Question 1

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

Accepted Answer

A) ten and its weight by ten also. 
B) one hundred, and its weight by one thousand. 
C) one thousand, and its weight by one hundred thousand. 
D) none of the above 
A) ten and its weight by ten also. 
B) one hundred, and its weight by one thousand. 
C) one thousand, and its weight by one hundred thousand. 
D) none of the above

Question 2

The crystals in matter are held together by

Accepted Answer

A) cohesive forces. 
B) amorphous forces. 
C) electrical bonding forces. 
D) excess neutrons. 
A) cohesive forces. 
B) amorphous forces. 
C) electrical bonding forces. 
D) excess neutrons.

Question 3

Which potatoes when peeled produce the most peelings?

Accepted Answer

A) 10 kg of large potatoes 
B) 10 kg of small potatoes 
C) both the same 
A) 10 kg of large potatoes 
B) 10 kg of small potatoes 
C) both the same

Question 4

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

Accepted Answer

A) tension. 
B) compression. 
C) neither of these 
A) tension. 
B) compression. 
C) neither of these

Question 5

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

Accepted Answer

A) 0.1. 
B) 0.01. 
C) 0.001. 
D) 0.0001. 
E) none of the above 
A) 0.1. 
B) 0.01. 
C) 0.001. 
D) 0.0001. 
E) none of the above

Question 6

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

Accepted Answer

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

Question 7

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

Accepted Answer

A) no corners to radiate. 
B) less interior space. 
C) less area compared to its volume. 
D) all of the above 
E) none of the above 
A) no corners to radiate. 
B) less interior space. 
C) less area compared to its volume. 
D) all of the above 
E) none of the above

Question 8

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

Accepted Answer

A) halved. 
B) unchanged. 
C) doubled. 
A) halved. 
B) unchanged. 
C) doubled.

Question 9

Doubling the linear size of an object multiplies its area by

Accepted Answer

A) 2 and its volume by 4. 
B) 4 and its volume by 8. 
C) 8 and its volume by 16. 
D) none of the above 
A) 2 and its volume by 4. 
B) 4 and its volume by 8. 
C) 8 and its volume by 16. 
D) none of the above

Question 10

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

Accepted Answer

A) less. 
B) the same. 
C) more. 
A) less. 
B) the same. 
C) more.

Question 11

The first evidence confirming the crystal structure of matter was

Accepted Answer

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

Question 12

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

Accepted Answer

A) 10. 
B) 100. 
C) 1000. 
D) 10,000. 
E) none of the above 
A) 10. 
B) 100. 
C) 1000. 
D) 10,000. 
E) none of the above

Question 13

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

Accepted Answer

A) 100 kg/m3. 
B) 200 kg/m3. 
C) 500 kg/m3. 
D) 1000 kg/m3. 
E) none of the above 
A) 100 kg/m3. 
B) 200 kg/m3. 
C) 500 kg/m3. 
D) 1000 kg/m3. 
E) none of the above

Question 14

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

Accepted Answer

A) 10 cm3. 
B) 100 cm3. 
C) 1000 cm3. 
D) none of the above 
A) 10 cm3. 
B) 100 cm3. 
C) 1000 cm3. 
D) none of the above

Question 15

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

Accepted Answer

A) less chocolate. 
B) the same amount of chocolate. 
C) more chocolate. 
D) makes no difference 
A) less chocolate. 
B) the same amount of chocolate. 
C) more chocolate. 
D) makes no difference

Question 16

Which potato cooks faster in boiling oil?

Accepted Answer

A) a whole potato. 
B) a sliced potato. 
C) both the same 
A) a whole potato. 
B) a sliced potato. 
C) both the same

Question 17

A catenary in nature is evident in

Accepted Answer

A) eggs. 
B) a necklace drooping between your fingers. 
C) the domes of some modern buildings. 
D) all of the above 
A) eggs. 
B) a necklace drooping between your fingers. 
C) the domes of some modern buildings. 
D) all of the above

Question 18

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

Accepted Answer

A) 60 cm. 
B) 70 cm. 
C) 80 cm. 
D) 100 cm. 
E) 120 cm. 
A) 60 cm. 
B) 70 cm. 
C) 80 cm. 
D) 100 cm. 
E) 120 cm.

Question 19

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

Accepted Answer

A) upper flange. 
B) lower flange. 
C) web. 
D) all the same 
A) upper flange. 
B) lower flange. 
C) web. 
D) all the same

Question 20

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

Accepted Answer

A) 5 cm. 
B) 10 cm. 
C) 20 cm. 
D) 30 cm. 
E) none of the above 
A) 5 cm. 
B) 10 cm. 
C) 20 cm. 
D) 30 cm. 
E) none of the above

Exam 12: Solids

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

The crystals in matter are held together by

Which potatoes when peeled produce the most peelings?

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

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

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

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

Doubling the linear size of an object multiplies its area by

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

The first evidence confirming the crystal structure of matter was

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

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

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

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

Which potato cooks faster in boiling oil?

A catenary in nature is evident in

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

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

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

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