Lesson 6: Explaining the Effect of Different Lid Designs V1

Last updated 3 months ago
3 questions
Note from the author:
A beverage company wants to stop using plastic straws, so the company designs a new lid. The new lid has a much bigger hole than the old lid.
Alex, a scientist at the company, is wondering how this might affect what happens with the liquid inside the cup.




A beverage company wants to stop using plastic straws, so the company designs a new lid. The new lid has a much bigger hole than the old lid.
Alex, a scientist at the company, is wondering how this might affect what happens with the liquid inside the cup.




Required
2

1) First, Alex does an experiment in which she fills 2 cups with cold liquid at the same temperature:
  • 1 cup with the old lid and
  • 1 cup with the new lid.

She finds that the liquid in one cup warmed up more than the liquid in the other cup after 10 minutes.

Which cup do you think warmed up more? Explain why.

Required
1

At the end of 30 days Alex finds that one cup lost more liquid than the other. Add particle diagrams for the zoomed-in views at lid locations A and B to help explain how that could happen.

Required
1

Alex repeats the Question 1 experiment 4 times. Each time, she records how much the liquid in the cup that warmed up the most changed temperature after 10 minutes. Here are her results:
Based on these data, what is the average temperature change for the liquid in the cup? ________℃

SHOW YOUR WORK