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  1. Problems
  2. /A-Level

A-Level problems

501 problems for A-Level practice, each with a worked solution. Try each one on paper first, then check your answer.

Other examsJEE MainJEE AdvancedNEETBITSATWBJEEBoard ExamOlympiadSATAPIBGaokaoPCEP (Python Institute)PCAP (Python Institute)

Choose a topic to see its subtopics.

236 problems
Type:
1.
1.2 mol of a monatomic ideal gas at 450 K expands adiabatically until it has cooled to 310 K.
High School (11–12) · Thermodynamic Processes and Specific Heats of GasesNEET, Board Exam, AP, A-Level, IBStemPy LabStemPy Lab
Medium
2.
A gas takes in 210 J of heat. At the same time a piston does 75 J of work on it.
High School (11–12) · Laws of ThermodynamicsBoard Exam, AP, A-Level, IBStemPy LabStemPy Lab
Easy
3.
In a Joule experiment a 12 kg weight falls 1.5 m and turns a paddle wheel in an insulated tank of…
High School (11–12) · Laws of ThermodynamicsBoard Exam, AP, A-Level, IBStemPy LabStemPy Lab
Easy
4.
Which of these are state functions: pressure, heat, work, internal energy, temperature, volume?
High School (11–12) · Laws of ThermodynamicsNEET, Board Exam, AP, A-Level, IBStemPy LabStemPy Lab
Medium
5.
A party balloon holds 1.5 mol of helium, a monatomic gas, at 280 K.
High School (11–12) · Laws of ThermodynamicsBoard Exam, AP, A-Level, IBStemPy LabStemPy Lab
Medium
6.
Find Δ U for a gas in each case, and say whether it gets warmer or cooler.
High School (11–12) · Laws of ThermodynamicsBoard Exam, AP, A-Level, IBStemPy LabStemPy Lab
Easy
7.
A gas in a well-insulated cylinder pushes a piston out against a steady outside pressure of 0.90 ×…
High School (11–12) · Laws of ThermodynamicsBoard Exam, AP, A-Level, IBStemPy LabStemPy Lab
Medium
8.
1.5 g of water at 100 °C boils at 1.013 × 10⁵ Pa.
High School (11–12) · Laws of ThermodynamicsNEET, Board Exam, A-Level, IBStemPy LabStemPy Lab
Medium
9.
A lead bullet at 30 °C hits a steel plate at 340 m/s and stops.
High School (11–12) · Laws of ThermodynamicsJEE Main, NEET, BITSAT, WBJEE, Board Exam, A-Level, IBStemPy LabStemPy Lab
Hard
10.
A gas at a steady 1.4 × 10⁵ Pa is squeezed from 8.0 to 3.5 litres.
High School (11–12) · Laws of ThermodynamicsBoard Exam, AP, A-Level, IBStemPy LabStemPy Lab
Easy
11.
On a pressure-volume graph a gas goes from A (1.5 L, 4.6 × 10⁵ Pa) to B (3.5 L, 1.8 × 10⁵ Pa) along…
High School (11–12) · Laws of ThermodynamicsNEET, Board Exam, AP, A-Level, IBStemPy LabStemPy Lab
Medium
12.
A gas goes clockwise round a triangle ABCA on a pressure-volume graph.
High School (11–12) · Laws of ThermodynamicsNEET, Board Exam, AP, A-Level, IBStemPy LabStemPy Lab
Hard
13.
The light of a star is strongest at a wavelength of 410 nm.
High School (11–12) · Heat TransferBoard Exam, A-Level, IBStemPy LabStemPy Lab
Easy
14.
A red giant star radiates a power of 2.0 × 10²⁹ W from a surface at 3500 K.
High School (11–12) · Heat TransferBoard Exam, A-Level, IBStemPy LabStemPy Lab
Hard
15.
A 1200 W stove passes 75% of its heat to a pan of 2.0 kg of water at 25 °C.
High School (11–12) · Calorimetry and Change of StateBoard Exam, A-Level, IBStemPy LabStemPy Lab
Easy
16.
15 kJ of heat is given to 0.40 kg of aluminium, 0.40 kg of iron and 0.40 kg of copper.
High School (11–12) · Calorimetry and Change of StateBoard Exam, AP, A-Level, IBStemPy LabStemPy Lab
Medium
17.
A 150 W heater is put in 0.60 kg of oil.
High School (11–12) · Calorimetry and Change of StateBoard Exam, AP, A-Level, IBStemPy LabStemPy Lab
Medium
18.
A 0.25 kg piece of metal at 120 °C is dropped into 0.60 kg of water at 18 °C in a 0.10 kg copper…
High School (11–12) · Calorimetry and Change of StateBoard Exam, AP, A-Level, IBStemPy LabStemPy Lab
Medium
19.
2.0 kg of water at 65 °C is mixed with 1.5 kg at 25 °C.
High School (11–12) · Calorimetry and Change of StateBoard Exam, AP, A-Level, IBStemPy LabStemPy Lab
Easy
20.
A 0.60 kg copper block at 85 °C is put into 0.40 kg of water at 15 °C.
High School (11–12) · Calorimetry and Change of StateBoard Exam, AP, A-Level, IBStemPy LabStemPy Lab
Medium
21.
A copper calorimeter of mass 0.18 kg holds 0.25 kg of water at 16 °C.
High School (11–12) · Calorimetry and Change of StateBoard Exam, A-Level, IBStemPy LabStemPy Lab
Hard
22.
How much heat turns 0.40 kg of ice at -15 °C into water at 35 °C?
High School (11–12) · Calorimetry and Change of StateNEET, Board Exam, A-Level, IBStemPy LabStemPy Lab
Medium
23.
A glass holds 0.35 kg of water at 28 °C.
High School (11–12) · Calorimetry and Change of StateNEET, Board Exam, A-Level, IBStemPy LabStemPy Lab
Medium
24.
Compare two burns. 15 g of steam at 100 °C condenses on the skin and cools to 37 °C.
High School (11–12) · Calorimetry and Change of StateBoard Exam, A-Level, IBStemPy LabStemPy Lab
Medium
25.
A tyre gauge reads 2.2 atm at 20 °C. After a long drive the air inside is at 50 °C.
High School (11–12) · Temperature and Thermal Expansion, Kinetic Theory of GasesNEET, Board Exam, AP, A-Level, IBStemPy LabStemPy Lab
Medium
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