Oregon State University
PH 202
Winter Term 2012
Midterm Exam 1
(Wednesday, January 25, 7:00 p.m.)
GENERAL DIRECTIONS:
Fill out the cover sheet completely
, as indicated—including your test form letter, which is E.
Follow the specific directions on each page of the answer form
.
Use standard SI units unless directed otherwise; use three significant digits in all
final numerical answers.
Questions #14 are worth 8 points each; #57 are worth 10 points each; #89 are worth 12 points; #10 is worth 14 points.
Physical constants and other possibly useful information
V
sphere
= (4/3)
p
r
3
V
cylinder
=
p
r
2
h
V
cube
=
s
3
g
=
9.80 m/s
2
1 atm =
1.01 x 10
5
Pa
r
water
=
1000 kg/m
3
r
Hg
=
13,600 kg/m
3
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1.
Which statement is false?
(A)
A manometer can indicate negative gauge pressure.
(B)
If a barometer is 2 m tall, its fluid must have a density less than water.
(C)
Gauge pressure is never more than absolute pressure.
(D)
All of the above.
(E)
A and B only.
(F)
A and C only.
(G)
B and C only.
(H)
None of the above.
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2.
Which statement is true?
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3.
Three blocks are placed in a tub
with water (see bottom of page).
The blocks have volumes
V
1
,
V
2
and
V
3
.
Only blocks 1 and 2 float,
and
V
1
<
V
2
<
V
3
.
Which is false?
(E)
A and B only.
(F)
A and C only.
(G)
B and C only.
(H)
None of the above.
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 Winter '08
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 Physics, Fluid Dynamics

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