Question

Clothing acts as insulation to keep body heat in. Bryan wants to know whether a wool sock or a cotton sock will be better at keeping heat in. He puts the wool sock around cup 1 and the cotton sock around cup 2 and then fills both cups with hot water.

How can he tell which sock is a better insulator?

A. Measure the temperature of the air.
B. Measure how long it takes to drink the water.
C. Measure which cup of water stays hot the longest.
D. Measure the temperature of each sock by itself.

Please choose the correct option that explains how Bryan can determine which sock is a better insulator.

Answer 1

Bryan can determine which sock is a better insulator by measuring which cup of water stays hot the longest.

Step-by-step explanation:

In order to determine which sock is a better insulator, Bryan can measure which cup of water stays hot the longest.

This is because the purpose of insulation is to minimize heat transfer between the object and its surroundings. The sock that keeps the cup of water hotter for a longer period of time indicates better insulation, as it is preventing the heat from escaping.

Therefore, option C. Measure which cup of water stays hot the longest is the correct option for Bryan to determine which sock is a better insulator.