Go through the following passage and answer the following questions:
A family lives in a mountain village where winter temperatures are very low. Their house has walls made of two wooden layers, with mud placed between the layers. The family notices that the rooms remain warmer for a longer time when the heating source is removed.
A neighbour suggests replacing the wooden layers with metal sheets because metals are commonly used for many household objects. The family decides to compare the two designs and understand how the materials used in the walls affect heat transfer.
1. Why is mud placed between the two wooden layers? -
2. The neighbour suggests using a metal sheet instead of wood. Why may this not be the better choice when the aim is to reduce heat loss? -
3. Suppose the family removes the mud from between the wooden layers but keeps both wooden layers. What change would most likely occur? -
4. The family wants to build another house using the same principle. Which design would be the most appropriate? -