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.A brass ball of mass 100 g is heated to 100°C and then dropped into 400 g of turpentine oil at 15°C in a calorimeter. The final temperature recorded is 23°C. The specific heat capacity of turpentine oil is to be determined. The mass of the calorimeter is 50 g and it is made of copper. Calculate the specific heat capacity of turpentine oil. (SHC for brass = 370 J Kg⁻¹ K⁻¹; SHC of copper = 390 J Kg⁻¹ K⁻¹)
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2.The S.I. unit of specific latent heat is
- A.cal g⁻¹
- B.cal g⁻¹ K⁻¹
- C.J kg⁻¹
- D.J kg⁻¹ K⁻¹
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3.A refrigerator converts 100 g of water at 20°C to ice at -10°C in 35 minutes. What is the average rate of heat extraction in watts? (Specific heat capacity of ice = 2.1 J/g°C; Specific heat capacity of water = 4.2 J/g°C; Specific latent heat of fusion of ice = 336 J/g).
- A.15 W
- B.21 W
- C.28 W
- D.35 W
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4.Why does the temperature of the surroundings start falling when the ice of a frozen lake starts melting?
- A.Ice releases cold air as it melts.
- B.Ice absorbs latent heat from the surroundings to melt.
- C.The water from melting ice cools the air.
- D.The ice reflects heat away from the surroundings.
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5.What is the principle of the method of mixtures, what other name is it known by, and which fundamental law underlies this principle?
- A.Heat lost by the hot body equals heat gained by the cold body; principle of calorimetry; law of conservation of energy.
- B.Heat lost by the cold body equals heat gained by the hot body; principle of thermal equilibrium; law of entropy.
- C.Heat transfer depends on mass and temperature difference; principle of thermodynamics; Newton's law of cooling.
- D.Heat energy is conserved only in isolated systems; principle of heat exchange; law of specific heat capacity.
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