1. What is Density?

Density is a physical property of matter defined as mass per unit volume. It's an intensive property, meaning it doesn't depend on the amount of material.

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 the direct relationship between mass and density, and the inverse relationship between volume and density.

3. Importance of Density Calculation

Details: Density is crucial for identifying substances, calculating buoyancy, designing materials, and in many engineering applications. It helps determine purity and composition of materials.

4. Using the Calculator

Tips: Enter mass in kilograms and volume in cubic meters. All values must be valid (mass > 0, volume > 0). The calculator will compute the density in kg/m³.

5. Frequently Asked Questions (FAQ)

Q1: What are common density units?
A: While kg/m³ is the SI unit, g/cm³ is also commonly used (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 or 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 relative density?
A: Relative density (specific gravity) is the ratio of a substance's density to that of water at 4°C.

Q5: Why do some objects float?
A: Objects float if their average density is less than the fluid they're in (Archimedes' principle).