ICSE Class 10 Heat — Mock Test (2027)
Free online mock test for Heat (ICSE Class 10 Physics) — 20 competency-based questions based on the latest CISCE 2027 syllabus, with instant marking. Try the samples below, then take the full test free.
What to expect: This mock test covers key concepts from the Heat chapter — including application-based and competency-focused questions aligned with how ICSE actually sets the paper.
Tip: Attempt without notes first to identify gaps, then review explanations for any wrong answers. Retake after a few days for best retention.
Sample questions
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1.An iron ball requires 5000 J heat energy to raise its temperature by 10°C. What is the heat capacity of the iron ball?
- A.50 J K⁻¹
- B.500 J K⁻¹
- C.5000 J K⁻¹
- D.500 J °C⁻¹
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2.Which of the following correctly states the principle of calorimetry and provides its accurate mathematical expression?
- A.Heat lost by a hot body equals heat gained by a cold body when no heat is lost to surroundings; $m_1 c_1 (t_1 - t) = m_2 c_2 (t - t_2)$.
- B.Heat lost by a hot body is always greater than heat gained by a cold body; $m_1 c_1 t_1 > m_2 c_2 t_2$.
- C.The total heat of a system remains constant regardless of temperature changes; $m_1 c_1 + m_2 c_2 = ext{constant}$.
- D.Heat gained by a cold body is independent of the hot body's temperature; $m_2 c_2 (t - t_2)$ only.
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3.40 g of water at 60°C is poured into a vessel containing 50 g of water at 20°C. The final temperature recorded is 30°C. What is the thermal capacity of the vessel? (Specific heat capacity of water = 4.2 J g⁻¹ °C⁻¹).
- A.168 J °C⁻¹
- B.294 J °C⁻¹
- C.420 J °C⁻¹
- D.588 J °C⁻¹
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4.Why does the temperature of a substance remain constant during melting and vaporisation even when heat is being supplied to it continuously?
- A.The heat supplied is used to increase the kinetic energy of the molecules, raising the temperature.
- B.The heat supplied is absorbed as latent heat to overcome intermolecular forces, not to raise temperature.
- C.The substance loses heat to the surroundings at the same rate it is being supplied.
- D.The temperature remains constant because the substance stops absorbing heat during phase changes.
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5.10 g of ice at 0°C absorbs 5460 J of heat energy to melt and change to water at 50°C. Calculate the specific latent heat of fusion of ice. Specific heat capacity of water is 4200 J kg⁻¹ K⁻¹.
- A.336 J g⁻¹
- B.210 J g⁻¹
- C.546 J g⁻¹
- D.420 J g⁻¹
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