Class 7 Science MCQs (Grade 7) From Textbook

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Class 7 Science MCQs – Practice Test for Exam Prep

Conductors and Insulators Multiple Choice Questions with Answers – PDF Download

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Conductors and Insulators MCQs PDF Download – Prep Test

MCQ: 1

In conductors, electrons can flow because their

  1. ions are free
  2. protons are free
  3. electrons are free
  4. negative ions are free
MCQ: 2

Poor conductor of electricity is

  1. silver
  2. aluminum
  3. water
  4. copper
MCQ: 3

Ions are charged particles. They are formed when an atom

  1. gains electrons
  2. loses electrons
  3. gains or loses electrons
  4. shares electrons
MCQ: 4

The materials that allow the electrons to flow through them is known as

  1. insulators
  2. conductors
  3. electrolytes
  4. bases
MCQ: 5

An example in which light emitting diodes are used, is

  1. calculator
  2. hard drive
  3. optical drive
  4. analog watch

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