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Type: Multiple-Choice
Category: Magnetism and Electricity
Level: Grade 9
Score: 1
Author: SheilaH
Last Modified: 2 years ago

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Magnetism and Electricity Question

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Grade 9 Magnetism and Electricity

Telephones use electromagnets to change                                 .
  1. electric currents to light waves
  2. electric currents to sound waves
  3. magnetism to light waves
  4. magnetism to sound waves
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