MCQ Collection

sa-sace MCQs

Practice sa-sace questions with answers and explanations.

sa-sace South Australia SACE Sciences AustraliaMedium

Science task 112: A South Australian senior class applies the information to a water, agriculture or urban-design investigation. A circuit has 37 V across a 2 Ω resistor. What current flows?

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sa-sace South Australia SACE Sciences AustraliaMedium

Science task 113: 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 9 mol?

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sa-sace South Australia SACE Sciences AustraliaMedium

Science task 114: A South Australian senior class applies the information to a water, agriculture or urban-design investigation. An enzyme extracted from pea seedlings is tested at 20°C. Which statement about enzyme action is correct?

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sa-sace South Australia SACE Sciences AustraliaMedium

Science task 115: 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 116: A South Australian senior class applies the information to a water, agriculture or urban-design investigation. A solution has pH 4. What is its hydrogen-ion concentration?

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sa-sace South Australia SACE Sciences AustraliaMedium

Science task 117: A South Australian senior class applies the information to a water, agriculture or urban-design investigation. A device transfers 119 J in 7 s. What is its average power?

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sa-sace South Australia SACE Sciences AustraliaMedium

Science task 118: A South Australian senior class applies the information to a water, agriculture or urban-design investigation. In experiment 58, temperature is varied while growth of bacteria is measured. Why include an untreated control?

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sa-sace South Australia SACE Sciences AustraliaMedium

Science task 119: A South Australian senior class applies the information to a water, agriculture or urban-design investigation. In genetic cross 59, 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 120: A South Australian senior class applies the information to a water, agriculture or urban-design investigation. A tracer starts at 0.22 mol and undergoes 4 half-lives of 8 minutes each. How much remains?

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sa-sace South Australia SACE Sciences AustraliaMedium

Science task 111: A South Australian senior class applies the information to a water, agriculture or urban-design investigation. A 8 kg test trolley accelerates at 2 m/s². What net force acts on it?

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sa-sace South Australia SACE Sciences AustraliaMedium

Science task 106: A South Australian senior class applies the information to a water, agriculture or urban-design investigation. A solution has pH 2. What is its hydrogen-ion concentration?

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sa-sace South Australia SACE Sciences AustraliaMedium

Science task 107: A South Australian senior class applies the information to a water, agriculture or urban-design investigation. A device transfers 539 J in 28 s. What is its average power?

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