MCQ Collection

Australia MCQs

Practice Australia questions with answers and explanations.

act-ssc ACT Senior Secondary Certificate Sciences AustraliaMedium

Science task 109: An ACT senior class applies the information to a public-policy, planning or research investigation. In genetic cross 49, two heterozygotes Aa are crossed under complete dominance. What is the probability of a dominant phenotype?

Choose an option to check your answer.

act-ssc ACT Senior Secondary Certificate Sciences AustraliaHard

Science task 110: An ACT senior class applies the information to a public-policy, planning or research investigation. A tracer starts at 0.10 mol and undergoes 2 half-lives of 8 minutes each. How much remains?

Choose an option to check your answer.

act-ssc ACT Senior Secondary Certificate Sciences AustraliaMedium

Science task 111: An ACT senior class applies the information to a public-policy, planning or research investigation. A 6 kg test trolley accelerates at 7 m/s². What net force acts on it?

Choose an option to check your answer.

act-ssc ACT Senior Secondary Certificate Sciences AustraliaMedium

Science task 104: An ACT senior class applies the information to a public-policy, planning or research investigation. An enzyme extracted from bacteria is tested at 28°C. Which statement about enzyme action is correct?

Choose an option to check your answer.

act-ssc ACT Senior Secondary Certificate Sciences AustraliaMedium

Science task 105: An ACT senior class applies the information to a public-policy, planning or research investigation. Cells from the skin of a growing organism undergo mitosis. What is the usual outcome?

Choose an option to check your answer.

act-ssc ACT Senior Secondary Certificate Sciences AustraliaMedium

Science task 96: An ACT senior class applies the information to a public-policy, planning or research investigation. A solution has pH 8. What is its hydrogen-ion concentration?

Choose an option to check your answer.

act-ssc ACT Senior Secondary Certificate Sciences AustraliaMedium

Science task 97: An ACT senior class applies the information to a public-policy, planning or research investigation. A device transfers 359 J in 19 s. What is its average power?

Choose an option to check your answer.

act-ssc ACT Senior Secondary Certificate Sciences AustraliaMedium

Science task 98: An ACT senior class applies the information to a public-policy, planning or research investigation. In experiment 38, temperature is varied while growth of fruit flies is measured. Why include an untreated control?

Choose an option to check your answer.

act-ssc ACT Senior Secondary Certificate Sciences AustraliaMedium

Science task 99: An ACT senior class applies the information to a public-policy, planning or research 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.

act-ssc ACT Senior Secondary Certificate Sciences AustraliaHard

Science task 100: An ACT senior class applies the information to a public-policy, planning or research investigation. A tracer starts at 0.26 mol and undergoes 4 half-lives of 5 minutes each. How much remains?

Choose an option to check your answer.

act-ssc ACT Senior Secondary Certificate Sciences AustraliaMedium

Science task 101: An ACT senior class applies the information to a public-policy, planning or research investigation. A 25 kg test trolley accelerates at 14 m/s². What net force acts on it?

Choose an option to check your answer.

act-ssc ACT Senior Secondary Certificate Sciences AustraliaMedium

Science task 102: An ACT senior class applies the information to a public-policy, planning or research investigation. A circuit has 32 V across a 2 Ω resistor. What current flows?

Choose an option to check your answer.