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Average density is a measure of how much mass is contained in a given volume. To find the average density of an object or substance, you can follow these steps: **Step 1: Determine the Mass of the Object** First, you need to measure the mass of the object or substance for which you want to find the average density. This is typically done using a balance or scale. The mass should be recorded in kilograms (kg) or grams (g), depending on the size of the object. **Step 2: Determine the Volume of the Object** Next, you need to measure the volume of the object. The method for determining volume depends on the shape and state of the object: - For regular-shaped objects (like cubes or spheres), you can use mathematical formulas to calculate volume. For example, the volume of a cube is found by cubing the length of one of its sides (V = side^3). - For irregularly shaped objects, you can use the water displacement method. Submerge the object in a graduated cylinder filled with water and measure the change in water level, which corresponds to the volume of the object. - For fluids, you can simply measure the volume of the liquid in a container with known volume measurements. The volume should be recorded in cubic meters (m^3) or cubic centimeters (cm^3), also known as milliliters (mL). **Step 3: Calculate the Average Density** Once you have both the mass and the volume, you can calculate the average density using the formula: Density (ρ) = Mass (m) / Volume (V) Insert the mass and volume into the formula and perform the division. Ensure that the units for mass and volume are compatible when performing the calculation (e.g., grams and cubic centimeters, or kilograms and cubic meters). **Step 4: Record the Density in Appropriate Units** The result will give you the average density of the object or substance. The units for density are typically kilograms per cubic meter (kg/m^3) or grams per cubic centimeter (g/cm^3). Make sure to record the density with the correct units. **Example Calculation:** Suppose you have a solid cube of metal with a mass of 200 grams and each side of the cube measures 5 centimeters. To find the average density: 1. Calculate the volume of the cube: V = side^3 = 5 cm * 5 cm * 5 cm = 125 cm^3. 2. Use the density formula: Density (ρ) = Mass (m) / Volume (V) = 200 g / 125 cm^3. 3. Perform the division: ρ = 1.6 g/cm^3. So, the average density of the metal cube is 1.6 grams per cubic centimeter. Remember, the average density is a characteristic property of a material and can be used to identify substances or to calculate other properties, such as buoyancy or material strength.

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How to find average density?

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