³)

Explanation: The equation shows that density increases with greater mass or smaller volume, and decreases with smaller mass or greater volume.

3. Importance of Density Calculation

Details: Density calculations are essential for material identification, buoyancy predictions, quality control in manufacturing, and many scientific applications.

4. Using the Calculator

Tips: Enter mass in kilograms and volume in cubic meters. Both values must be positive numbers. The calculator will compute density in kg/m³.

5. Frequently Asked Questions (FAQ)

Q1: What are common density units?
A: While kg/m³ is standard in SI, g/cm³ is also common. 1 g/cm³ = 1000 kg/m³.

Q2: What's the density of water?
A: Pure water at 4°C has a density of 1000 kg/m³ (1 g/cm³).

Q3: How does temperature affect density?
A: Most substances expand when heated (lower density) and contract when cooled (higher density), with water being a notable exception between 0-4°C.

Q4: What is specific gravity?
A: Specific gravity is the ratio of a substance's density to the density of water at 4°C (unitless).

Q5: How is density used in real-world applications?
A: Applications include shipbuilding (buoyancy), material selection, quality control, geology (mineral identification), and more.