Q:

What is the metric unit for density?

A:

Quick Answer

The metric unit for density is kilogram per meter cubed, and the smaller unit is grams per centimeter cubed. Density is defined as the ratio of mass per unit volume of a substance.

 Know More

Full Answer

Density shows how compact atoms, molecules and ions are in a substance. The density of solids is highest when liquids have lower densities. Gases have the lowest density, as the atoms and molecules in a gas are not tightly bound together.

Density of a substance depends on temperature and pressure. At lower temperatures, molecular and atomic motion slows down, causing them to become more compact. This causes substances to have higher densities at lower temperatures. The only anomaly is water, which has its highest density at 4 degrees Celsius. So the density of water in the solid state is actually lower than in the liquid state. This is why ice floats on water.

Learn more about Physics

Related Questions

  • Q:

    What is the density of plywood?

    A:

    The density of plywood is roughly 34.08 pounds per cubic foot. Because plywood is a flat material, it is generally measured in mass per area rather than mass per volume.

    Full Answer >
    Filed Under:
  • Q:

    What is the density of kerosene?

    A:

    The density of kerosene, in metric measurements, is 820.1 kilograms per cubic meter. In imperial measurements, this density is equivalent to 50.8 pounds per cubic foot.

    Full Answer >
    Filed Under:
  • Q:

    How do you calculate density?

    A:

    Density of any object is calculated by dividing the object's mass by its volume. Density is determined by the concentration of molecules in an object, so objects with a heavy mass in relation to a smaller volume have a higher density than objects with a lower concentration of molecules over a relatively large volume.

    Full Answer >
    Filed Under:
  • Q:

    Why is the density of a metal greater than the density of water?

    A:

    Metal density is higher than water density for two reasons: first, the atomic mass of most conventional metals is higher than the molecular mass of water. Second, metal atoms are held more closely together by metallic bonds than water, which is held together by hydrogen and covalent bonds.

    Full Answer >
    Filed Under:

Explore