Sub-topic 1
2026 · National Quarterfinal
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Newton's law of cooling: rate of temperature change under convection-dominated heat loss
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Sub-topic 2
2026 · National Quarterfinal
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Proportionality of conductive heat transfer rate to cross-sectional area
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Sub-topic 3
2024 · National One-Eighth
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Mechanism and conditions of heat transfer by conduction (true/false)
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Sub-topic 4
2012 · National Preliminary
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Ranking common materials by thermal conductivity
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Sub-topic 5
2012 · National Preliminary
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Minimizing radiative heat transfer in a dewar flask via silvered walls
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Sub-topic 6
2012 · National Preliminary
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The vacuum jacket of a dewar flask preventing conductive and convective heat loss
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Sub-topic 7
2014 · National Quarterfinal
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Heat transfer rate across a slab from thermal conductivity, area, thickness and temperature difference
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Sub-topic 8
2014 · National Quarterfinal
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Heat transfer rate across window glass from thermal conductivity, area, thickness and temperature difference
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Sub-topic 9
2014 · National Quarterfinal
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Temperature difference across a slab from heat-transfer rate, conductivity, area and thickness
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Sub-topic 10
2014 · National Quarterfinal
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Why metal feels cooler than wood at the same temperature (thermal conductivity)
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Sub-topic 11
2014 · National Quarterfinal
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Why ceiling air is warmer than floor air without ventilation (convection/stratification)
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Sub-topic 12
2017 · National Quarterfinal
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Convection occurs in gases as well as liquids, not liquids alone (true/false)
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Sub-topic 13
2017 · National Quarterfinal
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Gases can transfer heat by both radiation and convection (true/false)
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Sub-topic 14
2017 · National Quarterfinal
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Radiation occurs through matter too, not only vacuum (true/false)
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