Question

A recipe for candy requires that the liquid ingredients be stirred constantly until the liquid reaches a temperature of 140°C. What type of spoon – wood or metal – will prevent burns to a person’s hand while stirring the hot liquid? Explain your choice.

Answer 1

Sample Response: A wooden spoon will prevent the person’s hand from burning because wood is an insulator. An insulator slows the transfer of thermal energy so that very little thermal energy from the hot liquid will transfer to the person’s hand. 

include:

-A wooden spoon will prevent the person’s hand from burning.

-Wood is an insulator.-An insulator slows the transfer of thermal energy.-The wooden spoon will transfer very little thermal energy to the person’s hand.

you're welcome lol

Answer 2

Answer:

WOOD

Explanation:

Here while stirring the ingredients we know that the temperature is much larger so the heat is transferred by the spoon towards the end of the spoon

This method of heat transfer is known as conduction mode of heat transfer

Here we know that heat is transferred from one end to other end by medium molecules of the metallic spoon

Now if the end of the spoon is made up of non conducting material then we will say that it is easier for the person to hold at high temperature

So the end must be made up of non conducting material

So the correct answer will be

WOOD