#### Transcript Document

```A new way of multiplying two vectors is
introduced in this chapter. What is it
called?
A.
B.
C.
D.
E.
Dot Product
Scalar Product
Tensor Product
Cross Product
Angular Product
A new way of multiplying two vectors is
introduced in this chapter. What is it
called?
A.
B.
C.
D.
E.
Dot Product
Scalar Product
Tensor Product
Cross Product
Angular Product
Moment of inertia is
A.
B.
C.
D.
the rotational equivalent of mass.
the point at which all forces appear to act.
the time at which inertia occurs.
an alternative term for moment arm.
Moment of inertia is
A.
B.
C.
D.
the rotational equivalent of mass.
the point at which all forces appear to act.
the time at which inertia occurs.
an alternative term for moment arm.
A rigid body is in equilibrium if
A.
B.
C. neither A nor B.
D. either A or B.
E. both A and B.
A rigid body is in equilibrium if
A.
B.
C. neither A nor B.
D. either A or B.
E. both A and B.
General Principles
General Principles
Important Concepts
Important Concepts
Important Concepts
Important Concepts
Applications
Applications
Applications
The fan blade is speeding up. What are the
signs of  and ?
A.
B.
C.
D.
ω is positive and α is positive.
ω is positive and α is negative.
ω is negative and α is positive.
ω is negative and α is negative.
The fan blade is speeding up. What are the
signs of  and ?
A.
B.
C.
D.
ω is positive and α is positive.
ω is positive and α is negative.
ω is negative and α is positive.
ω is negative and α is negative.
Four Ts are made from two identical rods of
equal mass and length. Rank in order, from
largest to smallest, the moments of inertia Ia
to Id for rotation about the dotted line.
(a)
(b)
A.
B.
C.
D.
E.
(c)
Ia > Id > Ib > Ic
Ic = Id > Ia = Ib
Ia = Ib > Ic = Id
Ia > Ib > Id > Ic
Ic > Ib > Id > Ia
(d)
Four Ts are made from two identical rods of
equal mass and length. Rank in order, from
largest to smallest, the moments of inertia Ia
to Id for rotation about the dotted line.
(a)
(b)
A.
B.
C.
D.
E.
(c)
Ia > Id > Ib > Ic
Ic = Id > Ia = Ib
Ia = Ib > Ic = Id
Ia > Ib > Id > Ic
Ic > Ib > Id > Ia
(d)
Rank in order, from largest to smallest, the
five torques τa − τe. The rods all have the
same length and are pivoted at the dot.
(a)
(b)
(c)
A.
B.
C.
D.
E.
(d)
(e)
Rank in order, from largest to smallest, the
five torques τa − τe. The rods all have the
same length and are pivoted at the dot.
(a)
(b)
(c)
A.
B.
C.
D.
E.
(d)
(e)
Rank in order, from
largest to smallest, the
angular accelerations a
to e.
A.
B.
C.
D.
E.
Rank in order, from
largest to smallest, the
angular accelerations a
to e.
A.
B.
C.
D.
E.
A student holds a meter stick straight out with one or
more masses dangling from it. Rank in order, from
most difficult to least difficult, how hard it will be for
the student to keep the meter stick from rotating.
(a)
(b)
A.
B.
C.
D.
E.
(c)
c>b>d>a
b=c=d>a
c>d>b>a
c>d>a=b
b>d>c>a
(d)
A student holds a meter stick straight out with one or
more masses dangling from it. Rank in order, from
most difficult to least difficult, how hard it will be for
the student to keep the meter stick from rotating.
(a)
(b)
A.
B.
C.
D.
E.
(c)
c>b>d>a
b=c=d>a
c>d>b>a
c>d>a=b
b>d>c>a
(d)
Two buckets spin around in a
horizontal circle on
frictionless bearings.
Suddenly, it starts to rain. As
a result,
A. The buckets speed up because the potential energy of the
rain is transformed into kinetic energy.
B. The buckets continue to rotate at constant angular velocity
because the rain is falling vertically while the buckets move
in a horizontal plane.
C. The buckets slow down because the angular momentum of
the bucket + rain system is conserved.
D. The buckets continue to rotate at constant angular velocity
because the total mechanical energy of the bucket + rain
system is conserved.
E. None of the above.
Two buckets spin around in a
horizontal circle on
frictionless bearings.
Suddenly, it starts to rain. As
a result,
A. The buckets speed up because the potential energy of the
rain is transformed into kinetic energy.
B. The buckets continue to rotate at constant angular velocity
because the rain is falling vertically while the buckets move
in a horizontal plane.
C. The buckets slow down because the angular momentum of
the bucket + rain system is conserved.
D. The buckets continue to rotate at constant angular velocity
because the total mechanical energy of the bucket + rain
system is conserved.
E. None of the above.
What is the SI unit of pressure?
A.
B.
C.
D.
E.
Pascal
Atmosphere
Bernoulli
Young
p.s.i.
What is the SI unit of pressure?
A.
B.
C.
D.
E.
Pascal
Atmosphere
Bernoulli
Young
p.s.i.
Is gauge pressure larger,
smaller, or the same as true
pressure?
A. Larger
B. Smaller
C. Same as
Is gauge pressure larger,
smaller, or the same as true
pressure?
A. Larger
B. Smaller
C. Same as
The buoyant force on an object
submerged in a liquid depends on
A.
B.
C.
D.
E.
the object’s mass.
the object’s volume.
the density of the liquid.
both A and B.
both B and C.
The buoyant force on an object
submerged in a liquid depends on
A.
B.
C.
D.
E.
the object’s mass.
the object’s volume.
the density of the liquid.
both A and B.
both B and C.
General Principles
General Principles
Important Concepts
Applications
A piece of glass is broken into
two pieces of different size.
Rank order, from largest to
smallest, the mass densities
of pieces 1, 2, and 3.
A.
B.
C.
D.
E.
F.
A piece of glass is broken into
two pieces of different size.
Rank order, from largest to
smallest, the mass densities
of pieces 1, 2, and 3.
A.
B.
C.
D.
E.
Water is slowly poured into the container until
the water level has risen into tubes A, B, and C.
The water doesn’t overflow from any of the
tubes. How do the water depths in the three
columns compare to each other?
A. dA = dC > dB
B. dA > dB > dC
C. dA = dB = dC
D. dA < dB < dC
E. dA = dC < dB
Water is slowly poured into the container until
the water level has risen into tubes A, B, and C.
The water doesn’t overflow from any of the
tubes. How do the water depths in the three
columns compare to each other?
A. dA = dC > dB
B. dA > dB > dC
C. dA = dB = dC
D. dA < dB < dC
E. dA = dC < dB
Rank in order, from largest to smallest, the magnitudes of the forces
required to balance the masses. The masses are in kilograms.
A.
B.
C.
D.
E.
F1 = F2 = F3
F3 > F2 > F1
F3 > F1 > F2
F2 > F1 > F3
F2 > F1 = F3
Rank in order, from largest to smallest, the magnitudes of the forces
required to balance the masses. The masses are in kilograms.
A.
B.
C.
D.
E.
F1 = F2 = F3
F3 > F2 > F1
F3 > F1 > F2
F2 > F1 > F3
F2 > F1 = F3
The figure shows volume
flow rates (in cm3/s) for all
but one tube. What is the
volume flow rate through
the unmarked tube? Is the
flow direction in or out?
A.
B.
C.
D.
E.
1 cm3/s, in
1 cm3/s, out
10 cm3/s, in
10 cm3/s, out
It depends on the relative size of the tubes.
The figure shows volume
flow rates (in cm3/s) for all
but one tube. What is the
volume flow rate through
the unmarked tube? Is the
flow direction in or out?
A.
B.
C.
D.
E.
1 cm3/s, in
1 cm3/s, out
10 cm3/s, in
10 cm3/s, out
It depends on the relative size of the tubes.
Rank in order, from highest to lowest, the liquid
heights h1 to h4 in tubes 1 to 4. The air flow is
from left to right.
A.
B.
C.
D.
E.
h1 > h2 = h3 = h4
h2 > h4 > h3 > h1
h2 = h3 = h4 > h1
h3 > h4 > h2 > h1
h1 > h3 > h4 > h2
Rank in order, from highest to lowest, the liquid
heights h1 to h4 in tubes 1 to 4. The air flow is
from left to right.
A.
B.
C.
D.
E.
h1 > h2 = h3 = h4
h2 > h4 > h3 > h1
h2 = h3 = h4 > h1
h3 > h4 > h2 > h1
h1 > h3 > h4 > h2
```