Below you will find a set of 5 conceptual and numerical revision questions selected randomly from lots of questions I have put together covering the material in Chapter 12, "Static Equilibrium and Elasticity". This includes questions on center of gravity, static and rotational equilibrium, stress and strain. When you have finished the quiz, click on the "Submit Quiz" button at the bottom and within seconds it will be automatically graded and the results returned to you!

To select a new set of questions click on the "Reload" or "Refresh" button on your browser. You may find some of the questions duplicated but that's the nature of a random selection. Try it a few times ... it's not fattening and you may learn something!

Many thanks to Mark Wood for producing the quiz-maker code.

Q1: A heavy block is supported by three lines as shown below.

Which of the following statements is true?

T₁ > T₂ and T₂ > T₃
T₂ > T₁ and T₁ > T₃
T₂ > T₃ and T₃ > T₁
T₃ > T₁ and T₁ > T₂
T₁ > T₃ and T₂ > T₃

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Q2:

The horizontal boom supporting the sign is of uniform construction and weighs 50 N. If the sign weighs 150 N, what is the force exerted by the hinge on the boom?

~350 N
~304 N
~25 N
~550 N
~423 N

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Q3: The bulk modulus B has units of

pressure
force
energy
mass per unit time
mass density

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Q4: Young's modulus Y has units of

force
energy
mass density
pressure
mass per unit time

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Q5: A 500 N weight is hung from the end of a wire of cross-sectional area 0.010 cm². The wire stretches from its original length of 200.00 cm to 200.50 cm.

What is the length strain on the wire?

1.0 ¥ 10²
1.0 ¥ 10^-2
5.0 ¥ 10²
2.5 ¥ 10^-3
4.0 ¥ 10²

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