Heat Transfer

Front

What is heat transfer?

Back

The movement of energy from a warmer object to a cooler object.

Front

What are the three main factors that set convection currents in motion?

Back

Gravity (friction), differences in density, and temperature.

Front

How does temperature change in the mantle as you get closer to the Earth's core?

Back

The temperature increases.

Front

What are the two types of heat transfer that occur in the Earth?

Back

Convection and conduction.

Front

What happens to the density of mantle material when it decreases in temperature?

Back

It becomes more dense.

Front

Define conduction in the context of heat transfer.

Back

The transfer of heat through direct contact between materials.

Front

Define convection in the context of heat transfer.

Back

The transfer of heat through the movement of fluids (liquids or gases).

Front

What role does density play in convection currents?

Back

Differences in density cause fluids to rise and sink, creating convection currents.

Front

What is the relationship between temperature and density in fluids?

Back

As temperature decreases, density increases.

Front

What is an example of conduction?

Back

A metal spoon getting hot when placed in a pot of boiling water.