MCQ Collection

Queensland QCE Sciences MCQs

Practice Queensland QCE Sciences questions with answers and explanations.

qld-qce Queensland QCE Sciences AustraliaHard

Science task 110: A Queensland senior class applies the information to a reef, climate or regional-services investigation. A tracer starts at 0.18 mol and undergoes 2 half-lives of 6 minutes each. How much remains?

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qld-qce Queensland QCE Sciences AustraliaMedium

Science task 106: A Queensland senior class applies the information to a reef, climate or regional-services investigation. A solution has pH 2. What is its hydrogen-ion concentration?

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qld-qce Queensland QCE Sciences AustraliaMedium

Science task 107: A Queensland senior class applies the information to a reef, climate or regional-services investigation. A device transfers 239 J in 20 s. What is its average power?

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qld-qce Queensland QCE Sciences AustraliaHard

Science task 100: A Queensland senior class applies the information to a reef, climate or regional-services investigation. A tracer starts at 0.16 mol and undergoes 4 half-lives of 3 minutes each. How much remains?

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qld-qce Queensland QCE Sciences AustraliaMedium

Science task 101: A Queensland senior class applies the information to a reef, climate or regional-services investigation. A 13 kg test trolley accelerates at 12 m/s². What net force acts on it?

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qld-qce Queensland QCE Sciences AustraliaMedium

Science task 102: A Queensland senior class applies the information to a reef, climate or regional-services investigation. A circuit has 14 V across a 18 Ω resistor. What current flows?

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qld-qce Queensland QCE Sciences AustraliaMedium

Science task 103: A Queensland senior class applies the information to a reef, climate or regional-services investigation. A compound has molar mass 26 g mol⁻¹. What is the mass of 7 mol?

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qld-qce Queensland QCE Sciences AustraliaMedium

Science task 104: A Queensland senior class applies the information to a reef, climate or regional-services investigation. An enzyme extracted from bacteria is tested at 22°C. Which statement about enzyme action is correct?

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qld-qce Queensland QCE Sciences AustraliaMedium

Science task 105: A Queensland senior class applies the information to a reef, climate or regional-services investigation. Cells from the skin of a growing organism undergo mitosis. What is the usual outcome?

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qld-qce Queensland QCE Sciences AustraliaMedium

Science task 92: A Queensland senior class applies the information to a reef, climate or regional-services investigation. A circuit has 51 V across a 8 Ω resistor. What current flows?

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qld-qce Queensland QCE Sciences AustraliaMedium

Science task 93: A Queensland senior class applies the information to a reef, climate or regional-services investigation. A compound has molar mass 26 g mol⁻¹. What is the mass of 9 mol?

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qld-qce Queensland QCE Sciences AustraliaMedium

Science task 94: A Queensland senior class applies the information to a reef, climate or regional-services investigation. An enzyme extracted from mice is tested at 34°C. Which statement about enzyme action is correct?

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