15 mechanical waves
16 sound and hearing
21 Electric charge and electric field
Coulomb's law
where
and
Electric Field
wave power
Electric dipoles
Standing sound waves
inverse square law for intensity
22 Gauss's Law
Standing waves on a string
node at close
Potential Energy of a pair of charges
final-initial, Ratio of Bob to Sally =
p=
n=
=
1kWh = 1 kW*3600s
C2/n m2
=
Volume of a sphere =
Volume of a cylinder =
m=
k=
m/s
olu e
(volume
Current Density
concentration charges (
()
# free electrons =
Potential en
Physics 2306, Spring 2010
Final Exam
Constants and Conversions:
Permittivity of free space: 0 = 8.8510-12 C2/Nm2
Permeability of free space: 0 = 410-7 Wb/Am
Speed of light in vacuum: c =3.0108 m/s
Equations:
Speed of a wave on a string: v
T
v vL
Dopple
Physics 2306
Spring 2010
Second Midterm
Constants and Conversions:
Permittivity of free space: 0 = 8.8510-12 C2/Nm2
Equations:
3
Volume of a sphere: V = 43 r
2
Volume of a cylinder: V = r L
2
Surface area of a sphere: A= 4 r
2
2
Surface area of a cylinder
Physics 2306
Spring 2010
Third Midterm
Constants and Conversions:
Permittivity of free space: 0 = 8.8510-12 C2/Nm2
Permeability of free space: 0 = 410-7 Wb/Am
The speed of light: c = 3.0108 m/s
Equations:
( R / L )t
Current Decay in an R-L circuit: i (t
Physics 2306
Spring 2010
First Midterm
Constants and Conversions:
Permittivity of free space:
0 = 8.8510-12 C2/Nm2
k = 1/40 = 9109 Nm2/C2
Magnitude of the electron charge:
(Electrons are negative)
e = 1.610-19 C
Conversion from Celsius to Kelvin:
0 C = 27
Physics 2306, Spring 2010
Final Exam
Constants and Conversions:
Permittivity of free space: 0 = 8.8510-12 C2/Nm2
Permeability of free space: 0 = 410-7 Wb/Am
Speed of light in vacuum: c =3.0108 m/s
Equations:
Speed of a wave on a string: v
T
v vL
Dopple
Physics 2306
Spring 2010
Second Midterm Answers
(Solutions to follow)
Constants and Conversions:
Permittivity of free space: 0 = 8.8510-12 C2/Nm2
Equations:
3
Volume of a sphere: V = 43 r
2
Volume of a cylinder: V = r L
2
Surface area of a sphere: A= 4 r
Physics 2306
Spring 2010
Second Midterm Solutions
Constants and Conversions:
Permittivity of free space: 0 = 8.8510-12 C2/Nm2
Equations:
3
Volume of a sphere: V = 43 r
2
Volume of a cylinder: V = r L
2
Surface area of a sphere: A= 4 r
2
2
Surface area of
3rd Midterm Study Guide
Phys2306 4:00-5:15 MW Spring 10
Prof. Jonathan Link
Chapter 27:
1) Know how magnets work:
a) Each magnet has a north and south pole
b) Opposite poles attract and
c) Like poles repel.
2)
Know that magnetic field lines point from nor
Final Exam Study Guide
Phys2306 4:00-5:15 MW Spring 10
Prof. Jonathan Link
Chapter 15:
1) Know the relationships between wavelength (), frequency (f), wave velocity (v),
angular frequency (), and wave number (k):
v=f
k=2/
=2f
v=/k
2) Know the formula for
First Midterm Study Guide
Phys2306 4:00-5:15 MW Spring 10
Prof. Jonathan Link
You are expected to memorize any equation that appears in this study guide. You are
expected to know when and how to use other equations, which are mentioned but not
shown.
Chap
2nd Midterm Study Guide
Phys2306 4:00-5:15 MW Spring 2010
Prof. Jonathan Link
Chapter 22:
1) Know how to use the following integral E = E dA to calculate electric flux.
2) Know Gausss Law:
Qencl
E
dA =
0
3) Know how to use Gausss Law to compute the el
The electric potential
Energy Considerations
When a force, F, acts on a particle, work is done on the
particle in moving from point a to point b
Wa b
F dl
b
a
If the force is a conservative, then the work done can be
expressed in terms of a change in
Gauss Law
A law about the electric field and its sources, electric charges
To conveniently express Gauss Law we need to introduce
a quantity called Electric flux.
In terms of flux it is easy to express Gausss Law
Imagine holding a rectangular wire loop o
Superposition of Waves
If wave 1 displaces a particle in the medium by D1 and
wave 2 simultaneously displaces it by D2, the net
displacement of the particle is D1 + D2.
standing waves
Shown is a time-lapse
photograph of a standing
wave on a vibrating
str
Waves
Waves
1. Mechanical Waves ( waves that need a medium for its
propagation)
example: Sound waves, waves on a string, waves in water
2. Electromagnetic waves ( waves that do not need a medium
for its propagation)
example: Light, Microwaves, Radio Waves
Physics 2306
Spring 2010
Third Midterm
Constants and Conversions:
Permittivity of free space: 0 = 8.8510-12 C2/Nm2
Permeability of free space: 0 = 410-7 Wb/Am
The speed of light: c = 3.0108 m/s
Equations:
( R / L )t
Current Decay in an R-L circuit: i (t
Physics 2306
Spring 2010
First Midterm Solutions
Constants and Conversions:
Permittivity of free space:
0 = 8.8510-12 C2/Nm2
k = 1/40 = 9109 Nm2/C2
Magnitude of the electron charge:
(Electrons are negative)
e = 1.610-19 C
Conversion from Celsius to Kelvin
PHYS 2306 Fall 2013
Stefan Stoianov
Contact information
Office: Robeson Hall 324
Office Hours:
Mon: 1:30-2:30 PM,
Wed: 9:45-10:45 AM
also by appointment
iClicker
Register your iClicker on Scholar
Syllabus
Exams
Problem sets with solutions a lot of those w
Charge Carriers
The outer electrons of
metal atoms are only
weakly bound to the
nuclei.
In a metal, the outer
electrons become
detached from their
parent nuclei to form a
fluid-like sea of electrons
that can move through the
solid.
Electrons are the ch
Waves
Waves
1. Mechanical Waves ( waves that need a medium for its
propagation)
example: Sound waves, waves on a string, waves in water
2. Electromagnetic waves ( waves that do not need a medium
for its propagation)
example: Light, Microwaves, Radio Waves
Practice Questions for Final Exam on the New Material
(New Material Means Chapters 32, 33, 34, 23.2 and 23.3)
For Old Material Please Use Your 3 Midterms as Practice Tests
(Old Material Means Chapters 14, 20, 21, 25, 26, 27, 28, 29, 30 and 31)
1. The magn
Practice Test 3
Exam Date: April 14, 5:30pm
Exam 3 covers chapters: 29, 30 and 31
HW: 8, 9 and 10
1. In the figure shown what is the potential difference, Vab if the charge on the 15 microFarad capacitor is 4.0 x 10-6 C?
A.
B.
C.
D.
E.
9.50 V
1.72 V
10.3
Dynamics of SHM
N-II
max = Fx = kx
Hooke
d2x
k
=
x
2
dt
m
differential equation
region of validity
Hookes law
equations of motion
Differential equations
Express relationships
Solution real behavior
Guessing is a valid way to solve a
diff. eqn.
frequenc