ACT Science Practice Question #1500 (Medium (29)) | Test Citadel
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ACT Science Difficulty: Medium (29)

Digital ACT Science Practice Question #1500

Test your problem-solving accuracy on this official-caliber item. Select an answer choice to check your reasoning instantly.

Identical 1.000-meter metal rods were heated from 20°C to 120°C (delta T = 100°C): - Invar: Elongation = 0.12 mm - Steel: Elongation = 1.20 mm - Copper: Elongation = 1.68 mm - Aluminum: Elongation = 2.31 mm Which metal has the largest coefficient of linear thermal expansion?
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Greatest elongation = highest coefficient = Aluminum.

Masterclass Solution & Distractor Trap Analysis

Aluminum elongated the most (2.31 mm) for the same temperature change, indicating the highest expansion coefficient....

Distractor Analysis: Trap choice eliminates careless test-takers who confuse roots with coordinates...

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