Figure 12.1: Simple Pendulum
displacement of the bob,x, is as
x
follows.
(12.3)
sin =
L
We can combine equations 12.2 and 12.3 we get an expression which is valid for only small
angular displacements.
8. Measure the mass of the cup and water system again. Determine the amount of water
now present in the cup. Call this mfull .
9. Determine the mass of the ice by taking the difference between mw and
Chapter 17
Specific Heat of Metals
17.1
Introduction
In this lab you are going to measure the specific heat capacity of two different metals. The
specific heat capacity of a material is defined to be
Figure 18.2: The equipotential lines immediately surround two unlike charges
A) Electric Field Lines
B) Equipotential Lines
Banana Jacks
Probe Leads
Conductive Sheet Holding Apparatus
Power Supply
Chapter 18
Electric Fields
18.1
Introduction
An electric field is said to exist in a region of space where an electric force acts on charges
placed within that region. The field strength is proportion
Figure 18.1: Field Lines Around Point Charges
field. All points, which have the same potential, fall on what are called an equipotential line.
The equipotential lines around a positive point charge ar
The calorimeter we will use is a double wall aluminum container, with an internal cup
suspended inside an outer container. The air space acts as insulation to cut down on heat
losses or gains between
3. Measure the mass of the internal cup of the calorimeter when it is dry and empty.
4. Fill the cup with cool water, about half full. Find the mass of the water in the cup.
5. After the temperature o
4. For each dot on the conductive paper record a value of electric potential in Microsoft
Excel. Each cell in Excel should correspond to a dot on the conductive paper. Make
sure to note which side is
Figure 19.1: Simple Circuit Schematic
PASCO Electronics Spring Board
Resistors
Unknown Resistor
Wire Jumpers
19.3
Procedure
1. Your instructor will demonstrate the use of the multimeter. IMPORTANT
Chapter 19
Ohms Law
19.1
Introduction
If a conductor obeys Ohms law then the resistance is independent of the voltage applied
across it, and the resistance is equal to the quotient of the voltage appl
R
R
T
1
1
1
1
(20.2)
+
+
R
+ .+
R
2
R
3
n
For a combination circuit, that contains both parallel and series portions, the total resistance
can be calculated by figuring out the total effective resista
We can use the conservation law from equation 16.1 to determine the value of Hf . We
combine equations 16.2 and 16.3. Solving for Hf we get this expression:
o
(mw cw + mc cc )(Ti Tf ) mi cw (Tf 0 C )
Chapter 16
The Fusion of Water
16.1
Introduction
The amount of energy required to convert a unit of mass of one substance from one state to
another is called the latent heat of the material. The phase
9. Load the apparatus with a 1 kg mass. Carefully twist the plunger back and forth until
it stops moving.
10. Record the new volume. This is V2 .
11. Calculate the pressure at this new volume. First f
If we examine the forces acting on the bob, we find that there are two, the weight of the
bob and the tension in the string. When the bob is in its equilibrium position these forces
cancel each other.
Notice that the mass of the pendulum bob mass cancels out in the previous expression. This
allows us to reduce equation 12.6.
s
L
(12.7)
= 2
g
So if we hold to our small angle approximation equation
Chapter 13
Standing Waves on a String
13.1
Introduction
Standing waves are produced by the interference of two wave trains with equal velocity,
amplitude, and wavelength, traveling in opposite directi
Figure 13.1: Standing Wave Nodes and Anti-nodes
where v is the wave velocity, f is the frequency and is still the wavelength. Now if the
velocity of the waves on the string is known, the frequency req
The relationship between the tension and the number of anti-nodes can be examined. However substituting from equation 13.1 in equation 13.4 and solving for f:
s
T
f = 4L2 D n
(13.6)
gives the relation
Figure 13.2: Equipment Setup
A Mass, B Pulley, C Wave Driver, D Lab Clamp/Stand
2. Trial II Constant Frequency
1. The Signal Generator should be set to Auto at a frequency of 60Hz with amplitude of
3V
4. Plot frequency versus number of anti-nodes. Use the relationship in equation eq
13.6 to solve for the linear mass density,D. Record this value as D3 .
4. Compare the results of D1 with D2 and D1 wi
14.2
Apparatus
Adjustable Tube
Tuning Forks
Striker
Meter Stick
Thermometer
14.3
Procedure
1. Using the adjustable air column, determine the tube length for the first three resonances
of a tuning
Chapter 14
Speed of Sound in Air
14.1
Introduction
The frequency, wavelength and velocity of all waves are interrelated by the following equation:
v=f
(14.1)
where v is the wave velocity, f is the fre
Figure 15.1: Equipment Setup of Boyles Law
A Wing Nuts, B Plunger, C Plank, D Syringe Body
15.3
Procedure
1. Remove the cap block from the apparatus.
2. Loosen the wing nuts on the base block and care
Chapter 15
Boyles Law
15.1
Introduction
The ideal gas law relates the pressure, volume, and temperature of an ideal gas as follows:
P V = nRT
(15.1)
where P is the absolute pressure of a gas, V is its
The total resistance can be found by the equation:
RT = R1 + R2 + R3 + . . . + Rn
(20.1) A parallel circuit, such as the one in figure 20.2 has a different way to determine the
total
resistance.
Figur
3. By varying the output of the voltage source, obtain at least six different readings for
the voltage and current for the known resistance.
4. Plot a graph of the voltage versus the current for the r
Phys 122
Assignment 2
Due - Feb.08
Name:_ Print full name
Show all work. Include diagrams whenever applicable. Place your solutions in the space below each problem. Highlight or box the final answ