SAT Subject Physics Practice Question 440: Answer and Explanation

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Question: 440

1. Electrical energy is converted into mechanical energy by which of the following?

A. Magnet
B. Transformer
C. Motor
D. Generator
E. Battery

Correct Answer: C


The correct answer is (C). Motors are used in a variety of mechanical devices such as saws, sanders, drills, and pumps. The electric energy is converted to mechanical energy by the rotation of a loop of wire in a magnetic field.

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