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Physics Ch 12 multiple choice
Terms in this set (21)
Compared to a bar of pure gold, the density of a pure gold ring is
If a loaf of bread is compressed, its density...
When weight is applied to the top of a stone arch, all of the stone blocks in the arch undergo
The strength of a rope depends on its
An iron block is placed in a furnace where it is heated and consequently expands. In the expanded
condition, its density
A spring is stretched 10 cm by a suspended 1-kg block. If two such springs side-by-side are used to suspend the block, so each spring supports half the weight of the block, then each spring will stretch
An unstretched hanging spring is 50 cm long. Suspending a 100-N weight from it makes its length 60 cm. Adding another 100-N weight will make the spring's length
Which potatoes when peeled produce the most peelings?
10 KG of small Potatoes
Which has more skin, an elephant or a mouse?
Which has more skin compared to its body weight, an elephant or a mouse?
An elephant eats less for its size than smaller animals because
its radiating area is small compared to its volume.
Which cooks faster in boiling oil?
a sliced potato
Compared to a 50-kg person, a 100-kg person at the beach requires
less than twice as much suntan lotion.
If an elephant grows to twice its normal height, its weight will be multiplied by about
The effects of scaling are beneficial to small creatures
that fall from great heights
If you make cupcakes and bake them as directed for a cake, you will find the cupcakes
In cold weather, your hands will be warmer if you wear
In cooking a turkey in a conventional oven at a given temperature, compared to a medium-sized turkey, a large turkey takes
more time per pound to cook.
If each dimension of a steel bridge is scaled up ten times, its strength will be multiplied by about
one hundred, but its weight by one thousand.
A dome-shaped house is more heat efficient than a rectangular house because a dome has
less area compared to its volume.
Flatten a spherical meatball into a hamburger and you increase its
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