A-LevelPhysicsDeformation of solidsOct/Nov 2010Paper 1 Q221 Mark
To determine the mass of food in a pan, a scale is used that has high sensitivity for small masses but low sensitivity for large masses. To do this, two springs are used, each with a different spring constant k. One of the springs has a low spring constant and the other has a high spring constant. Which arrangement of springs would be suitable?
AArrangement with a low k spring at the top, connected in series with a high k spring (the high k spring is inside a rigid box and engages for larger loads).
BArrangement with a low k spring at the top, connected in series with a high k spring (the high k spring is inside a rigid box and engages for larger loads).
CArrangement with a high k spring at the top, connected in series with a low k spring (the low k spring is inside a rigid box and engages for larger loads).
DArrangement with a low k spring and a high k spring connected in parallel.
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The correct answer is A. This question tests the candidate's understanding of deformation of solids within the Physicssyllabus. The examiner's mark scheme requires...
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