Thermal Properties of Matter – True/False Master Drill

Sharpen your concepts of heat, temperature, expansion, calorimetry and radiation before you touch the numericals. Test yourself with carefully curated NCERT‑based True/False questions from Chapter 10.

One screen. High‑yield statements. Instant conceptual reality check.

Heat
Cold
T/F
Class XI • NCERT • Chapter 10
Quick Chapter Snapshot
Temperature vs heat and measurement scales
Thermal expansion of solids, liquids and gases
Specific heat capacity and calorimetry
Change of state and latent heat
Heat transfer: conduction, convection, radiation
Stefan–Boltzmann & Newton’s cooling law
Why This Chapter Matters
Forms the bridge between mechanics and thermodynamics.
Direct questions in CBSE boards plus concept‑heavy numericals in JEE & NEET.
Builds intuition for cooling, boiling, melting, weather and engines.
Lays foundation for kinetic theory, thermodynamics and heat engines.
Key Concepts Highlights
Temperature as a measure of average molecular kinetic energy.
Thermal expansion coefficients and anomalous expansion of water.
Specific heat vs latent heat and heat capacity ideas.
Heat transfer modes and thermal conductivity.
Blackbody, emissivity, Wien’s law and Stefan–Boltzmann law.
What You Will Learn From These True/False Questions
Separate clearly between heat, temperature and internal energy.
Judge statements on expansion, specific heat and latent heat instantly.
Know when temperature changes and when it stays constant in phase change.
Classify conduction, convection and radiation by need of medium.
Recall Kirchhoff’s, Wien’s and Stefan–Boltzmann laws from short cues.
Spot traps commonly used in CBSE, JEE Main and NEET T/F or MCQs.
Exam Strategy: How to Use These Statements
First pass: answer from memory only – no notes, no textbook.
Second pass: retry doubtful ones after a quick NCERT revision.
Always write why a statement is false – unit, condition or concept.
Turn each statement into a possible MCQ stem or assertion‑reason pair.
Use this page as a last‑day high‑yield checklist before the exam.
Preparation Tips & Study Strategy
Read NCERT in order: temperature, heat, expansion, specific heat, calorimetry, phase change, then heat transfer.
Map each True/False statement to a specific NCERT line, figure or example.
Chunk questions by theme: temperature & heat, expansion, special water behavior, calorimetry, heat transfer, radiation laws, cooling & conductivity.
Rewrite every false statement in its correct form to reinforce learning.
After this drill, jump to worked examples and past‑year numericals on calorimetry, expansion and radiation.
True/False Concept Spectrum
Items 1–4: nature of temperature, heat and thermal energy.
Items 5–10 & 24: thermal expansion, anomalous water expansion, thermal stress.
Items 11–16: specific heat, calorimetry and latent heat with phase change.
Items 17–20: conduction, convection, radiation and blackbody basics.
Items 21–23: Kirchhoff’s law, Wien’s law and Stefan–Boltzmann law.
Items 25–26: Newton’s cooling law and role of thermal conductivity.

Attempt the questions below and then unlock explanations to see which micro‑concept needs polishing.

Your Progress 0 / 25 attempted
Q 01 / 25
Temperature is a measure of the average kinetic energy of the molecules of a substance.
Q 02 / 25
Heat and temperature represent the same physical quantity.
Q 03 / 25
The SI unit of temperature is degree Celsius.
Q 04 / 25
Two bodies at the same temperature must contain the same amount of heat.
Q 05 / 25
Thermal expansion occurs due to increase in intermolecular separation on heating.
Q 06 / 25
Solids expand more than liquids for the same rise in temperature.
Q 07 / 25
Linear expansion is observed only in solids.
Q 08 / 25
The coefficient of linear expansion has the dimension of inverse temperature.
Q 09 / 25
Anomalous expansion of water occurs between \(0^\circ\text{C}\) and \(4^\circ\text{C}\).
Q 10 / 25
Ice floats on water because it is denser than liquid water.
Q 11 / 25
Specific heat capacity depends on the mass of the substance.
Q 12 / 25
Substances with high specific heat change temperature slowly.
Q 13 / 25
The principle of calorimetry is based on conservation of energy.
Q 14 / 25
Latent heat is required to change the temperature of a substance.
Q 15 / 25
During melting, temperature remains constant despite continuous heat supply.
Q 16 / 25
The latent heat of vaporization is generally greater than the latent heat of fusion.
Q 17 / 25
Heat conduction requires a material medium.
Q 18 / 25
Convection can occur in solids.
Q 19 / 25
Radiation can occur even in vacuum.
Q 20 / 25
A black body is one that reflects all incident radiation.
Q 21 / 25
Kirchhoff’s law relates emissivity and absorptivity at thermal equilibrium.
Q 22 / 25
Wien’s displacement law states that total energy radiated is proportional to \(T^4\).
Q 23 / 25
According to Stefan–Boltzmann law, radiant energy emitted increases rapidly with temperature.
Q 24 / 25
Newton’s law of cooling is accurate for very large temperature differences.
Q 25 / 25
Thermal conductivity of a material depends on its microscopic structure.
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