A company of building contractors hired a set of researchers to determine which materials would best serve as insulators in a new housing development. To determine the factors affecting insulation quality, the researchers placed samples of various materials between two heated plates, P1 and P2, both held at constant temperature. Heat was transferred from the hotter plate, through the sample, to the cooler plate. This heat flow was measured (J/sec ) and recorded in Table 1.

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Question 1 of 5
1. Question
Question 1:
According to Table 1, doubling the temperature of P1 while keeping all other variables the same had which effect, if any, on the measured heat flow?
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Question 2 of 5
2. Question
Question 2:
Based on Trials 1 and 2, heat flow is dependent upon which of the following factors?
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Question 3 of 5
3. Question
Question 3:
The researchers explained that materials with higher heat flows were considered to be thermal conductors. Based on this and the information presented, which of the following materials should building contractors choose to use in their new housing development?
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Question 4 of 5
4. Question
Question 4:
According to the passage, heat flowed from P2 to P1 in which of the trials?
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Question 5 of 5
5. Question
Question 5:
Suppose the researchers had tested a third sample of fiberglass between two heated plates in the same manner as Trials 1 through 12. If the temperature of P1 had been 45 C and the temperature of P2 had been 20 C, what would be the expected heat flow?
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