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.

Sample questions

1. 1.Two identical calorimeters A and B contain equal quantity of water at 20°C. A 5 g piece of metal X of specific heat 0.2 cal g⁻¹ °C⁻¹ is dropped into A and a 5 g piece of metal Y into B. The equilibrium temperature in A is 22°C and in B is 23°C. The initial temperature of both the metals is 40°C. Find the specific heat of metal Y in cal g⁻¹ °C⁻¹.
2. 2.Which of the following correctly defines the term heat?
   • A.Heat is a form of energy that flows from a body at higher temperature to a body at lower temperature due to the temperature difference between them.
   • B.Heat is the total kinetic energy possessed by the molecules of a body.
   • C.Heat is the degree of hotness or coldness measured by a thermometer.
   • D.Heat is a force that causes temperature to rise in a substance.
3. 3.Which of the following is not a greenhouse gas?
   • A.ozone
   • B.methane
   • C.carbon dioxide
   • D.chlorofluorocarbons
4. 4.The specific heat capacity of iron is given as 0.479 kJ kg⁻¹ °C⁻¹. What does this statement imply?
   • A.0.479 kJ of heat raises 1 kg of iron by 10°C.
   • B.0.479 kJ of heat is required to raise 1 kg of iron by 1°C.
   • C.Iron loses 0.479 kJ of heat per kg per °C.
   • D.0.479 kJ of heat melts 1 kg of iron.
5. 5.250 g of water at 30°C is contained in a copper vessel of mass 50 g. Calculate the mass of ice required to bring down the temperature of the vessel and its contents to 5°C. Given: specific latent heat of fusion of ice = 336 × 10³ J kg⁻¹, specific heat capacity of copper = 400 J kg⁻¹ K⁻¹, specific heat capacity of water = 4200 J kg⁻¹ K⁻¹.
   • A.74.93 g
   • B.68.20 g
   • C.85.50 g
   • D.52.10 g