Measuring the wavelength of laser light using a ruler
A laser generates a nearly monochromatic beam of light. The most important characteristic of this light is the lights wavelength, dened as the
distance between successive maxima of the electric eld of
Print Something
At some point during this semester, you must print an object using the 3D
printer in the lab. This object can be something you design for an experiment, something to make your life easier as a student, or just something
thats cool. It must
Radiation Safety
Download, read, and understand the material at http:/physics.csuchico.
edu/ayars/427/handouts/tipler_radiation_safety.pdf, then answer the
following questions:
1. In 1989, Stanley Pons and Martin Fleischman claimed to have achieved
fusion
Lab Hazards
You may use any reference materials you wish for this assignment (other
than someone elses homework, of course) but give proper attribution!
1. To order of magnitude, what is the smallest current you could feel?
To order of magnitude, at what
Dinkerator Chuck
Eric Ayars
Rev A, 6/1/10
0.250
0.750
Tap 6-32
1.000
0.625
0.250
0.875
All measurements in inches,
Tolerance 0.005 inch unless otherwise noted
1
Arduino
Introduction
The Arduino is a user-friendly adaptation of the Atmel ATmega328 microprocessor. It has up to 14 digital i/o lines, six analog inputs, six analog
(PWM) outputs, 32k of program memory, 2k of RAM, and various other
nice features. Basi
1
LabVIEW part 3
Introduction
In this exercise we use LabVIEW to build a virtual instrument which measures the half-life of a radioisotope. This will introduce for loops, curve
tting, and some powerful-but-obscure bits of LabVIEW code such as shift
regist
Counting to 101
1
Introduction
This lab serves as an introduction to digital circuits. Well be using an
SN74HC193 synchronous up/down counter to count clock pulses (which will
be provided by a 555 timer) and then display the count in binary (using
LEDs) a
1
EAGLE: Using the computer for circuit layout
Introduction
Youve probably noticed that this manual contains some nice circuit diagrams. They were drawn using a program called EAGLE: Easily Applicable
Graphical Layout Editor. EAGLE lets you create circuit
1
Basic AC Circuits
Introduction
The purpose of this set of exercises is to give you some practice in dealing
with AC measurements and common ltering circuits. You will have opportunity to calculate the expected response of the circuits, measure the actua
1
Basic DC Circuits
Introduction
This set of introductory lab exercises will provide some experience in using
breadboards to build circuits, show Ohmic and non-Ohmic behavior, and let
you test whether a Thevenin equivalent circuit is really equivalent. It
1
Diodes and AC/DC conversion
Introduction
The purpose of this set of exercises is to gain some experience with diodes,
AC/DC conversion, and power supply ltering. You will also build your rst
useful circuit, a variable power supply.
Procedure
1. Measure
1
Voltage-controlled oscillator
Introduction
The 555 timer is possibly the single most useful integrated circuit in history.
Since its introduction in 1972, it is estimated that over one billion 555s
and closely-related variants (such as 556 dual-555 chip
1
More Op-Amps
Introduction
What, you thought that wed have only one week of op-amp labs?
Procedure
1. Build either the constant-current supply (gure 1) or the sample-andhold circuit (gure 2). Explain how your chosen circuit works and
comment on anything
1
LabVIEW
Introduction
LabVIEW is a standard data acquisition and analysis language within the
scientic community. It is a highly eective tool for experimental control
and data collection, and necessary for further experimental physics work in
physics lab
1
Operational Ampliers
Introduction
Operational Ampliers, or op-amps as they are commonly called, are incredibly versatile components and are much easier to use than individual
transistors for any but the most basic circuits. This set of exercises will
gi
9. An Arduino has six 10-bit A/D converters. If Vref = 5.0V, what is
the voltage resolution of an Arduino?
10. The ELVIS II boards in lab have eight 16-bit A/D converters. Given
the same Vref as in problem 9, what is the voltage resolution of the
ELVIS II
1
Building a permanent circuit
Introduction
Breadboards are great for building circuits while youre in the testing phase
of experiment design, but they have many disadvantages.
The wires will come loose.
The spring clips that hold the wires will lose el
1
Transistors
Introduction
This lab exercise will give you some experience in working with bipolar junction transistors (BJTs). Well be using the 2N3904 general-purpose NPN
transistor to use small currents to control larger currents, to buer circuits
whic
Problem 0
A child attempts to drop a 6.00-gram Oreo cookie into a 250-gram cup of
milk, held 15 cm below the cookie. He does this over an expensive carpet,
so inevitably he misses and drops the milk as well. The cup of milk was
initially at a height of 75
Common Substitutions and Approximations
Trig substitutions:
sin2 x + cos2 x = 1 eix = cos x + i sin x 1 ix sin x = e - e-ix = cos -x 2i 2 1 ix e + e-ix = sin cos x = -x 2 2 sin(x + y) = sin x cos y + cos x sin y = sin 2x = 2 sin x cos x sin(x - y) = sin x
4
Vsphere = r3
3
v = vi + at
1
x = xi + vi t + at2
2
t2
J
v2
= r 2
r
ac =
Ff = Fn
F dt = p
t1
v1f =
m1 m2
m1 + m2
v1i +
2m2
m1 + m2
v2i
v2f =
2m1
m1 + m2
v1i +
m2 m1
m1 + m2
v2i
2
v 2 = vi + 2ax
Fc = m
v2
= mr 2
r
F = ma
dP
F=
dt
Ff = Fn
P = mv
Fs = ks
R=
p mv
v = vi + at
at = r
pi = pf
1
x = xi + vi t + at2
2
I
r2 dm
2
mi ri
i
t2
J
2
v =
2
vi
+ 2ax
F dt = p
t1
v2
ar =
= r 2
r
F = ma =
dP
= U
dt
Ff = Fn
Fc = m
Fs = ks
sf
F ds
W
v2
r
d
dt
d2
d
= 2
dt
dt
W
dW
=
t
dt
1
Idisk = M R2
2
2
Isphere = M R2
5
1
I
Fs = ks
d2 x
= 2 x
dt2
g=
Fg
m
=G 2
m
r
Iring = M R2
1
Idisk = M R2
2
2
Isphere = M R2
5
1
Irod,CM = M L2
12
I = ICM + M R2
r F = rF sin
= I =
dL
dt
x(t) = A cos(t + )
= 2f =
2
T
spring =
k
m
1
ESHO = kA2
2
T = 2
Fg = G
m1 m2
r2
Constant
Gravitational
R=
v 2 sin(2)
g
v
a
dx
dt
dv
d2 x
= 2
dt
dt
x = r cos()
y = r sin()
r=
Asphere = 4r2
x2 + y 2
tan() =
y
x
Acircle = r2
Constant
Acceleration of Gravity (near Earth)
Speed of light in vacuum
Atomic Mass Unit
Avogadros Number
1
Symbol
g
c
u
NA
4
Vsphere = r
How to Study Physics
Before class each day:
Read the required section(s) of your text. Depending on the layout of your
text, you may need to read material from sections around the required
section as well. Try to answer any questions in the text as you g
Fc = k
qq
r2
E =k
q
r2
I
I=
F = qE
Uc = k
Q
t
V
R
R=
qq
r
L
A
P = IV = I 2 R =
V2
R
W = q E (ya yb )
V =k
E=
q
r
Loop rule:
I = 0 for any junction
V = 0 around any loop
V
s
FB = qvB sin
Q
V
FB = I B sin
C
C=
Junction rule:
1 1
a b
Wab = kqq
o
A
d
R=
Cp
Fc = k
qq
r2
E =k
q
r2
C
C=
Q
V
o
A
d
F = qE
Cp = C1 + C2 +
qq
Uc = k
r
1
1
1
=
+
+
Cs
C1
C2
W = q E (ya yb )
Wab = kqq
V =k
E=
K=
1 1
a b
q
r
U=
V
s
Constant
Gravitational Constant
Acceleration of Gravity (near Earth)
Speed of light in vacuum
Coulombs
na sin a = nb sin b
v=
=
c
n
h
h
=
p
mv
E = hf =
hc
v = f
1
mv 2 = hf
2 max
r2 r1 = m constructive interference
r2 r1 =
1
m+
2
p=
distructive interference
=
En =
o
n
13.6 eV
hcR
=
n2
n2
1
=R
m = d sin multi-slit interference maxima
1
m+
2
E
hf
h
=
=
c