0654.B18.1.02 — Describe the flow of energy through living organisms, including light energy from the Sun and chemical energy in organisms, and its eventual: past paper questions
Real questions on 0654.b18.1.02 — describe the flow of energy through living organisms, including light energy from the sun and chemical energy in organisms, and its eventual
The newest 7 of 7 written questions. Open one to see it on the real paper.
- 0973/32 · May/June 2024 · Q6d[2]
Suggest two renewable sources of energy that the farmer uses to generate electricity for the farm.
See it on the paper → - 0973/42 · May/June 2023 · Q6a(i)[1]
State the time at which the power output of the solar panel is at its maximum. time of day
See it on the paper → - 0973/42 · May/June 2023 · Q6a(ii)[1]
Suggest one reason why the power output of the solar panel is at a maximum at this time.
See it on the paper → - 0973/42 · May/June 2023 · Q6b[2]
Table 6.1 gives some data about different types of power stations. Table 6.1 power station fuel efficiency / % output voltage / kV output power / MW P coal 30 22 1500 Q natural gas 40 31 1000 R uranium 30 23 1300 Use Table 6.1 to complete each sentence. Each letter, P, Q or R, can be used once, more than once or not at...
See it on the paper → - 0973/41 · May/June 2022 · Q5c(i)[3]
Describe the Haber process. You should include: • • the sources of nitrogen and hydrogen gas the conditions used.
See it on the paper → - 0973/31 · May/June 2021 · Q4b[1]
State the principal source of energy for all food chains.
See it on the paper → - 0973/32 · May/June 2021 · Q3c[2]
Solar energy is sometimes used to power torches. Solar energy is a renewable energy resource. State two other renewable energy resources.
See it on the paper →
What examiners said
There were many correct suggestions seen, with the best responses referring to the Sun being at an angle directly above the solar panel.
— Examiner report, May/June 2023, 0973/42 Q6(a)(ii) (Cambridge)
It appeared that some candidates thought that each letter could only be used once, leading to the incorrect inclusion of natural gas, despite the instruction that each letter could be used more than once being given in the stem.
— Examiner report, May/June 2023, 0973/42 Q6(b) (Cambridge)
This question required candidates to state the sources of hydrogen and give two conditions required for the Haber process. Most candidates were able to state all three conditions required, however, far fewer included accurate descriptions of the sources of the gases, with common incorrect responses stating that both gases are obtained from air.
— Examiner report, May/June 2022, 0973/41 Q5(c)(i) (Cambridge)
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