Physical Properties Review

Front

What is density and how does it relate to whether an object will float or sink in water?

Back

Density is defined as mass per unit volume. An object will float in water if its density is less than that of water (1 g/cm³) and will sink if its density is greater.

Front

What is the definition of magnetism?

Back

Magnetism is a property of materials that describes their ability to be attracted to a magnet or to attract other magnetic materials.

Front

What are some common materials that do not dissolve in water?

Back

Common materials that do not dissolve in water include sand, oil, and certain types of plastics.

Front

What is an insulator? Provide an example.

Back

An insulator is a material that does not conduct electricity well. An example of an insulator is rubber.

Front

What does it mean if an object is more dense than water?

Back

If an object is more dense than water, it means that it has a greater mass per unit volume than water, causing it to sink.

Front

What is the principle of buoyancy?

Back

The principle of buoyancy states that an object submerged in a fluid experiences an upward force equal to the weight of the fluid displaced by the object.

Front

How does temperature affect the density of liquids?

Back

Generally, as temperature increases, the density of liquids decreases because the liquid expands and occupies a larger volume.

Front

What is the difference between a conductor and an insulator?

Back

A conductor is a material that allows electricity to flow through it easily, while an insulator resists the flow of electricity.

Front

What is the significance of the water's density in relation to floating objects?

Back

The density of water (1 g/cm³) is significant because it determines whether objects will float or sink based on their own density.

Front

What is the role of surface tension in the behavior of liquids?

Back

Surface tension is the cohesive force at the surface of a liquid that allows it to resist external force, enabling small objects to float on its surface.