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.

This CBSE Class 11 Physics practice quiz has 30 multiple-choice questions on Thermal Expansion. Try the 5 sample questions below (tap an option to check yourself), then play the full quiz 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
   Show answer

   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
   Show answer

   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
   Show answer

   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
   Show answer

   Answer: A. Heating a solid

More questions in this quiz

Answers and explanations are in the full quiz.

1. What is the term used to describe the increase in volume of a substance due to temperature rise?
2. If a solid expands when heated, what can be said about its density?
3. In a liquid, the volume expansion due to temperature change depends on which of the following?
4. An insulating material will have which of the following properties regarding thermal expansion?
5. What is the main reason for the expansion of gas when heated?
6. What happens to the volume of a gas when it is compressed at a constant temperature?
7. What is the coefficient of linear expansion?
8. Which of the following equations correctly describes linear thermal expansion?
9. What happens to the volume of a gas when its temperature is increased at constant pressure?
10. Which principle states that the volume of the same mass of gas at constant pressure is directly proportional to its temperature?
11. What is the effect of heating a fixed volume of gas on its pressure?
12. Which of the following factors does NOT affect the coefficient of thermal expansion of a material?
13. When a bridge expands in the summer due to heat, what is the practical feature that allows for this expansion?
14. What happens to the volume of a gas when it is heated at constant pressure?
15. When a solid rod is heated, what effect does it experience?
16. What is the coefficient of linear expansion for materials typically dependent on?
17. What is the primary cause of thermal expansion in solids?
18. What is the term for the expansion of liquid when heated?
19. In terms of thermal expansion, how do different materials compare?
20. What happens to the volume of a gas when its temperature increases at constant pressure?
21. When a liquid is heated, what happens to its density?
22. An experiment shows a liquid expands more than a solid at the same temperature change. This can be attributed to:
23. What is the main principle called that explains why metal rails are laid with gaps?
24. For which of the following should thermal expansions be calculated with the lowest precision?
25. A solid and a liquid are heated by the same amount. If the solid expands 1% in volume, what volume change would you expect from the liquid?

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