Physics Unit 1a Revision (higher tier)
Biggest energy/cash saving Cost effective any 2 for 1 mark each . 3 (ii) Double glazing. gains. 1 mark Costs most Saves least energy Least cost effective any 2 for 1 mark each . 3 [9] Sample question 9 (a) 1. 1 (b) 3 . and . 4 or 1 . and . 2. 1 ................
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