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.

2. How Does the Calculator Work?

The calculator uses the density formula:

Where:

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

Explanation: The formula shows the direct relationship between mass and density, and the inverse relationship between volume and density.

3. Importance of Density Calculation

Details: Density calculations are essential in material science, buoyancy calculations, fluid mechanics, and quality control of products. It helps identify substances and predict whether objects will float or sink.

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 units for density?
A: The SI unit is kg/m³, but 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 is 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, density is a characteristic property that can help identify pure substances.

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).