Sub-topic 1
2024 · National Preliminary
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Physical quantity riddles: wave properties
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Sub-topic 2
2024 · National Preliminary
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Physical quantity riddles: wave properties
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Sub-topic 3
2023 · National One-Eighth
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Riddle: amplitude of a vibrating system
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Sub-topic 4
2013 · National Preliminary
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Ranking visible-light colours by increasing frequency
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Sub-topic 5
2013 · National Semifinal
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Light-coloured clothing reflects more heat, keeping the wearer cooler
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Sub-topic 6
2016 · National Preliminary
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Ranking the speed of yellow light in different media (vacuum fastest, glass slowest)
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Sub-topic 7
2020 · National One-Eighth
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Identifying the standard form of a progressive sinusoidal wave (true/false)
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Sub-topic 8
2020 · National One-Eighth
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Particle velocity amplitude is $\omega A$, not $A$ (true/false)
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