9702 · topic questions
Stress and strain
12 past-paper questions on Stress and strain
A section of the lightning rod of length 0.12m is removed for testing. A tensile stress of 1.9 x 10^6 Pa is applied, as shown in…
a wire is stretched within its elastic limit at constant temperature.
Determine the cross-sectional area of wire X.
Determine the cross-sectional area of the wire.
The extension of the wire is initially 2.0 × 10⁻³m. Determine the work done to increase the extension of the wire to 3.0 × 10⁻³m.
Object A is removed and replaced by a wire fixed to the end of the beam and to the ground, as shown in Fig. 2.2. After the…
the Young modulus of the material from which the sample is made.
A second sample of the same material has a larger cross-sectional area than the original sample but the same initial length. The…
Object B is now moved to a new position closer to the pivot without passing it. The beam is again horizontal and in equilibrium.…
Wire Y has a greater diameter than wire X. Explain, without calculation, whether the Young modulus of the metal from which wire Y…
Use Fig. 3.1 to determine the Young modulus for P.
The stress in the wire is 1.5 × 107 Pa. Determine the radius of the wire.
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