Question

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

Answer 1

It is D because heat is tranferred to your body through the air 

Answer 2

Answer: Option (B) is the correct answer.

Explanation:

When a substance or fluid is heated then due to the heat less dense material rises whereas more denser (cooler) substance sink at the bottom under the influence of gravity.

As a result, heat transfers from hotter to colder substance.

For example, noodles rising and falling in a pot of boiling water represent convection process.

Thus, we can conclude that noodles rising and falling in a pot of boiling water would be best categorized as heat transfer by convection.