beldorin (sb37529) – Homework 1 Basics – Catala – (20104)
1
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printout
should
have
24
questions.
Multiplechoice questions may continue on
the next column or page – find all choices
before answering.
001
10.0 points
One cubic centimeter
(
1
.
0 cm
3
)
of water has
a mass of 0
.
001 kg at 25
◦
C.
Find the mass of 8
.
7 m
3
of water at 25
◦
C.
Answer in units of kg.
002
10.0 points
The uranium atom is the heaviest among the
naturally occurring elements.
Why then, isn’t a solid bar of uranium the
densest metal?
1.
A solid uranium bar contains a lot of
oxygen.
2.
The uranium atoms lose most of their
neutrons when forming a solid bar.
3.
Density is determined by the spacing be
tween the atoms as well as mass.
4.
There are a lot of dangling bonds inside a
solid bar of uranium.
003
10.0 points
Use the definition of the derivative to find
f
′
(
x
) for
f
(
x
) = 2
x
2
+
x

1
1.
Does not exist
2.
2
x
+ 1
3.
2
x

2
4.
2
x
+ 2
5.
4
x

1
6.
2
x

1
7.
None of these
8.
4
x
+ 1
004
(part 1 of 7) 10.0 points
Express 2
.
8 dm in millimeters.
Answer in units of mm.
005
(part 2 of 7) 10.0 points
Express 5 h 40 min in seconds.
Answer in units of s.
006
(part 3 of 7) 10.0 points
Express 12 g in micrograms.
Answer in units of
μ
g.
007
(part 4 of 7) 10.0 points
Express 0
.
61 km in centimeters.
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 Fall '10
 CATALA
 Physics, Work, Uranium, µm, 1 MI, 5.9 cm

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