Margaret Kaminsky

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Recent Reviews by Margaret


Thu Jul 09, 2009 1:14 PM
3 devil in the details
On the whole, this object is informative and the animations are very helpful. But I did find one major and one minor error. In the summary,it states "Heat always transfers from the object with more thermal energy to the object with less thermal energy" Temperature should replace thermal energy both times in this statement. An iceberg has more thermal energy than a cup of hot cofee, but heat would transfer from the cup of coffee to the iceberg. Also in the evaluation questions in the feed back on the carpet vs. tile question, it states that tile feels colder because it has more points of contact with your feet, but I believe it is really that the tile is a better conductor than the carpet is.