Materials Random Retrieval

1

Materials Random Retrieval

This quiz contains all the questions in the Materials section. The website will pick 10 questions at random.

1 / 10

Which material is the densest?

2 / 10

The Young's Modulus for a single walled carbon fibre nanotubes of diameter 4 nm is 1000 GPa. If it is placed under 75% strain, what force is required to break it?

3 / 10

A 500 mm material undergoes a strain of -3.2%, when measured what is the materials length?

4 / 10

Which material on the graph above is the stiffest?

5 / 10

Which material on the graph above is the weakest?

6 / 10

A wire of 1.2 m extends a 3 mm when a load of 20 N is applied to it. Calculate it's strain.

7 / 10

What is another term for tensile deformation?

8 / 10

Two nichrome wires, A and B, have a load of 30 N placed on them each. The original lengths of the wires are 3 m and 2 m. Each wire shows the same extension. Find the ratio of Ak to Bk.

9 / 10

Estimate k from the graph shown above.

10 / 10

Under a 4 N force, two identical springs, in parallel, stretch 130 mm. Calculate the spring constant for one of the springs.

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