Page 683 - SUBSEC October 2017_Neat

-3- 02138032/SPEC/K/MS/JUNE 2017

PHYSICS
UNIT 1 — PAPER 032
MARK SCHEME

Question 2
KC UK XS
(a) Plotting of graph:

Suitable scales (2)
Labelled axes (quantity and unit)(1)
5-6 correct points (3)
3-4 correct points (Award 2 marks only) 7
1-2 correct points (Award 1 mark only)
Best-fit line (2)
[7 marks]

(b) Calculation of gradient:
3
large gradient triangle (1)
correct read off of points (2)
correct calculated value (approx. 0.5) (1) 1

Calculation of cross-sectional area

Correct formula (1)
Calculation with units (1)

Calculation of E

Correct formula(1) 4
Calculation with units(1)
[8 marks]

Total 15 marks 5 10