everyday science MCQ #356

If a bimetallic strip is heated, it will:

everyday science MCQ #356

  1. Question 1

    Q1. If a bimetallic strip is heated, it will:

    • A) Twist itself into a helix
    • B) Not bend at all
    • C) Bend towards the metal with the higher thermal coefficient of expansion
    • D) Bend towards the metal with the lower thermal expansion coefficient

    Answer: Bend towards the metal with the lower thermal expansion coefficient

    Explanation: In a bimetallic strip, the metal with the lower thermal expansion coefficient expands less, so the strip bends toward that side (the less-expanding metal) when heated.