8.10A Convection

Front

What is convection?

Back

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

Front

What causes a sea breeze?

Back

A sea breeze is caused by the Sun heating the land faster than the water, leading to warmer air over the land that rises and creates a convection current.

Front

What is the primary source of energy that generates wind?

Back

The primary source of energy that generates wind is solar radiation.

Front

Why do currents exist in the ocean and air?

Back

Currents exist because the Sun heats air and water unevenly, particularly at the equator where it receives more direct sunlight.

Front

What happens to hot water in a beaker when heated?

Back

Hot water becomes less dense than cool water, causing it to rise while the cooler, denser water sinks.

Front

What is the role of density in convection?

Back

Density differences in fluids cause warmer, less dense fluid to rise and cooler, denser fluid to sink, creating convection currents.

Front

What is an example of convection in everyday life?

Back

An example of convection is a lava lamp, where the warm wax rises and the cooler wax sinks.

Front

How does the Sun affect wind patterns?

Back

The Sun heats different areas of the Earth unevenly, causing variations in air pressure that result in wind patterns.

Front

What is the Coriolis effect?

Back

The Coriolis effect is the deflection of moving objects, such as air currents, caused by the rotation of the Earth.

Front

What is conduction?

Back

Conduction is the transfer of heat through direct contact between materials, without the movement of the materials themselves.