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.How does a desert cooler lower the temperature, and why does it become ineffective after the monsoon sets in?
   • A.It circulates cold water; humidity prevents water circulation.
   • B.It uses evaporative cooling; humidity prevents evaporation.
   • C.It compresses air; humidity increases air pressure.
   • D.It radiates heat; humidity absorbs radiation.
2. 2.Why are bottled soft drinks more effectively cooled by cubes of ice than by ice water?
   • A.Ice cubes have a larger surface area than ice water.
   • B.Ice cubes absorb latent heat while melting, providing extra cooling.
   • C.Ice water is warmer than ice cubes.
   • D.Ice cubes dissolve faster in soft drinks than ice water.
3. 3.The quantity of heat absorbed by a body depends on which of the following factors?
   • A.Mass of the body, increase in temperature, and color of the body
   • B.Mass of the body, increase in temperature, and material of the body
   • C.Volume of the body, pressure applied, and material of the body
   • D.Density of the body, initial temperature, and shape of the body
4. 4.4000 calories of heat energy is supplied to crushed ice at $0^{\circ}\mathrm{C}$, such that it completely melts to form water at $0^{\circ}\mathrm{C}$. If sp. latent heat of fusion of ice is $80\mathrm{calg}^{-1}$, what is the mass of ice?
5. 5.Calculate the total amount of heat energy required to convert 100 g of ice at −10°C completely into water at 100°C. Specific heat capacity of ice = 2·1 J g⁻¹ K⁻¹, specific heat capacity of water = 4·2 J g⁻¹ K⁻¹, specific latent heat of ice = 336 J g⁻¹.
   • A.7.77 × 10⁴ J
   • B.4.20 × 10⁴ J
   • C.3.57 × 10⁴ J
   • D.8.40 × 10⁴ J