Washington Esthetician State Board Practice Exam

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Prepare for the Washington Esthetician State Board exam. Study with flashcards and multiple-choice questions, each with hints and explanations. Get ready to become a licensed esthetician!

Each practice test/flash card set has 50 randomly selected questions from a bank of over 500. You'll get a new set of questions each time!

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What substance would be classified as a poor conductor of electricity?

Copper
Gold
Wood
Aluminum

The correct answer is: Wood

Wood is classified as a poor conductor of electricity because it is an insulator rather than a conductor. Insulators are materials that do not allow electricity to flow through them easily due to their molecular structure, which hinders the movement of electrical charges. Wood, being organic and having a high resistance to electrical flow, does not conduct electricity effectively, making it suitable for various applications where electrical conduction must be avoided. In contrast, metals like copper, gold, and aluminum are excellent conductors of electricity due to their free-moving electrons, which facilitate the flow of electrical current. These metals are commonly used in electrical wiring and components, demonstrating the fundamental differences in conductivity between these materials and wood.