Density + Convection

Front

What is convection?

Back

Convection is the transfer of heat through the movement of fluids (liquids and gases) caused by differences in temperature and density.

Tags

NGSS.MS-ESS2-6

Front

In which states of matter does convection occur?

Back

Convection occurs in liquids and gases.

Front

What is the primary driving force behind convection currents?

Back

The primary driving force behind convection currents is the difference in temperature, which causes differences in density.

Tags

NGSS.MS-ESS2-6

NGSS.MS-PS1-4

Front

What conditions are necessary to create a convection current?

Back

A mass of cold air near a mass of warm air is necessary to create a convection current.

Tags

NGSS.MS-ESS2-5

NGSS.MS-ESS2-6

Front

What is the formula for calculating density?

Back

The formula for density is density = mass / volume.

Front

If an object has a mass of 10g and a volume of 5cm³, what is its density?

Back

The density is 2 g/cm³.

Front

What happens to cool air in a convection process?

Back

Cool air sinks in a convection process.

Front

What happens to warm air in a convection process?

Back

Warm air rises in a convection process.

Tags

NGSS.MS-ESS2-6

Front

How does density affect the movement of fluids in convection?

Back

Fluids with lower density rise, while fluids with higher density sink, creating convection currents.

Front

What is the relationship between temperature and density in fluids?

Back

In general, as temperature increases, density decreases, and as temperature decreases, density increases.