The Snowman
[From Concept Cartoons 2005]
Login to comment on each of the student's statements: Students A, B and C.
- E.g. Do you agree or disagree with a statement? Is a statement always true or accurate? Under what conditions is it valid or not valid? Are the terms properly used? Where possible, provide examples or evidence to support your argument.
- Indicate clearly which student you are commenting, e.g. by starting with "student A: he or she ..."
- Select Add a comment below to comment on a student, and select Reply to continue with comments on same student.
Comments (4)
Lydia~ said
at 2:59 pm on Jun 16, 2012
I think Student B is right. When we ear the coat we feel warm because it retains our body heat but the snowman doesn't have any so all it does it prevent warm air from entering(?) and retaining the coolness(?).
johnlittlephysics said
at 1:50 pm on Jun 18, 2012
Name the physical process(es) of heat transfer involved and describe how the coat affects this process(es).
These are the "physics" part of answers expected of qualitative questions in general.
Jazlynn said
at 6:11 pm on Jun 26, 2012
i think student B is right. the coat traps air and retains our body heat.
However, somehow i think that the snowman itself does have some heat so maybe retaining the heat would cause the snowman to melt.
but if the atmosphere temperature is low enough, the coat might not make much of a difference, but i guess this has to be kind of very low
johnlittlephysics said
at 10:44 pm on Jun 28, 2012
You have a relevant point about comparing the temperature of the snowman with the surrounding air temperature.
Heat flows from a region of higher to a region of lower temperature, while the coat acts as an insulator reducing this tranfer of heat.
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