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B) The Results of the Investigation Are Shown Below. Multirow(2)(*){ Time (minutes) Cline ( 2 - 5 ) & Material A & Material B &

Question

b) The results of the investigation are shown below. multirow(2)(*){ time (minutes) cline ( 2 - 5 ) & material A & material B & material C & material D 0 & 60 & 60 & 60 & 60 20 & 34 & 40 & 38 & 36 (i) The scientist said that the 'Wellwarm' material is the best insulator. Which material was 'Wellwarm'? Use the results to help you. Tick the correct box. A B C D 1 mark

Answer

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Eli Veteran · Tutor for 9 years

Answer

B

Explanation

This question is about thermal insulation. The best insulator is the material that keeps the water warm for the longest time. Looking at the table, we can see that after 20 minutes, the water wrapped in material B is the warmest, with a temperature of 40 degrees Celsius. Therefore, material B is the best insulator.