Zscjznbvhzbx

Zscjznbvhzbx

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Mark scheme January 2004

GCE
Physics B

Unit PHB3

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Mark Scheme

Advanced – Physics B

Marking Scheme
NOTES FOR GUIDANCE
Letters are used to distinguish between different types of marks in the scheme. M indicates OBLIGATORY METHOD MARK This is usually awarded for the physical principles involved, or for a particular point in the argument or definition. It is followed by one or more accuracy marks which cannot be scored unless the M mark has already been scored. C indicates COMPENSATION METHOD MARK This is awarded for the correct method or physical principle. In this case the method can be seen or implied by a correct answer or other correct subsequent steps. In this way an answer might score full marks even if some working has been omitted. A indicates ACCURACY MARK These marks are awarded for correct calculation or further detail. They follow an M mark or a C mark. B indicates INDEPENDENT MARK This is a mark which is independent of M and C marks. Note: Where a correct answer only (c.a.o.) is required, this means that the answer must be as in the Marking Scheme, including significant figures and units. Where an error carried forward (e.c.f.) is allowed by the Marking Scheme for an incorrect answer, e.c.f. must be written on the script if an error has been carried forward.

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3

Physics B - Advanced

Mark Scheme

Instructions to Examiners 1 Give due credit to alternative treatments which are correct. Give marks for what is correct; do not deduct marks because the attempt falls short of some ideal answer. Where marks are to be deducted for particular errors specific...