MCQ Collection

sa-sace MCQs

Practice sa-sace questions with answers and explanations.

sa-sace South Australia SACE Sciences AustraliaMedium

Science task 108: A South Australian senior class applies the information to a water, agriculture or urban-design investigation. In experiment 48, pH is varied while growth of mice is measured. Why include an untreated control?

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sa-sace South Australia SACE Sciences AustraliaMedium

Science task 109: A South Australian senior class applies the information to a water, agriculture or urban-design investigation. In genetic cross 49, 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 110: A South Australian senior class applies the information to a water, agriculture or urban-design investigation. A tracer starts at 0.20 mol and undergoes 2 half-lives of 5 minutes each. How much remains?

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sa-sace South Australia SACE Sciences AustraliaMedium

Science task 99: A South Australian senior class applies the information to a water, agriculture or urban-design investigation. In genetic cross 39, 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 100: A South Australian senior class applies the information to a water, agriculture or urban-design investigation. A tracer starts at 0.18 mol and undergoes 4 half-lives of 2 minutes each. How much remains?

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sa-sace South Australia SACE Sciences AustraliaMedium

Science task 101: A South Australian senior class applies the information to a water, agriculture or urban-design investigation. A 27 kg test trolley accelerates at 9 m/s². What net force acts on it?

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sa-sace South Australia SACE Sciences AustraliaMedium

Science task 102: A South Australian senior class applies the information to a water, agriculture or urban-design investigation. A circuit has 27 V across a 11 Ω resistor. What current flows?

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sa-sace South Australia SACE Sciences AustraliaMedium

Science task 103: A South Australian senior class applies the information to a water, agriculture or urban-design investigation. A compound has molar mass 26 g mol⁻¹. What is the mass of 11 mol?

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sa-sace South Australia SACE Sciences AustraliaMedium

Science task 104: A South Australian senior class applies the information to a water, agriculture or urban-design investigation. An enzyme extracted from bacteria is tested at 32°C. Which statement about enzyme action is correct?

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sa-sace South Australia SACE Sciences AustraliaMedium

Science task 105: A South Australian senior class applies the information to a water, agriculture or urban-design investigation. Cells from the skin 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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