MCQ Collection

Western Australia WACE Sciences MCQs

Practice Western Australia WACE Sciences questions with answers and explanations.

wa-wace Western Australia WACE Sciences AustraliaMedium

Science task 74: A Western Australian senior class applies the information to a resources, distance or environmental investigation. An enzyme extracted from pea seedlings is tested at 34°C. Which statement about enzyme action is correct?

Choose an option to check your answer.

wa-wace Western Australia WACE Sciences AustraliaMedium

Science task 75: A Western Australian senior class applies the information to a resources, distance or environmental investigation. Cells from the bone marrow of a growing organism undergo mitosis. What is the usual outcome?

Choose an option to check your answer.

wa-wace Western Australia WACE Sciences AustraliaMedium

Science task 67: A Western Australian senior class applies the information to a resources, distance or environmental investigation. A device transfers 269 J in 27 s. What is its average power?

Choose an option to check your answer.

wa-wace Western Australia WACE Sciences AustraliaMedium

Science task 68: A Western Australian senior class applies the information to a resources, distance or environmental investigation. In experiment 8, pH is varied while growth of mice is measured. Why include an untreated control?

Choose an option to check your answer.

wa-wace Western Australia WACE Sciences AustraliaMedium

Science task 69: A Western Australian senior class applies the information to a resources, distance or environmental investigation. In genetic cross 9, 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 70: A Western Australian senior class applies the information to a resources, distance or environmental investigation. A tracer starts at 0.14 mol and undergoes 2 half-lives of 6 minutes each. How much remains?

Choose an option to check your answer.

wa-wace Western Australia WACE Sciences AustraliaMedium

Science task 61: A Western Australian senior class applies the information to a resources, distance or environmental investigation. A 30 kg test trolley accelerates at 17 m/s². What net force acts on it?

Choose an option to check your answer.

wa-wace Western Australia WACE Sciences AustraliaMedium

Science task 62: A Western Australian senior class applies the information to a resources, distance or environmental investigation. A circuit has 47 V across a 2 Ω resistor. What current flows?

Choose an option to check your answer.

wa-wace Western Australia WACE Sciences AustraliaMedium

Science task 63: 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 11 mol?

Choose an option to check your answer.

wa-wace Western Australia WACE Sciences AustraliaMedium

Science task 64: A Western Australian senior class applies the information to a resources, distance or environmental investigation. An enzyme extracted from bacteria is tested at 24°C. Which statement about enzyme action is correct?

Choose an option to check your answer.

wa-wace Western Australia WACE Sciences AustraliaMedium

Science task 65: 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?

Choose an option to check your answer.

wa-wace Western Australia WACE Sciences AustraliaMedium

Science task 66: A Western Australian senior class applies the information to a resources, distance or environmental investigation. A solution has pH 2. What is its hydrogen-ion concentration?

Choose an option to check your answer.