Ms 2v water. each cup contains the same amount of water.
copper bar
cup 1
(40°c)
cup 2
(20°c)
a. describe the direction of heat flow between the cups of water in the first few minutes of
the investigation.
b. identify the primary method of heat transfer (conduction, convection, radiation) between
the cups of water. describe how the transfer of heat occurred for the method you identified.
c. after 25 minutes, the water in both cups reaches thermal equilibrium. explain how the
student can determine that thermal equilibrium has been reached between the cups.
d. on the grid in your student answer booklet, copy the title, axes, and labels of graph,
draw two
one to represent the temperature of the water in cup 1
and the other to represent the temperature of the water in cup 2, over a 30-minute period.
assume no heat is lost to the surroundings.
traveled
c.
d. is the stu
calcu
a.
32
the diagram below shows three points on a roller coaster track. a car starts from rest at point x
and travels along the track. assume friction is negligible.
ocess of
occ

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