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 describes how much matter is packed into a given space.

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 is crucial for material identification, buoyancy calculations, fluid mechanics, and many engineering applications. It helps determine if objects will float or sink in fluids.

4. Using the Calculator

Tips: Enter mass in kilograms and volume in cubic meters. Both values must be positive numbers. For accurate results, use precise measurements.

5. Frequently Asked Questions (FAQ)

Q1: What are common units for density?
A: While kg/m³ is standard, g/cm³ is also widely used (1 g/cm³ = 1000 kg/m³).

Q2: How does temperature affect density?
A: Most materials expand when heated (increasing volume), thus decreasing density.

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

Q4: Can density be used to identify materials?
A: Yes, each pure substance has a characteristic density at given conditions.

Q5: What is relative density?
A: It's the ratio of a substance's density to that of a reference material (usually water).