Which measurements are required to determine the density of an object?

• A. Temperature and pressure
• B. Surface area and mass
• C. Mass and volume
• D. Length and width

Answer: (C)

Verified step by step guidance

1. Understand that density is defined as the mass of an object divided by its volume. The formula for density is given by \(\text{Density} = \frac{\text{Mass}}{\text{Volume}}\).
2. Recognize that to calculate density, you need to know two key measurements: the mass of the object and the volume it occupies.
3. Mass is typically measured using a balance or scale and is expressed in units such as grams (g) or kilograms (kg).
4. Volume can be measured directly for regular-shaped objects using geometric formulas (e.g., length × width × height for a rectangular solid) or by displacement methods for irregular objects, and is expressed in units such as cubic centimeters (cm\(^3\)) or liters (L).
5. Note that temperature and pressure, surface area, length, and width alone are not sufficient to determine density because they do not provide both mass and volume together.