Phys102
Q1:
Ans:
Term: 131
Online HW-Ch24-Lec02
A total charge of 7 x 10-8 C is uniformly distributed throughout a non-conducting
sphere with a radius of 5 cm. The electric potential at the surface, relative to the
potential far away, is about:
A. 1.3 104
Phys102
Term: 131
Online HW-Ch29-Lec01
Q1:
Four long straight wires carry equal currents into the page as shown. The magnetic
force on wire F is:
A.
B.
C.
D.
E.
north
east
south
west
zero
Ans:
B
Q2:
Shows three parallel wires separated by a distance d = 0
Phys102
Term: 131
Online HW-Ch20-Lec01
Q1:
The change in entropy is zero for:
A.
B.
C.
D.
E.
reversible adiabatic processes
reversible isothermal processes
reversible processes during which no work is done
reversible isobaric processes
all adiabatic proce
Phys102
Term: 131
Online HW-Ch29-Lec02
Q1:
The magnetic field B inside a long ideal solenoid is independent of :
A.
B.
C.
D.
E.
current
the core material
the spacing of the windings
the cross-sectional area of the solenoid
the direction of the current
Ans
Phys102
Term: 131
Online HW-Ch30-Lec02
Q1:
The figure shows a bar moving to the right on two conducting rails. To make an
induced current i in the direction indicated, a constant magnetic field in region A
should be in what direction?
A.
B.
C.
D.
E.
Right
Phys102
Term: 131
Online HW-Ch23-Lec03
Q1:
Which of the following graphs represents the magnitude of the electric field as a
function of the distance from the center of a solid charged conducing sphere of radius
R?
Ans:
E
Q2:
A proton is shot directly tow
Phys102
Q1:
Term: 131
Online HW-Ch20-Lec03
A heat engine absorbs energy of magnitude |QH | as heat from a high
temperature reservoir, does work of magnitude |W|, and transfers energy of
magnitude |QL | as heat to a low temperature reservoir. Its efficienc
Phys102
Term: 131
Online HW-Ch19-Lec02
Q1:
The temperature of a gas is most closely related to:
A.
B.
C.
D.
E.
the kinetic energy of translation of its molecules
its total molecular kinetic energy
the sizes of its molecules
the potential energy of its mol
Phys102
Term: 131
Online HW-Ch30-Lec01
Q1:
Faradays law states that an induced emf is proportional to:
A.
B.
C.
D.
E.
the rate of change of the magnetic field
the rate of change of the electric field
the rate of change of the magnetic flux
the rate of cha
Phys102
Q1:
Term: 131
Online HW-Ch27-Lec02
A battery has an emf of 9 V and an internal resistance of 2. If the potential
difference across its terminals is greater than 9 V:
A.
B.
C.
D.
E.
it must be connected across a large external resistance
it must be
Phys102
Term: 131
Online HW-Ch28-Lec03
Q1:
A square loop of wire lies in the plane of the page and carries a current I as shown.
There is a uniform magnetic field B parallel to the side MK as indicated. The loop
will tend to rotate:
A. about PQ with KL co
Phys102
Term: 131
Online HW-Ch18-Lec04
Q1:
The rate of heat flow by conduction through a slab is P cond . If the slab thickness is
doubled, its cross-sectional area is halved, and the temperature difference across it is
doubled, then the rate of heat flow
Phys102
Term: 131
Online HW-Ch26-Lec01
Q1:
Two wires made of different materials have the same uniform current density. They
carry the same current only if:
A.
B.
C.
D.
E.
their lengths are the same
their cross-sectional areas are the same
both their leng
Phys102
Term: 131
Online HW-Ch25-Lec03
Q1:
Two parallel-plate capacitors with the same plate separation but different capacitance
are connected in parallel to a battery. Both capacitors are filled with air. The quantity
that is NOT the same for both capac
Phys102
Term: 131
Online HW-Ch22-Lec01
Q1:
The diagram shows the electric field lines due to two charged parallel metal plates.
We conclude that:
A.
B.
C.
D.
E.
the upper plate is positive and the lower plate is negative
a proton at X would experience the
Phys102
Term: 131
Online HW-Ch29-Lec03
Q1:
A square loop of current-carrying wire with edge length a is in the xy plane, the origin
being at it center. Along which of the following lines can a charge move without
experiencing a magnetic force:
A.
B.
C.
D.
Phys102
Q1:
Term: 131
Online HW-Ch19-Lec01
273 cm3 of an ideal gas is at 0 C. It is heated at constant pressure to 10 C. It will
now occupy:
A.
B.
C.
D.
E.
263 cm3
273 cm3
283 cm3
278 cm3
293 cm3
Ans:
B
Q2:
What the number of moles in 1.00 cm3 of an ideal
Phys102
Term: 131
Online HW-Ch18-Lec01
Q1:
The zeroth law of thermodynamics allows us to define:
A.
B.
C.
D.
E.
work
pressure
temperature
thermal equilibrium
internal energy
Ans:
XX (solution was not provided in the notes)
Q2: What is the Fahrenheit scale
Phys102
Term: 131
Online HW-Ch28-Lec01
Q1:
An electron moves in the positive x direction, through a uniform magnetic field in the
negative y direction. The magnetic force on the electron is:
A.
B.
C.
D.
E.
in the negative x direction
in the positive y dir
Phys102
Term: 131
Online HW-Ch26-Lec02
Q1:
The current is zero in a conductor when no potential difference is applied because:
A. the electrons are not moving
B. the electrons are not moving fast enough
C. for every electron with a given velocity there is
Phys102
Term: 131
Online HW-Ch18-Lec03
Q1:
The change of the internal energy of a system depends on:
A- The amount of work W done by the system
B- The amount of work W done on the system
C- The amount of heat transferred to the system
D- The amount of hea
Phys102
Term: 131
Online HW-Ch23-Lec02
Q1:
Two large parallel plates carry positive charge of equal magnitude that is distributed
uniformly over their inner surfaces. Rank the points 1 through 5 according to the
magnitude of the electric field at the poin
Phys102
Q1:
Term: 131
Online HW-Ch27-Lec03
In the circuit shown, both resistors have the same value R. Suppose switch S is
initially closed. When it is then opened, the circuit has a time constant .
Conversely, suppose S is initially open. When it is then
Phys102
Q1:
Term: 131
Online HW-Ch24-Lec03
A particle with a charge of 5.5 108 C is fixed at the origin. A particle with a
charge of 2.3 108 C is moved from x = 3.5 cm on the x axis to y = 4.3 cm on
the y axis. The change in potential energy of the two-pa
Phys102
Term: 131
Online HW-Ch20-Lec02
Q1:
An ideal gas is to taken reversibly from state i, at temperature T 1 , to any of the other
states labeled I, II, III, IV, and V on the p-V diagram below. All are at the same
temperature T 2 . Rank the five proces
Phys102
Term: 131
Online HW-Ch25-Lec02
Q1:
A battery is used to charge a parallel combination of two identical capacitors. If the
potential difference across the battery terminals is V and total charge Q flows through
the battery during the charging proce
Phys102
Term: 131
Online HW-Ch16-Lec01
Q1:
In the diagram below, the interval PQ represents:
A. wavelength/2
B. wavelength
C. 2 x amplitude
D. period / 2
Ans:
D
E. period
Q2:
A wave has an angular frequency of 5.0 rad/s and a wave length of 180 cm. Calcul
Newtons Laws of Motion
Abdulaziz Alaswad
Abdulaziz Alaswad
whenever one object exerts a force on a
second object, the second object exerts an
equal and opposite force on the first.
In shorter form:
To every action there is always an opposed
equal reaction
Atoms and the Periodic Table
Abdulaziz Alaswad
Abdulaziz Alaswad
The origin of most atoms goes back to the birth of
the universe.
Hydrogen atoms H, the lightest atom, was the
original atom. It makes up more than 90% of the
atoms in the known universe.
h
Newtons Laws of Motion
Abdulaziz Alaswad
Abdulaziz Alaswad
Newtons first law of motion is usually
called the law of inertia.
Every objects continues in a state of rest or
uniform speed in a straight lines unless
acted on by a nonzero force.
Abdulaziz Alas
Momentum and Energy
Abdulaziz Alaswad
Abdulaziz Alaswad
By
Momentum we mean inertia in motion
Momentum = mass velocity
When
direction is not an important factor:
Momentum = mass speed
p= mv
If the momentum of an object changes, either the mass
or the v
Abdulaziz Alaswad
When an object
is not moving
Abdulaziz Alaswad
The net force on it equals ze
The object is in equilibrium
Static
equilibrium:
When an object is at rest (not moving)
Dynamic
equilibrium:
When an object is moving at constant speed in a
s
Abdulaziz Alaswad
Objects do not speed up, slow down or
change direction without a force.
Net force:
it is the vector sum of all forces that act
on an object.
Abdulaziz Alaswad
Applied forces
Net force
5N
10 N
5N
5N
5N
Abdulaziz Alaswad
0N
5N
10 N
5N
Sca
Patterns of Motion and Equilibrium
Abdulaziz Alaswad
(384-322 BC)
Abdulaziz Alaswad
Aristotle classified motion into two types:
Natural motion.
Example: light things like smoke rises.
and heavy things like rocks fall.
Violent motion.
any motion resulted