Question

Which would be best categorized as heat transfer by convection? Noodles rising and falling in a pot of boiling water Touching a metal spoon that is sitting in a pot of boiling water Using a heating blanket to get warm Wearing a white shirt to stay cool on a summer day.

Answer 1

Answer: Option (A) is the correct answer.

Explanation:

When a substance is heated then less dense (hotter) material rises and more denser (colder) material sink due to the influence of gravity. As a result, heat transfer form hotter to colder substance and this process is known as convection.

For example, noodles in a hot water. Noddles being more denser (colder) will sink at the bottom and water being less dense will rise.

Thus, we can conclude that out of the given options, noodles rising and falling in a pot of boiling water is best categorized as heat transfer by convection.

Answer 2

I would say that the best answer would he noodles rising and falling in a pot of boiling water. The definition of convection is movement caused by fluids 'boiling water' and dense material 'noodles' rise when and sink due to gravity which results in a heat transfer. I hoped this helped.