A thermostat set to 62°F turns on the furnace when a house cools below that temperature, and shuts the furnace off when a house warms above that temperature. This is an example of a simple ____.
A) positive feedback loop
B) negative feedback loop
C) system loop
D) tipping point
E) thermodynamic loop

Question

Quizplus · Accepted Answer

This is an example of a negative feedback loop because the furnace turns on to counteract the drop in temperature and turns off once the temperature has been raised to the set point.

A Thermostat Set to 62°F Turns on the Furnace When