Density and Viscosity

Front

What is density?

Back

Density is the mass of a substance divided by its volume, often expressed in grams per cubic centimeter (g/cm³).

Front

How does temperature affect the viscosity of a liquid?

Back

As temperature increases, the viscosity of a liquid decreases, making it flow more easily.

Front

What is viscosity?

Back

Viscosity is a measure of a fluid's resistance to flow. High viscosity means a fluid flows slowly, while low viscosity means it flows easily.

Front

What happens to the density of most substances as temperature increases?

Back

Most substances become less dense as temperature increases because they expand.

Front

What is the relationship between density and buoyancy?

Back

An object will float in a fluid if it is less dense than the fluid.

Front

What is a graduated cylinder used for?

Back

A graduated cylinder is used to measure the volume of liquids accurately.

Front

What is the formula for calculating density?

Back

Density = Mass / Volume.

Front

Why do some objects sink in water?

Back

Objects sink in water if they are more dense than water.

Front

What is the effect of adding salt to water on its density?

Back

Adding salt increases the density of water, allowing objects that would normally sink to float.

Front

What is an example of a high viscosity liquid?

Back

Honey is an example of a high viscosity liquid; it flows slowly.