ZIMSEC O-Level Physics
7.2Thermal properties
Thermal properties in ZIMSEC O-Level Physics: what the syllabus expects you to know, the learning objectives and how to practise.
Subtopic45 practice questions5 lessons
Overview
Form 3: expansion, thermometers, melting and boiling, specific heat capacity, specific latent heat.
Learning objectives
What the syllabus expects you to be able to do.
- 7.2.1Compare qualitatively the expansion of solids, liquids and gases.
- 7.2.2Explain applications and consequences of thermal expansion and contraction.
- 7.2.3Describe how a physical property that varies with temperature is used to measure temperature, and name such properties.
- 7.2.4State the need for fixed points and identify them; describe sensitivity, range and linearity.
- 7.2.5Describe liquid-in-glass (laboratory and clinical) thermometers and thermocouples, with their advantages and disadvantages.
- 7.2.6Define and describe melting and boiling as energy transfer without a change of temperature.
- 7.2.7Describe the effect of impurities and pressure on melting and boiling points.
- 7.2.8Determine the specific heat capacity of a liquid and a solid and calculate heat transfer from experimental data.
- 7.2.9Explain why different materials have different heat capacities.
- 7.2.10Define and calculate specific latent heat using Q = ml.
Lessons
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Measuring temperature: thermometers
22 min
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Melting, boiling and evaporation
25 min
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Specific heat capacity
28 min
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Specific latent heat
25 min
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Thermal expansion
20 min
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Sample question
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Turn Thermal properties into a strength.
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