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 84: A New South Wales senior class applies the information to a coastal community planning problem. An enzyme extracted from fruit flies is tested at 26°C. Which statement about enzyme action is correct?

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nsw-hsc New South Wales HSC Sciences AustraliaMedium

Science task 85: A New South Wales senior class applies the information to a coastal community planning problem. Cells from the skin of a growing organism undergo mitosis. What is the usual outcome?

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nsw-hsc New South Wales HSC Sciences AustraliaMedium

Science task 86: A New South Wales senior class applies the information to a coastal community planning problem. A solution has pH 6. What is its hydrogen-ion concentration?

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nsw-hsc New South Wales HSC Sciences AustraliaMedium

Science task 87: A New South Wales senior class applies the information to a coastal community planning problem. A device transfers 479 J in 15 s. What is its average power?

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nsw-hsc New South Wales HSC Sciences AustraliaMedium

Science task 88: A New South Wales senior class applies the information to a coastal community planning problem. In experiment 28, pH is varied while growth of pea seedlings is measured. Why include an untreated control?

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nsw-hsc New South Wales HSC Sciences AustraliaMedium

Science task 89: A New South Wales senior class applies the information to a coastal community planning problem. In genetic cross 29, 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 AustraliaMedium

Science task 76: A New South Wales senior class applies the information to a coastal community planning problem. A solution has pH 4. What is its hydrogen-ion concentration?

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nsw-hsc New South Wales HSC Sciences AustraliaMedium

Science task 77: A New South Wales senior class applies the information to a coastal community planning problem. A device transfers 449 J in 36 s. What is its average power?

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nsw-hsc New South Wales HSC Sciences AustraliaMedium

Science task 78: A New South Wales senior class applies the information to a coastal community planning problem. In experiment 18, temperature is varied while growth of bacteria is measured. Why include an untreated control?

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nsw-hsc New South Wales HSC Sciences AustraliaMedium

Science task 71: A New South Wales senior class applies the information to a coastal community planning problem. A 13 kg test trolley accelerates at 5 m/s². What net force acts on it?

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nsw-hsc New South Wales HSC Sciences AustraliaMedium

Science task 72: A New South Wales senior class applies the information to a coastal community planning problem. A circuit has 5 V across a 2 Ω resistor. What current flows?

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nsw-hsc New South Wales HSC Sciences AustraliaMedium

Science task 73: 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 5 mol?

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