Thermal Expansion Quiz - CBSE Class 11 Physics

Free practice quiz: Thermal Expansion (CBSE Class 11 Physics). 30 multiple-choice questions with answers and explanations. Play online, no sign-up needed.

Sample questions

1. What happens to the length of a metal rod when it is heated?

   1. It contracts
   2. It expands
   3. It remains the same
   4. It breaks
   Show answer

   Answer: B. It expands

2. Which formula is used to calculate the linear expansion of a material?

   1. ΔL = αL0ΔT
   2. ΔV = βV0ΔT
   3. Q = mcΔT
   4. F = ma
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   Answer: A. ΔL = αL0ΔT

3. In a solid, what is the main reason for thermal expansion?

   1. Vibration of atoms
   2. Movement of electrons
   3. Chemical reactions
   4. Gas laws
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   Answer: A. Vibration of atoms

4. Which law relates the change in length to the temperature change for solids?

   1. Ohm's Law
   2. Kirchhoff's Law
   3. Law of Thermal Expansion
   4. Stefan-Boltzmann Law
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   Answer: C. Law of Thermal Expansion

5. In which case would a substance undergo thermal expansion?

   1. Heating a solid
   2. Cooling a liquid
   3. Compressing a gas
   4. Freezing a solid
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   Answer: A. Heating a solid

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