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Question 8

A robotic actuator uses a high-tensile alloy tendon P of length LLL and circular cross-section of diameter ddd. Under a design tension TTT, tendon P undergoes an elastic extension eee.

Another tendon Q, manufactured from the same alloy, is subjected to the same tension TTT.

Which combination of length and diameter for tendon Q will result in an elastic extension of 0.75e0.75e0.75e?

A

Length of Q: 3L3L3L, Diameter of Q: 2d2d2d

B

Length of Q: 1.5L1.5L1.5L, Diameter of Q: 2d2d2d

C

Length of Q: 3L3L3L, Diameter of Q: 4d4d4d

D

Length of Q: 6L6L6L, Diameter of Q: 2d2d2d

Markscheme

Materials Questions

  1. A Level
  2. /Physics
  3. /Materials

20 exam-style questions on AQA A Level Physics Materials, covering Bulk properties of solids and The Young modulus. Each one has a worked solution and a mark scheme showing where the marks go.

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