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Class 11 Thermal Properties of Matter worksheet
CBSE Physics. Temperature scales, expansion, calorimetry, latent heat, conduction, cooling. Every sheet has 20 questions in three sections and an answer key, and the numbers change every time.
Sample questions
Real questions from this chapter, as the app sets them. Tap Answer to see the answer and working.
Section A · multiple choice
- 1.
60 °C on the Fahrenheit scale is:
- 65.33 °F
- 108 °F
- 92 °F
- 140 °F
Answer
(d) 140 °F
F = 9C/5 + 32
- 2.
A lead rod 37 m long is heated through 90 K. Its increase in length is (α = 2.9 × 10⁻⁵ K⁻¹):
- 96.57 mm
- 965.7 mm
- 9.657 mm
- 289.71 mm
Answer
(a) 96.57 mm
ΔL = αLΔT
- 3.
How much heat raises the temperature of 0.1 kg of copper by 20 K? (specific heat 390 J/kg K)
- 7,800 J
- 2 J
- 39 J
- 780 J
Answer
(d) 780 J
Q = mcΔT
Section B · short answer
- 4.
Convert (a) −35 °C to °F and to K, (b) 419 °F to °C.
Answer
(a) −31 °F, 238.15 K; (b) 215 °C
F = 9C/5 + 32; K = C + 273.15
- 5.
A square iron plate of side 80 cm is heated through 75 K. Find the increase in its area and the increase in the volume of an iron cube of side 80 cm. (α = 1.2 × 10⁻⁵ K⁻¹)
Answer
ΔA = 11.52 cm²; ΔV = 1,382.4 cm³
ΔA = 2αAΔT; ΔV = 3αVΔT
Section C · long answer
- 6.
A aluminium calorimeter of mass 0.3 kg contains 0.6 kg of water at 20 °C. A 0.1 kg aluminium block at 100 °C is dropped in. Find the final temperature. (c of aluminium 900 J/kg K; c of water 4200 J/kg K) (2 decimal places where needed.)
Answer
22.5 °C
heat lost by the block = heat gained by the water + calorimeter
Fresh sheets for your child
In the app, every Thermal Properties of Matter sheet is new: the app remembers the questions your child has already had and leaves them out. Print the sheet as a PDF, or use notebook mode and write the answers in a notebook.
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