Thermal Properties of Matter MCQs
Thermal Properties of Matter MCQs
Class: CBSE Class 11
Subject: Physics
Section: Properties of Bulk Matter
Topic: Thermal Properties of Matter MCQs
Board: CBSE Board Examination (Strictly NCERT Based)
Subject: Physics
Section: Properties of Bulk Matter
Topic: Thermal Properties of Matter MCQs
Board: CBSE Board Examination (Strictly NCERT Based)
Q1. Heat is a form of:
Answer: B
Explanation: Heat is energy transferred due to temperature difference.
Explanation: Heat is energy transferred due to temperature difference.
Q2. SI unit of heat:
Answer: B
Explanation: Heat is a form of energy, SI unit is joule.
Explanation: Heat is a form of energy, SI unit is joule.
Q3. Temperature measures:
Answer: B
Explanation: Temperature indicates average kinetic energy of molecules.
Explanation: Temperature indicates average kinetic energy of molecules.
Q4. SI unit of temperature:
Answer: Kelvin
Explanation: Kelvin is the SI unit of temperature.
Explanation: Kelvin is the SI unit of temperature.
Q5. Heat transfer without medium occurs by:
Answer: C
Explanation: Radiation does not require any medium.
Explanation: Radiation does not require any medium.
Q6. Thermal expansion occurs due to:
Answer: Increased molecular separation.
Q7. Coefficient of linear expansion unit:
Answer: K⁻¹.
Q8. Solids expand least because:
Answer: Strong intermolecular forces.
Q9. Anomalous expansion of water occurs between:
Answer: 0°C to 4°C.
Q10. Specific heat depends on:
Answer: Nature of substance.
Q11. Unit of specific heat capacity:
Answer: J kg⁻¹ K⁻¹.
Q12. Substance with high specific heat:
Answer: Water.
Q13. Latent heat unit:
Answer: J/kg.
Q14. Heat required for phase change at constant temperature:
Answer: Latent heat.
Q15. Ice at 0°C has:
Answer: Less heat than water at 0°C.
Q16. Good conductor of heat:
Answer: Metals.
Q17. Poor conductor of heat:
Answer: Wood.
Q18. Newton’s law of cooling valid for:
Answer: Small temperature difference.
Q19. Black body absorbs:
Answer: All radiation.
Q20. Best emitter of heat:
Answer: Black surface.
Q21. Thermal conductivity unit:
Answer: W m⁻¹ K⁻¹.
Q22. Sea breeze occurs due to:
Answer: Convection.
Q23. Thermal equilibrium when:
Answer: Same temperature.
Q24. Expansion in gases is:
Answer: Maximum.
Q25. Clinical thermometer range:
Answer: 35°C to 42°C.
Q26. Absolute zero value:
Answer: 0 K.
Q27. Heat flows from:
Answer: Higher to lower temperature.
Q28. Thermometer works on:
Answer: Thermal expansion.
Q29. Water pipes burst in winter due to:
Answer: Expansion of water on freezing.
Q30. SI unit of thermal expansion coefficient:
Answer: K⁻¹.
