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

When the temperature increases, what is the effect on fluids' viscosities?

2 / 10

A steel ball bearing is dropped into a fluid and travels 60 cm in 2.53 s. The diameter of the ball bearing is 6 mm and its mass 15.3 g. Calculate the viscosity of the fluid. g=9.81 Nkg-1

3 / 10

Which material is the densest?

4 / 10

When investigating Young's modulus, why should you use a long wire?

5 / 10

What is the units for Young's modulus in terms of SI units?

6 / 10

Which material on the graph above is the strongest?

7 / 10

A wire has a diameter of d and a when a force of F is applied, it breaks at σ. What would the value of σ be if the diameter was halved?

8 / 10

What is another term for tensile deformation?

9 / 10

At which point on the graph shown above is the elastic limit?

10 / 10

A spring extends by 12 cm when a mass of 87 g is attached to it. Calculate the spring constant. g = 9.81 ms-2

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