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Exam 12: Solids

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Question 21

Multiple Choice

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A beam is under stress when it carries a load. The part of a beam where no tension or compression occurs is the

A) upper or lower flange.
B) neutral layer.
C) neither of these

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Question 22

Multiple Choice

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The first evidence confirming the crystal structure of matter was

A) the citing of experiments by Nobel Prize-winning scientists.
B) testimonials by crystal-loving investigators.
C) X-ray diffraction patterns.

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Question 23

Multiple Choice

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A 1-centimeter cubed sugar cube scaled up by a factor of 10 has a volume of

Which potato cooks faster in boiling oil?

Suppose you put a chocolate layer on pieces of candy. Compared with the amount of chocolate used to cover 1 pound of large pieces, if you cover 1 pound of smaller pieces you'll use

A dome-shaped house is more heat efficient than a rectangular house because a dome has

If a pencil's length and diameter are both multiplied by 10, then its volume is multiplied by

Which potatoes when peeled produce the most peelings?

The density of a 2-cubic meter block of mass of 1000 kg is

A catenary in nature is evident in

You wish to drill a hole through a horizontal I-beam supporting a bridge. To weaken the beam the least drill the hole through the

An un-stretched hanging spring is 50 cm long. Suspending a 100-N block from it increases its length to 60 cm. Adding another 100-N block makes the spring's length

The crystals in matter are held together by

If each dimension of a steel bridge is scaled up ten times, its strength will be multiplied by about

A weightless spring is stretched 10 cm by a suspended 1-kg block. If two such springs are used to suspend the block, one spring above the other, to effectively provide one double-length spring, then the total stretch of the double-length spring will be

A horizontal wooden beam sags a bit when supported at its ends. In between the top and bottom surfaces is a region of

If a fictional shrinking man shrinks proportionately to 1/10 his original height, his weight will be multiplied by

Doubling the linear size of an object multiplies its area by

When a chocolate bar is cut in half, its density is

An iron block in a furnace is heated and consequently expands, which means that its density is