Lesson eLearning

Which of the following materials conducts heat most efficiently: a) iron, b) rubber, c) glass, d) wood?

easy MCQ 1 mark Class 7 · Science · Heat
  1. a) iron
  2. b) rubber
  3. c) glass
  4. d) wood
Answer
a) iron

The correct answer is a) iron — Select iron as the correct answer.

Step-by-step solution

  1. Identify that the question asks for the best heat conductor.
  2. Recall that metals like iron have high thermal conductivity.
  3. Compare the materials: iron > glass > wood > rubber.
  4. Select iron as the correct answer.
Common mistake: Confusing thermal conductivity with electrical conductivity

Concept tested: Heat conduction in materials

Published · How this solution was prepared and checked

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