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Did you complete the reading assignment? (Typically this means at least 20-30
minutes looking over the assigned sections of the book.)
☐ yes
☐ no
An ideal gas has a mixture of heavy and light molecules at the same
temperature. The molecules with the most KE are:
☐ heavy
☐ light
☐ same
The fact that desert sand is very hot in the day and very cold at night
is evidence that sand has a:
☐ low specific heat
☐ high specific heat
Thermal energy that is used to melt or freeze something is called:
☐ latent heat
☐ specific heat
☐ thermal mass
Ralph's professor stated "If you add an ice cube to a glass of water, the
temperature of the water does not necessarily decrease." That seems bizarre to
him, because ice is obviously used to cool down water! Can you help him
understand what his professor may have been talking about?
The comments in the next next two boxes go into a big, mostly anonymous text file that I skim through before the morning lecture, using the comments to help me plan class discussion. ("Mostly anonymous", because I can track down who made what comment, but it takes some effort on my part to do so.) Therefore, if you really want to make sure I see your question/comment and answer it individually, you should send it to me via email and not through this form.
Which part of today's assignment was particularly hard or confusing? What
would you like to spend extra time on in class?
Any other comments:
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