14
practice testMultiple Choice

Practice Test

Question 14 • Physics in the Universe

Which device converts kinetic energy into electrical energy?

Answer
A
a step-down transformer
B
an electric generator
C
an electric motor
D
a step-up transformer

Explanation

An electric generator converts kinetic energy—the energy of motion—into electrical energy, typically by turning a coil or magnet so electromagnetic induction produces a current. A motor does the reverse, converting electrical energy into motion, while transformers change the voltage of electrical energy.

AI-written and checked against the verified answer.

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