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. The SI unit for density is kilograms per cubic meter (kg/m³).

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 is directly proportional to mass and inversely proportional to volume.

3. Importance of Density Calculation

Details: Density is crucial for identifying substances, determining buoyancy, and in various engineering applications. It's used in material science, fluid mechanics, and quality control processes.

4. Using the Calculator

Tips: Enter mass in kilograms and volume in cubic meters. Both values must be positive numbers. 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: How does temperature affect density?
A: For most substances, density decreases with increasing temperature due to thermal expansion.

Q3: What's the density of water?
A: Pure water at 4°C has a density of 1000 kg/m³ (1 g/cm³).

Q4: How is density used to identify substances?
A: Each pure substance has a characteristic density that can help identify it when combined with other tests.

Q5: What is relative density?
A: Relative density (specific gravity) is the ratio of a substance's density to that of a reference material (usually water for liquids and solids).