This figure is a simplified model of a carbon fibre inside a fishing rod. Long aligned layers of carbon atoms give the rod a low mass but high strength. A s...
Question 1 Report
This figure is a simplified model of a carbon fibre inside a fishing rod. Long aligned layers of carbon atoms give the rod a low mass but high strength. A student bends samples of carbon fibre and aluminium with the same dimensions.
(a) Name the element in carbon fibre. [1]
(b) Give one reason why a low-mass fishing rod is useful. [1]
(c) Suggest why carbon fibre is strong along its length. [2]
(d) Use the term covalent to describe bonding in the fibre. [2]
Answer Details
(a) carbon [1] (b) easier to carry/use / less tiring [1] (c) carbon atoms are arranged in long aligned layers/fibres [1]; strong bonds resist pulling along the fibre [1] (d) atoms share electrons [1]; strong covalent bonds join carbon atoms [1]
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