A Rod Has a Length 2

question 54

Multiple Choice

A rod has a length 2.00000 m at 10.0°C. The length of the rod increases to 2.00060 m when the temperature increases to 30.0°C. What is the coefficient of linear expansion of the material from which the rod is made?

• A) 2.0 × 10^-5/K
• B) 2.5 × 10^-5/K
• C) 1.5 × 10^-5/K
• D) 1.0 × 10^-3/K
• E) 1.0 × 10^-5/K

---

Definitions:

Cross-Sectional Study

A type of observational research that analyzes data from a population, or a representative subset, at a specific point in time.

Longitudinal Study

A research design that involves repeated observations of the same variables over a period of time, often used to observe developments or changes.

Evolutionary Perspective

An approach in psychology that emphasizes the inherited, adaptive value of behavior and mental activity throughout the history of a species.

Vygotsky

A Russian psychologist known for his work on cognitive development, particularly the concept of the Zone of Proximal Development.