AO / Question Answers Extra information Marks Spec ref. 01.1 0.72 + 0.28 + 0.4 + 0.4 = 1.8 Accept 2/5 or 40%. 1 AO2 1 WS 3.3 0.4 1 01.2 Any one from: 1 AO1 nuclear weapon testing P4.3.1 nuclear power (stations) nuclear accidents medical uses. 2 1 AO2 01.3 WS 3.3 01.4 No, with a reasonable explanation: No mark is awarded for 2 AO3 circling yes or no but only going for two weeks WS 3.5 explanation must be so total exposure well under relevant for circles answer. lowest limit for causing cancer OR Yes, with a reasonable explanation: all levels of radiation are (potentially) hazardous and harm caused by lower doses may not have been recorded 01.5 0.026 1 AO1 WS 3.3 02.1 1 mark for each label. 2 AO1 Accept negative particle for P4.1.3 electron. Do not accept proton. Same number of protons 1 AO1 02.2 different number of neutrons. 1 P4.2.1 03 Accept with no working 1 AO2 for 2 marks. P4.2.3 1 AO / Question Answers information Marks Spec ref.
Question Answers Extra information Marks AO / Spec ref. 01.1 0.72 + 0.28 + 0.4 + 0.4 = 1.8 0.4 Accept 2/5 or 40%. 1 1 1 AO2 WS 3.3 01.2 Any one from: nuclear weapon testing nuclear power (stations) nuclear accidents medical uses. 1 AO1 P4.3.1 01.3 2 1 AO2 WS 3.3 01.4 No, with a reasonable explanation: only going for two weeks so total exposure well under lowest limit for causing cancer OR Yes, with a reasonable explanation: all levels of radiation are (potentially) hazardous and harm caused by lower doses may not have been recorded No mark is awarded for circling yes or no but explanation must be relevant for circles answer. 2 AO3 WS 3.5 01.5 0.026 1 AO1 WS 3.3 02.1 1 mark for each label. Accept negative particle for electron. Do not accept proton. 2 AO1 P4.1.3 02.2 Same number of protons different number of neutrons. 1 1 AO1 P4.2.1 03 Accept with no working for 2 marks. 1 1 AO2 P4.2.3 Question Answers information Marks AO / Spec ref.
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