PH 2223 01
Test IA
February 4, 2003
Name:________________________________________Column:____________________
Instructions: Read carefully.
On this page darken the letter of the best answer like this [
±
].
Each question is worth 6 points. Show your work in a neat and orderly fashion on your scratch
paper to have a chance for partial credit. On the questions on pages 2 and 3 show your work very
neatly in the space provided.
Here are some
information
that you may or may not need:
eo
o
G = 6.672×10
N m / kg ,
k = 1 / 4
B
,
=
8.988×10 N m / C ,
,
= 8.854×10
C / N

11
2
2
9
2
2

12
2
m
2
ep
e = 1.602×10
C,
m = 9.109×10
kg,
m = 1.673×10
kg,

19

31

27
E
1.
When tragedy struck the space shuttle Columbia it was at an altitude of about 0.01 R , where
E
R is the radius of Earth. About what percentage of its value at the Earth’s surface was the force
of Earth’s gravity on the shuttle at the time of the catastrophe?
[a] 0 [b] 1 [c] 15 [d] 50 [e] 75 [f] 90 [g] 95 [h] 98 [i] 99 [j] 100
2.
At a place where a 3.0 kg particle experiences a gravitational force of 30 N what is the
gravitational field? Carefully note the units on the answers.
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 Spring '08
 Ferguson
 Work, Benjamin Franklin, Electric charge

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