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OCR Physics A Vector Exercise (LQ) With Mark Scheme, Exercises of Physics

Physics

OCR Physics A Vector Exercise (LQ) With Mark Scheme

Typology: Exercises

2022/2023

Available from 06/03/2023

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cashare-dse 🇬🇧

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AS Vectors Mark Scheme
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AS Vectors Mark Scheme

AS Vectors mark scheme 1. {a)(i)_ scalar named Bi has (only) magnitude / size / value (not quantity) Bi (il) vector named Bi has magnitude and direction BI allow one out of two for a vector has direction and a scalar does not (b)(i) speed = distance / time or distance = speed x time ci distance = 25x7.6 = 190 (m) Al (ii) displacement shown as a straight line from A and B B1 (lil) velocity is a vector or has a direction / speed is a scalar or does not have a direction B1 direction of (the velocity) changes / car changes direction Bi {iv) triangle showing correct orientation of the vectors Bi Vp — Va = [(25)* + (25)'J"* scale given for triangle C1 = 35.4(ms") / 34 to 37 (ms") if clearly a scale diagram A2 penalise (-1) for any further subtraction of this value (e.g. 35 — 25) {v) acceleration is a change in velocity / car has a change of velocity / car has a change in direction Bi car is accelerating B1 TOTAL [15]