MCQ Collection

Australia MCQs

Practice Australia questions with answers and explanations.

wa-wace Western Australia WACE Sciences AustraliaMedium

Science task 108: A Western Australian senior class applies the information to a resources, distance or environmental investigation. In experiment 48, pH is varied while growth of mice is measured. Why include an untreated control?

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wa-wace Western Australia WACE Sciences AustraliaMedium

Science task 109: A Western Australian senior class applies the information to a resources, distance or environmental 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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wa-wace Western Australia WACE Sciences AustraliaHard

Science task 110: A Western Australian senior class applies the information to a resources, distance or environmental investigation. A tracer starts at 0.22 mol and undergoes 2 half-lives of 4 minutes each. How much remains?

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wa-wace Western Australia WACE Sciences AustraliaMedium

Science task 104: A Western Australian senior class applies the information to a resources, distance or environmental investigation. An enzyme extracted from bacteria is tested at 20°C. Which statement about enzyme action is correct?

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wa-wace Western Australia WACE Sciences AustraliaMedium

Science task 105: A Western Australian senior class applies the information to a resources, distance or environmental investigation. Cells from the skin of a growing organism undergo mitosis. What is the usual outcome?

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wa-wace Western Australia WACE Sciences AustraliaMedium

Science task 98: A Western Australian senior class applies the information to a resources, distance or environmental investigation. In experiment 38, temperature is varied while growth of fruit flies is measured. Why include an untreated control?

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wa-wace Western Australia WACE Sciences AustraliaMedium

Science task 99: A Western Australian senior class applies the information to a resources, distance or environmental investigation. In genetic cross 39, two heterozygotes Aa are crossed under complete dominance. What is the probability of a dominant phenotype?

Choose an option to check your answer.

wa-wace Western Australia WACE Sciences AustraliaHard

Science task 100: A Western Australian senior class applies the information to a resources, distance or environmental investigation. A tracer starts at 0.20 mol and undergoes 4 half-lives of 8 minutes each. How much remains?

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wa-wace Western Australia WACE Sciences AustraliaMedium

Science task 101: A Western Australian senior class applies the information to a resources, distance or environmental investigation. A 12 kg test trolley accelerates at 6 m/s². What net force acts on it?

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wa-wace Western Australia WACE Sciences AustraliaMedium

Science task 102: A Western Australian senior class applies the information to a resources, distance or environmental investigation. A circuit has 40 V across a 4 Ω resistor. What current flows?

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wa-wace Western Australia WACE Sciences AustraliaMedium

Science task 103: A Western Australian senior class applies the information to a resources, distance or environmental investigation. A compound has molar mass 26 g mol⁻¹. What is the mass of 3 mol?

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wa-wace Western Australia WACE Sciences AustraliaMedium

Science task 89: A Western Australian senior class applies the information to a resources, distance or environmental investigation. In genetic cross 29, two heterozygotes Aa are crossed under complete dominance. What is the probability of a dominant phenotype?

Choose an option to check your answer.