Four rods of the same size but different materials (A, B, C, D) were used in an experiment. Thumbtacks were attached using wax. Which rod is the BEST conductor of heat?
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Worked Solution
Step 1: Better conductors transfer heat faster.
Step 2: Faster heat transfer melts the wax sooner.
Step 3: Rod A had the shortest time, so it is the best conductor.
Correct answer: Rod A (Thumbtack fell in 10s)
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