SCI 110 Week 3 Discussion

SCI 110 Week 3 Discussion | Assignment Help | Strayer University 

Week 3 | Discussion

"Chapters 6 and 7"

Discussion Option 1:

 Question 1

·        Watch the video on Heat and Temperature under Instructor Insights. Discuss which has more Thermal Energy, the oven at 350F or the water boiling at 212F. Which one is more dangerous and why?

• When you swab rubbing alcohol on your skin it feels cold for a few minutes- even though the alcohol has been sitting at room temperature. Explain the process that cools your skin in this case.

Question 2

• You are cooking soup on the stove with a metal spoon. You leave the spoon in the soup for a moment and when you try to pick it up, it is too hot to touch. Explain the process that made this happen. Come up with a solution that will allow you to stir your soup and explain it in terms of heat transfer and heat insulation as appropriate.
• You place a pot of water on the stove and bring it to a boil, the water begins to churn faster as the pot gets hotter. What kinds of heat transfer are taking place here? Describe all heat transfer methods that apply. Take into account the burner, the pot, and the water.

1.      Reply to at least two fellow students with a follow-up question, comment, or a different perspective on their discussion questions.

Discussion Option 2:

Refer to the section marked “Discussion Questions (Evaluation)” at the back of each of the assigned chapters (Chapters 6 & 7):

1.      For each chapter, pick one of the discussion questions to address. Copy the question into the forum, along with your answer (see example, below). We are looking for a post for each chapter.

2.      Reply to at least two fellow students with a follow-up question, comment, or a different perspective on their discussion questions.

Example Initial Post:

Chapter 7, #112. Wrap part of a fur coat around a thermometer. Discuss whether or not the temperature rises.

Answer: The reason a fur coat feels warm to a human is because the coat diminishes the amount of heat that is lost from your warm body to the (cooler) environment. That's mainly because it reduces heat transfer via convection, per section 7.2 of the text. Thus, the fur coat is not a source of heat, but simply a thermal insulator to limit heat transfer.