Lesson: Calculating Density Physics • 9th Grade
In this lesson, we will learn how to use the formula ρ = M/V to calculate the densities of different materials and objects.
Two spheres have the same mass, but the second sphere has a volume half as big as the first. How much greater is the density of the second sphere than that of the first sphere?
A scientist has three cubes of different materials. Each cube has a volume of 125 cm3. She weighs each cube to find its mass, and her results are recorded in the table shown. Which material has the highest density?
|Material||Volume (cm3)||Mass (kg)|
A small cube of iron has sides with length 0.15 m. If the mass of the cube is 26.6 kg, what is its density? Give your answer to the nearest kilogram per cubic meter.