Lab: Thermal Energy Transfer

Question 4 • FL-2003310-Physical Science CR

How do furnace heating systems typically work?

Answer

Ignition of fuel creates a pressure change inside the furnace, causing a piston to exhaust hot air into the building.

A bimetallic strip absorbs thermal energy from the air outside of the building, causing the transfer of thermal energy from fuel to the air inside the building.

Energy in the fuel’s chemical bonds is converted to thermal energy, which is then transferred to the air inside the building.

Thermal energy from outside of the building is transferred to the inside of the building using a liquid.

Explanation

A furnace burns fuel, converting the chemical energy stored in the fuel into thermal energy. The furnace then transfers that heat to air, which is circulated through the building. A bimetallic strip may help control a heating system, but it does not transfer heat from outdoors as described in choice B.

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Lab: Thermal Energy Transfer