What is density?

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Multiple Choice

What is density?

Explanation:
Density is how much mass is packed into a given volume. It’s calculated as density = mass ÷ volume, so it tells you how heavy something is for its size. If two objects share the same volume, the one with more mass is denser; if you keep the mass but increase the volume, the density goes down. Common units are grams per cubic centimeter for solids and kilograms per cubic meter for most liquids and gases. A familiar example is water, which has a density of about 1 g/cm^3 at room temperature, helping explain why ice floats in water. The space an object occupies is its volume, not density; the speed of particles describes velocity, not density; and temperature measures thermal energy, not density.

Density is how much mass is packed into a given volume. It’s calculated as density = mass ÷ volume, so it tells you how heavy something is for its size. If two objects share the same volume, the one with more mass is denser; if you keep the mass but increase the volume, the density goes down. Common units are grams per cubic centimeter for solids and kilograms per cubic meter for most liquids and gases. A familiar example is water, which has a density of about 1 g/cm^3 at room temperature, helping explain why ice floats in water. The space an object occupies is its volume, not density; the speed of particles describes velocity, not density; and temperature measures thermal energy, not density.

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