Physics 213
Final
July 31, 2008
Name:______________________
This is a closed book test. You may use a calculator and a selfmade handwritten (no photocopying) crib sheet
of dimensions no more than 81/2” x 11” with any information on both side. For multiple choice questions,
circle the most appropriate answer. For problems,
show all your work!!!
Partial credit will only be awarded to
problems that include the steps used in arriving at the result. Take your time but pace yourself. If you haven’t
gotten to the problems by the midpoint of the test, you should consider jumping to them and returning to the
multiple choice at the end. If a question is not clear, raise your hand, and I’ll try to clarify the question to you,
but don’t expect to get any hints. If you need more paper, I can provide you with some additional blank sheets.
Additional suggestions: If you cannot finish a problem write down what you do know and explain in words the
necessary steps. You will garner some partial credit for indicating the correct approach.
Section
Possible Points
Points Earned
Multiple Choice
60
Problem A
20
Problem B
15
Problem C
15
Problem D
20
Problem E
20
Total:
150
Physical constants
Quantity
Symbol
Value
Unit
Speed of light in vacuum
c
,
c
o
2.998
×
10
8
m/s
Permittivity of free space
ε
o
8.854
×
10
12
C
2
/Nm
2
Permeability of free space
μ
o
4
л
× 10
7
Tm/A
Coulomb’s constant (1/4
л
o
)
K
8.988
×
10
9
Nm
2
/C
2
Elementary charge
e
1.602
×
10
19
C
Electron mass
m
e
9.109
×
10
31
kg
Proton mass
m
p
1.673
×
10
27
kg
Atomic mass unit
u
1.661
×
10
27
kg
Avogadro's number
N
A
6.023
×
10
23
1/mol
Planck’s Constant
h
6.63 × 10
34
J·s
1 eV = 1.602 × 10
19
J, 1 Bq = 1 decay/s = 2.7 x 10
11
Ci
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View Full DocumentMultiple Choice Problems (3 points each)
1.
Doug rubs a piece of fur on a hard rubber rod, giving the rod a negative charge. What happens?
a. Protons are removed from the rod.
b. Electrons are added to the rod.
c. The fur is also charged negatively.
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 Summer '08
 Cao
 Physics, Magnetic Field, Electric charge, Doug, 45°

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