Thermal Physics
Each subtopic includes About section, revision page link, 10 preview questions, and practice CTAs.
Kinetic particle model of matter
SubtopicKinetic particle model of matter under Thermal Physics for Grade 12 IGCSE.
Preview questions (no answers)
- 1.
Which process explains the cooling effect of a liquid when it evaporates from a surface?
A.The fastest-moving molecules escape, leaving behind molecules with lower average kinetic energy.
B.The slowest-moving molecules escape, increasing the average kinetic energy of the remainder.
C.Thermal energy is transferred from the surroundings to the escaping molecules.
D.The liquid absorbs latent heat from the air to increase its temperature.
- 2.
What is the approximate value of absolute zero on the Celsius scale?
A.C
B.C
C.C
D.C
- 3.
Which of the following describes the arrangement and motion of particles in a liquid?
A.Particles are far apart and move randomly at high speeds.
B.Particles are closely packed and vibrate about fixed positions.
C.Particles are close together and can slide past one another.
D.Particles are arranged in a regular lattice and do not move.
Download the worksheet for Thermal Physics - Kinetic particle model of matter to practice offline. It includes additional chapter-level practice questions.
Thermal properties and temperature
SubtopicThermal properties and temperature under Thermal Physics for Grade 12 IGCSE.
Preview questions (no answers)
- 1.
A thermometer is calibrated using the Celsius scale. If it reads a temperature of , what is the equivalent temperature in Kelvin?
A.B.C.D. - 2.
A student records the temperature of a substance as it is heated. The diagram below shows the phases of the substance. During which labeled section is the internal potential energy increasing while the average kinetic energy remains constant?
A.A and C
B.B and D
C.Only B
D.Only D
- 3.
Which of the following is the correct SI unit for specific heat capacity?
A.B.C.D.
Download the worksheet for Thermal Physics - Thermal properties and temperature to practice offline. It includes additional chapter-level practice questions.
Transfer of thermal energy
SubtopicTransfer of thermal energy under Thermal Physics for Grade 12 IGCSE.
Preview questions (no answers)
- 1.
Energy from the Sun reaches the Earth through the vacuum of space. Which statement about this transfer is correct?
A.It occurs via infrared radiation, which does not require a medium.
B.It occurs via conduction through trace gas particles in space.
C.It occurs via convection currents in the interstellar medium.
D.It occurs via ultraviolet longitudinal waves.
- 2.
Which process of thermal energy transfer is responsible for the formation of sea breezes during a sunny day?
A.Conduction from the sea to the air
B.Convection caused by the temperature difference between land and sea
C.Radiation reflected from the surface of the water
D.Evaporation of water molecules from the ocean surface
- 3.
A student places four identical cans filled with boiling water in a room. The cans are painted different colors. Which can will cool down the fastest?
A.The dull black can
B.The shiny silver can
C.The dull white can
D.The shiny white can
Download the worksheet for Thermal Physics - Transfer of thermal energy to practice offline. It includes additional chapter-level practice questions.