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Why is glass suitable for windows despite being brittle?
A
Clay ceramics are strong when compressed but weak when stretched, with a tensile strength often below 10 MPa\boxed{10\,\text{MPa}}10MPa.
B
Steel has a density of about 7800 kg/m3\boxed{7800\,\text{kg/m}^3}7800kg/m3, while poly(ethene) has a density of about 950 kg/m3950\,\text{kg/m}^3950kg/m3.
C
It is transparent and hard to scratch.
D
They are often expensive to make and hard to recycle.
Card 1 of 20
6.1.7 Comparing and selecting materials Flashcards
20 flashcards on OCR GCSE Chemistry 6.1.7 Comparing and selecting materials: the key terms, definitions and equations you need to recall for Paper 1 and Paper 2 (Foundation Tier) or Paper 3 and Paper 4 (Higher Tier).