The Coefficient of Linear Expansion of Copper Is 17 ×

question 125

Multiple Choice

The coefficient of linear expansion of copper is 17 × 10^-6 K^-1 and that of steel is 12 × 10^-6 K^-1. At 12°C a steel rod has a diameter of 2.540 cm and a copper pipe has a diameter of 2.536 cm. Which one of the following quantities is closest to the temperature to which the copper pipe must be heated in order for the unheated steel rod to fit snugly in the copper pipe?

• A) 53°C
• B) 81°C
• C) 93°C
• D) 105°C
• E) 143°C

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Definitions:

Alternative Explanations

Different theories or reasons that may explain observations or facts, aside from the primary hypothesis.

Reversal Design

An experimental design that involves repeatedly applying and removing a treatment to observe if doing so results in corresponding changes in the dependent variable.

Designated Drivers

Individuals chosen to abstain from alcohol in order to drive others safely to their destinations.

Across Situations Design

An experimental approach to study how consistent behaviors or responses are across different situations or contexts.