MCQ Collection

New South Wales HSC Sciences MCQs

Practice New South Wales HSC Sciences questions with answers and explanations.

nsw-hsc New South Wales HSC Sciences AustraliaMedium

Science task 96: A New South Wales senior class applies the information to a coastal community planning problem. A solution has pH 8. What is its hydrogen-ion concentration?

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nsw-hsc New South Wales HSC Sciences AustraliaMedium

Science task 97: A New South Wales senior class applies the information to a coastal community planning problem. A device transfers 509 J in 25 s. What is its average power?

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nsw-hsc New South Wales HSC Sciences AustraliaMedium

Science task 98: A New South Wales senior class applies the information to a coastal community planning problem. In experiment 38, temperature is varied while growth of fruit flies is measured. Why include an untreated control?

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nsw-hsc New South Wales HSC Sciences AustraliaMedium

Science task 99: A New South Wales senior class applies the information to a coastal community planning problem. In genetic cross 39, two heterozygotes Aa are crossed under complete dominance. What is the probability of a dominant phenotype?

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nsw-hsc New South Wales HSC Sciences AustraliaHard

Science task 100: A New South Wales senior class applies the information to a coastal community planning problem. A tracer starts at 0.12 mol and undergoes 4 half-lives of 5 minutes each. How much remains?

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nsw-hsc New South Wales HSC Sciences AustraliaHard

Science task 90: A New South Wales senior class applies the information to a coastal community planning problem. A tracer starts at 0.10 mol and undergoes 2 half-lives of 2 minutes each. How much remains?

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nsw-hsc New South Wales HSC Sciences AustraliaMedium

Science task 91: A New South Wales senior class applies the information to a coastal community planning problem. A 4 kg test trolley accelerates at 8 m/s². What net force acts on it?

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nsw-hsc New South Wales HSC Sciences AustraliaMedium

Science task 79: A New South Wales senior class applies the information to a coastal community planning problem. In genetic cross 19, two heterozygotes Aa are crossed under complete dominance. What is the probability of a dominant phenotype?

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nsw-hsc New South Wales HSC Sciences AustraliaHard

Science task 80: A New South Wales senior class applies the information to a coastal community planning problem. A tracer starts at 0.26 mol and undergoes 4 half-lives of 6 minutes each. How much remains?

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nsw-hsc New South Wales HSC Sciences AustraliaMedium

Science task 81: A New South Wales senior class applies the information to a coastal community planning problem. A 23 kg test trolley accelerates at 15 m/s². What net force acts on it?

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nsw-hsc New South Wales HSC Sciences AustraliaMedium

Science task 82: A New South Wales senior class applies the information to a coastal community planning problem. A circuit has 15 V across a 12 Ω resistor. What current flows?

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nsw-hsc New South Wales HSC Sciences AustraliaMedium

Science task 83: A New South Wales senior class applies the information to a coastal community planning problem. A compound has molar mass 26 g mol⁻¹. What is the mass of 3 mol?

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