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 formula:

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 calculations are essential for material identification, buoyancy determinations, 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. 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 standard, g/cm³ is also common. 1000 kg/m³ = 1 g/cm³.

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), except water between 0-4°C.

Q4: What is relative density?
A: It's the ratio of a substance's density to that of water (unitless).

Q5: How is density used in material identification?
A: Each material has a characteristic density range, helping identify unknown substances.