MCQ Collection

South Australia SACE Sciences MCQs

Practice South Australia SACE Sciences questions with answers and explanations.

sa-sace South Australia SACE Sciences AustraliaMedium

Science task 94: A South Australian senior class applies the information to a water, agriculture or urban-design investigation. An enzyme extracted from mice is tested at 22°C. Which statement about enzyme action is correct?

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sa-sace South Australia SACE Sciences AustraliaMedium

Science task 95: A South Australian senior class applies the information to a water, agriculture or urban-design investigation. Cells from the bone marrow of a growing organism undergo mitosis. What is the usual outcome?

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sa-sace South Australia SACE Sciences AustraliaMedium

Science task 96: A South Australian senior class applies the information to a water, agriculture or urban-design investigation. A solution has pH 8. What is its hydrogen-ion concentration?

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sa-sace South Australia SACE Sciences AustraliaMedium

Science task 97: A South Australian senior class applies the information to a water, agriculture or urban-design investigation. A device transfers 509 J in 18 s. What is its average power?

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sa-sace South Australia SACE Sciences AustraliaMedium

Science task 98: A South Australian senior class applies the information to a water, agriculture or urban-design investigation. In experiment 38, temperature is varied while growth of fruit flies is measured. Why include an untreated control?

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sa-sace South Australia SACE Sciences AustraliaMedium

Science task 89: A South Australian senior class applies the information to a water, agriculture or urban-design investigation. In genetic cross 29, two heterozygotes Aa are crossed under complete dominance. What is the probability of a dominant phenotype?

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sa-sace South Australia SACE Sciences AustraliaHard

Science task 90: A South Australian senior class applies the information to a water, agriculture or urban-design investigation. A tracer starts at 0.16 mol and undergoes 2 half-lives of 6 minutes each. How much remains?

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sa-sace South Australia SACE Sciences AustraliaMedium

Science task 91: A South Australian senior class applies the information to a water, agriculture or urban-design investigation. A 17 kg test trolley accelerates at 16 m/s². What net force acts on it?

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sa-sace South Australia SACE Sciences AustraliaMedium

Science task 79: A South Australian senior class applies the information to a water, agriculture or urban-design investigation. In genetic cross 19, two heterozygotes Aa are crossed under complete dominance. What is the probability of a dominant phenotype?

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sa-sace South Australia SACE Sciences AustraliaHard

Science task 80: A South Australian senior class applies the information to a water, agriculture or urban-design investigation. A tracer starts at 0.14 mol and undergoes 4 half-lives of 3 minutes each. How much remains?

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sa-sace South Australia SACE Sciences AustraliaMedium

Science task 81: A South Australian senior class applies the information to a water, agriculture or urban-design investigation. A 7 kg test trolley accelerates at 6 m/s². What net force acts on it?

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sa-sace South Australia SACE Sciences AustraliaMedium

Science task 82: A South Australian senior class applies the information to a water, agriculture or urban-design investigation. A circuit has 7 V across a 10 Ω resistor. What current flows?

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