PractiseQuestion bank
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12 questions
SA-9702-DS1-0011 markL1 FoundationCalculatorStress & strain
A force of 200 N acts on a wire of cross-sectional area 2.5×10−6 m². Calculate the stress, in MPa. Salam Academy Original Practice · Proposed mark scheme
SA-9702-DS1-0021 markL1 FoundationCalculatorStress & strain
A wire of original length 1.5 m extends by 0.60 mm. Calculate the strain, in units of 10−4. Salam Academy Original Practice · Proposed mark scheme
SA-9702-DS1-0051 markL1 FoundationCalculatorYoung modulus
The Young modulus of a material is equal to
Salam Academy Original Practice · Proposed mark scheme
SA-9702-DS1-0071 markL1 FoundationCalculatorStress & strain
The unit of strain is
Salam Academy Original Practice · Proposed mark scheme
SA-9702-DS1-0091 markL1 FoundationCalculatorStress & strain
A force of 12 N stretches a spring by 0.040 m. Calculate its spring constant. Salam Academy Original Practice · Proposed mark scheme
SA-9702-DS1-0121 markL1 FoundationCalculatorStress & strain
Tensile stress is defined as
Salam Academy Original Practice · Proposed mark scheme
SA-9702-DS1-0032 marksL2 StandardCalculatorYoung modulus
Using a stress of 8.0×107 Pa and a strain of 4.0×10−4, calculate the Young modulus, in GPa. Salam Academy Original Practice · Proposed mark scheme
SA-9702-DS1-0042 marksL2 StandardCalculatorYoung modulus
A wire has a diameter of 0.50 mm. Calculate its cross-sectional area, in units of 10−7 m². Salam Academy Original Practice · Proposed mark scheme
SA-9702-DS1-0062 marksL2 StandardCalculatorYoung modulus
A steel wire (E=2.0×1011 Pa) is 2.0 m long with cross-sectional area 1.0×10−6 m². Calculate its extension, in mm, under a load of 100 N. Salam Academy Original Practice · Proposed mark scheme
SA-9702-DS1-0082 marksL2 StandardCalculatorYoung modulus
A wire of cross-sectional area 1.0×10−6 m² and Young modulus 2.0×1011 Pa is stretched to a strain of 1.0×10−3. Calculate the tension in it. Salam Academy Original Practice · Proposed mark scheme
SA-9702-DS1-0101 markL2 StandardCalculatorYoung modulus
In an experiment to measure the Young modulus of a metal, a long, thin wire is used because
Salam Academy Original Practice · Proposed mark scheme
SA-9702-DS1-0113 marksL3 ExamCalculatorYoung modulus
Wires A and B are made of the same metal. B is twice as long as A and has twice the diameter. The same load is hung from each. Determine the ratio extension of Aextension of B. Salam Academy Original Practice · Proposed mark scheme