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Rubenstein
Lab Alec 7 Pre-Lab
Empirical Analysis of a Ring Pendulum
2, 4, 6, 8: Part 2 of 5
2.
I do not think that varying the mass will affect the period of oscillation. Because the
pendulum is based off the force of gravity and all objects fall at the same rate of acceleration, I
believe that this property will apply to the pendulum and mass will not affect the period of
oscillation.
4.
I believe that the value of night expected in this experiment is a 2 because the pendulums
movement has to do with the moment of inertia where I=mr^2. Thus the relationship between
the rings diameter and period would be quadratic. If n=1, the relationship would be If
n=3, linear. the relationship would be a cubic function.
6.
If the period of oscillation did depend on the mass of the ring, it could be incorporated
into the empirical equation, would change to be where some constant, b, divided by the mass of
the object makes up the constant a in the empirical equation.
8. The uncertainty of the period should be calculated based off of the standard deviation.
5 (part 2). We should use rings of widely different diameters to provide a more accurate
depiction of the relationship between ln(T) vs. ln(D). Rings of similar diameters make it more
difficult to observe the relationship between these two variables.

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UNC - PHYS - 104

Lab 8 Sound WavesSection 442 Arada MalekianThursday, April 7, 2011Alec RubensteinPartners: Andres NovoaPledge:Data & Analysis:Part A:Tuning Fork Rubber MalletModelC256B480Amplitude0.01090.120Frequency (Hz)253.91478.52Tuning Fork Plastic

UNC - PHYS - 104

Physics 24 Lab Exam SAMPLE (with answers)Name: _Student ID# _Date: _ Time: _Lab Instructor: _Instructions: Work individually to complete each exercise to the best of your ability, show all your work, andclearly explain your answers in the spaces pro

UNC - PHYS - 104

Alec RubensteinMarch 16, 2011Pre-Lab 6:Pre-Lab 6: Questions1. The objective of this lab is to experiment with translational kinetic energy and rotational kinetic energy tocalculate the geometric factor k for a rotating object. We are also trying to c

UNC - PHYS - 105

This data analysis template was created by David Bordelon for the Physics 26 lab on Conservation of Linear Momentum. Last revised: 2/23/04MassesTrial 1Trial 2Trial 3SE in massAvg massRel U in massBefore Collisionaverage m/sstd error in vrel u i

UNC - PHYS - 105

Abstract(10 pts.) Provide an abstract for this experiment here.The purpose of this experiment was to measure the e/m ratio of an electron, the ratio ofan electron's charge to its mass, and compare it to the currently accepted value of e/m. ADC power s

UNC - PHYS - 105

Determination of e/m for the ElectronTrial 1Trial 2AverageBeam Diameter (m) Current (A) Current (A) Current (A) Vacc (Volts) 1/(d^2 + a^2) ui0.00504.594.524.5650.328376.840.01002.732.752.7450.39071.120.01252.062.122.0950.36006.370.0

UNC - PHYS - 105

1. The Earths magnetic field has a strength of about 0.5 gauss. What magnetic fieldstrength must be produced by the coils so that the Earths magnetic field has lessthan a 1% effect on this experiment? How much current through the coils is neededto prod

UNC - PHYS - 105

The Electric Field and PotentialSection 422, B.J. AndersonStephen HarperPartners:Tuesday, September 13, 2005.The work presented in this report is my own, and the data were obtained by my labpartners and myself during the lab period.Abstract:The o

UNC - PHYS - 105

Electric Fields and PotentialsPhysics 105 Lab Section 432: Daniel KeeverJanuary 24, 2007Josh KahnLab Partner: Carl Anderson"I pledge that I have neither given nor received any unauthorized assistance on thisassignment. Signed:_"AbstractIn this exp

UNC - PHYS - 105

0.000.010.020.030.040.050.060.070.080.090.100.110.120.130.140.150.160.170.180.190.200.210.220.230.240.250.260.270.28Voltage (V)x0.790.760.680.590.510.390.240.080.000.711.682.833.734.745.906.977.979.1110.181

UNC - PHYS - 105

Determination of e/m for the ElectronSection 422, B.J. AndersonStephen HarperPartner: Sarah BassTuesday, October 4, 2005The work presented in this report is my own, and the data were obtained by my labpartners and myself during the lab period.Abstr

UNC - PHYS - 105

Empirical Analysis of a Ring PendulumPart 1:Table Im1= 99.4 gm2= 104.8 gm3= 35.0 gRingm1m2m3T1T2T3T4T5Average T0.259 0.2580.260 0.258 0.2590.260 0.2590.259 0.258 0.2580.261 0.2540.254 0.254 0.2540.2590.2590.255standard error of T

UNC - PHYS - 105

Sample Calculations for part 1:Standard Error of T =sN=(T 1 T ) 2 + (T 2 T ) 2 + (T 3 T ) 2 (T 4 T ) 2 + (T 5 T ) 2NNStandard Error of T=(.259 .259) 2 + (.258 .259) 2 + (.260 .259) 2 + (.258 .259) 2 + (.259 .259) 25= 0.00045Fractional error o

UNC - PHYS - 105

Part 1 Sample Calculations:Standard uncertainty of x^2 =( x1 x) 2 + ( x 2 x) 2 + ( x3 x) 2=n 1Calculating k:4H4(0.765)k +1 ==1 =slope0.0448(.39 .389) 2 + (.39 .389) 2 + (.387 .389) 2= 0.0023 1

UNC - PHYS - 105

Equilibrium of Forces Acting at a PointDate:Name:TA:Partners:Section:Part 1: Find the force required for equilibrium (3 forces)MeasurementsPulley 1Mass (kg) :um (kg) :Angle (rads) :u (radians) :ConstantsPulley 20.14960.00204.04910.0349P

UNC - PHYS - 105

PHYS105. EXP2: Ohms Law and Electric CircuitsPrelab Questions:1. How can you tell from an I-V curve if a device is ohmic?A device is ohmic if it satisfies Ohms law: V = IR. An IV curve can indicate if thisrelationship is valid by displaying I vs. V. I

UNC - PHYS - 105

The most likely sources of uncertainty in this experiment are the inability of us to takeinto account any wind resistance or friction created between the ball and the air. As aresult, the measurement of the distance will be limited to a certain degree o

UNC - PHYS - 105

TABLE 1Helium ColorDeep BlueBlueBlue-GreenGreenYellowRedRedTABLE 2Hydrogen ColorFirst orderBlue (m=1)Blue-Green (m=1)Red (m=1)Second OrderBlue (m=2)Blue-Green (m=2)Red (m=2)Wavelength X R (meters)X L (meters) Average D4.471E-070.130

UNC - PHYS - 105

Experiment 9.a - RadioactivityCourse Voltage = 800Fine = 175Background Radiation average = 158Table 1rcountnet countln [r]ln(N)0.143874229-2.302585093 8.34972083750.1519001742-1.8971199849 7.46278915740.2944786-1.6094379124 6.66695679

UNC - PHYS - 105

Useful Formulae and ConstantsCoulomb ForceFkMagnetismQ1Q2r2F qEQEk 2r NIF 0 I1 I 2; Bloop 0L 2 r2R1Bsol 0 nI ; E LI 22Electric PotentialQV krPE qVMagnetic Induction B BA cos B NtQ CV1U QV 211 Q22CV 22CTransformersVS

UNC - PHYS - 105

Gas Thermometer Temperature Scale: Data AnalysisProom (mmHg)Temp (C)P (mmHg)LINEST results:slope =Err:502(slope) =Err:502Err:502R2 =v/R (theor.) =v/R (exper.) =rel. unc. =rel. error =#DIV/0!Err:502Err:502Err:502v/R - theory#DIV/0!K*m^

UNC - PHYS - 105

Voltage (V +/-0.001V) x (meters)0.8280.7300.5240.2320.0000.081.8500.13.9500.126.0600.148.1400.1610.3200.1812.0000.211.69011.43011.25011.140E (V/r)Voltage (V)0.0001.8503.9506.0608.14010.32012.000x (meters)0.00-0.0980.02-

UNC - PHYS - 105

Voltage Over Time for Discharging of Capacitor121086420f(x) = -0.007509728x + 1.905107503R = 0.14349242290100200T ime (Seconds)300400ln(Vc/Vo) vs. Time for Discharging of Capacitor0-1 0Volt a g e ( Volt s )Volt a g e ( Volt s )V in Vo

UNC - PHYS - 105

Part 1Angle of Incidence (degrees)Refraction 101020304050607080Refraction 205121925303539410815212232374042

UNC - PHYS - 105

Reflection, Refraction and Polarization LabSuneet BhansaliFebruary 24, 2010TA: RyanPartners: Carolina, Logan, and TreyPhys 105 Section 413Pledge _Abstract:In this lab we investigated the refraction and reflection by experimentally determining the

UNC - PHYS - 105

h4.00E156.408E034stoppingpotential(1st) stoppingpotential(2nd)0.7750.7640.8970.8861.4951.4791.7051.6851.9611.981eUmUhbFomh1.33712.1420342E0193342750000000003.00E154.806E034UbUUfoeUmUhbFo0.56138.992026E020187100000000000

UNC - PHYS - 105

Voltage versus Current for the carbon resistorCurrent (mA) Current (A)Voltage (Volts)1.450.001450.9964.450.004453.0407.340.007345.00010.280.010287.00013.250.013259.00016.260.0162611.01019.280.0192813.01022.310.0223115.070V vs. I

UNC - PHYS - 105

AbstractIn this experiment, we investigated the hypothesis that resistors satisfy Ohmslaw. In part one, an ohmmeter was used to measure the resistance of three resistorsseparately, in series, and in parallel. In the second part of the experiment, a cur

UNC - PHYS - 105

The RC CircuitSection 422, B.J. AndersonStephen HarperPartner: Sarah BassTuesday, September 27, 2005The work presented in this report is my own, and the data were obtained by my labpartners and myself during the lab period.Abstract:Data Analysis a

UNC - PHYS - 105

Photoelectric EffectSection 422, B.J. AndersonStephen HarperPartner: Sarah BassTuesday, November 15, 2005The work presented in this report is my own, and the data were obtained by my labpartners and myself during the lab period.Abstract:In the lab

UNC - PHYS - 105

Sample Calculations:Mass Measurements:M (kg) = 0.0001 kg because +/-0.1 g is the precision of the balanceSpeed Before collision:v (m/s) = +/- 0.5mm/ 1/20 seconds = 10 mm/sec = 0.01 m/su =u (deg) =0.516 = 0.009180180Mass 1 before collision:Px =

UNC - PHYS - 105

PHYS104. EXP6: Energy of a Rolling ObjectPrelab Questions1. What is the objective of this lab?The objective of this lab is to employ the concept of the Law of Conservation of Energyin order to determine a constant in the equation of the moment of iner

UNC - PHYS - 105

t^2 vs xt0.40.60.811.22x1.1771.4131.7231.912.15a0.8 0.57748021.2 0.60103111.6 0.53895122 0.54823062.4 0.5191996average a:0.5569785Part 1: T ime Squared vs. X54.543.532.521.510.500.4t ^2t^2x1.3853291.9965692.9687293.

UNC - PHYS - 105

Ohms Law and Electrical CurrentsSuneet BhansaliFebruary 3, 2010TA: RyanPartners: Caroline, Logan, Jennie, TreyPhys 105 Section 413PledgeAbstract:In this experiment, we measure the current-voltage qualities of a resister in order todetermine if th

UNC - PHYS - 105

Time of flight:(Part 1 Prediction)1y = y 0 + v 0 t gt 22Part 2 Prediction1y = y 0 + v 0 t gt 221h f = h0 + v 0 sin t gt 2212gt210 = 1.06 + 3.29 sin ( 30 ) t (9.8)t 2210 = 1.06 + 3.358 sin ( 30 ) t (9.8)t 22Using the quadratic equation

UNC - PHYS - 105

In this investigation, we studied the motion of a projectile and investigated the hypothesisthat horizontal motion is independent of vertical velocity. We measured the initialvelocities of a ball, shooting it at a short and a long range setting. Measure

UNC - PHYS - 105

PHYS104. EXP5: Conservation of MomentumExperiment Date, Lab PartnersDate of Experiment: 10/09/06Names of Lab PartnersMary Shanley MorganAbstract(10 pts.) Provide an abstract for this experiment here.In this experiment, we investigated the hypothesi

UNC - PHYS - 105

Equilibrium of Forces Acting at a PointPhys 104LSection 435Lin LetianSeptember 13, 2006Josh KahnLab partner: Shanley MorganUNC Honor Pledge:_AbstractIn this experiment, we investigated the hypothesis that forces exhibit additiveproperties and al

UNC - PHYS - 105

General Lab Report Grading Rubric for Introductory Physics Labs at UNC-CHEffective Fall 2001, last revised: 8/22/01Name: _Lab: _Note: The weight assigned to each of the categories below is the same for all lab sections (numbers in bold);however, the

UNC - PHYS - 105

The acceleration of a rotating object is not zero for uniform circular motion because thevelocity of that object is tangential to the circle. To continue to move around the circlewith constant speed, a force must be acting on the object. That force is t

UNC - PHYS - 105

1. What possible values of n might we expect for this experiment? What kind ofrelationship between the rings diameter and period would correspond to each of thesevalues (linear, quadratic, etc.)?n is the constant in the equation T = A*d^n that relates

UNC - PHYS - 105

Shaleen Shukla - Physics 12 Spring 2009Copy of Practice Exam #11Going to Innity/res/prenhall/walker/Physics_2E/Chap20/jsw-prob2028.problem1) E 7.99 [7.8321049014542,8.15178265253396] Sig 0 - 152) A 1.58 [1.55004156021701,1.61330856267485] Sig 0 - 15

UNC - PHYS - 105

Shaleen Shukla - Physics 105 Spring 200912Copy of Practice Exam #111 ptA charge of 3.20 C is held xed at the origin. A secondcharge of 3.20 C is released from rest at the position (1.05m, 0.552 m). If the mass of the second charge is 2.43 g, whati

UNC - PHYS - 105

Shaleen Shukla - Physics 12 Spring 2009Practice Problems 2 (UNC)1Induced Current/res/prenhall/walker/Physics_2E/Chap23/jsw-prob2314.problem1) A 4.10E+02 [401.545280437756,417.93488372093] Sig 0 - 15Loop of Wire in a FieldUnit: T/s/res/msu/physicsl

UNC - PHYS - 105

Shaleen Shukla - Physics 12 Spring 2009Practice Problems 2 (UNC)11 ptA single conducting loop of wire has an area of 7.31E-2 m2and a resistance of 117 . Perpendicular to the plane of theloop is a magnetic eld of strength 0.112 T. At what rate (inT/

UNC - PHYS - 105

Shaleen Shukla - Physics 12 Spring 2009Practice Problems #31Relativistic MomentumTwo Slits/res/fsu/giancolilib/Chap26_SpecialTheoryRelativity/gcprob2626.problem/res/prenhall/walker/Physics_2E/Chap28/jsw-prob2814.problem20) E 3.37E+03 [3305.42079

UNC - PHYS - 105

Shaleen Shukla - Physics 12 Spring 2009Practice Problems #311 ptIn Youngs two-slit experiment, the rst dark fringe abovethe central bright fringe occurs at an angle of 0.267. Whatis the ratio of the slit separation, d, to the wavelength of thelight

UNC - PHYS - 105

1. What is the meaning of the time constant, RC?The time constant, RC, is a characteristic of all exponential curves and gives anindication of the rate of change of the current. It indicates, for an exponential situation,the length of time required for

UNC - PHYS - 105

4.) According to the equation E = F/q, E=0 when F=0. Experimentally, we are ableto tell where E = 0 whenever the net force acting on a positive test charge equalszero. By placing an object in the electric field and testing the charge on it, we areable

UNC - PHYS - 105

Prelab questions:1. An I-V device is ohmic if the I-V characteristic forms a straight line, thussatisfying Ohms law, V = IR.2. A voltmeter should be connected in parallel with a resistor. This is becausevoltmeters have very large resistance, and only

UNC - PHYS - 105

Stephen HarperTuesday, November 08, 2005Prelab questions: Photoelectric effect1. The three objectives in this experiment are to study planks constant and itsrelation to intensity and stopping potential.2. The data should be graphed before leaving to

UNC - PHYS - 105

Stephen HarperPrelab Radioactivity1. The Alpha particle requires the most sheliding.2. We will study the Gamma ray.3.

UNC - PHYS - 105

Stephen HarperPrelab the RC Circuit1. The time constant, RC, is a value that gives the rate that the exponential curve willfall or rise, in this case, fall.3. The time constant is a constant value that yields a rate of growth or decay. It is notan ac

UNC - PHYS - 105

Stephen HarperTuesday, October 11, 2005Prelab questions: Reflection, refraction and polarization.1. The angle of refraction will be measured more than once in this experiment.2. The method that gives the least uncertainty will be the most precise. The

UNC - PHYS - 105

Stephen HarperTuesday, November 15, 2005Prelab questions: Rydberg Constant1. The helium tube is used instead of just the hydrogen tube because the heliumspectrum has 7 easily distinguished colors to hydrogens 3.2. Taking measurements on both the left

UNC - PHYS - 105

Stephen HarperTuesday, October 25, 2005Prelab questions: Thin lenses and lens systems1.2.3.4.5.In manualThe image will show half of the object.The image will show the entire object, but it will not be the same size.The image distance in the con

UNC - PHYS - 105

Projectile MotionName: _Date:_Section:TA: _Partners:Part 0:Projectile Motion SetupPart12Height (m)1.061.06uH (m)Angle ()0 (rad)00.0000.0050.0059.8Gravity (m/s)=u ()u (rad)10.0171.51x (m) =Part 1: Time of Flight vs. Initial Vel

UNC - PHYS - 105

RadioactivitySection 422, B.J. AndersonStephen HarperPartner: Sarah BassTuesday, November 30, 2005The work presented in this report is my own, and the data were obtained by my labpartners and myself during the lab period.Data Analysis and Results:

UNC - PHYS - 105

Reflection, Refraction LabAbstractThe purpose of this lab was to investigate the phenomenon of refracted and reflected lightby experimentally determining the index of refraction for an acrylic substance. In eachpart of the experiment, a HeNe laser bea

UNC - PHYS - 105

Reflection, Refraction and PolarizationPart 1. Snell's Law and Index of RefractionAngle of IncidenceRefraction1 Refraction2 Sin(Incidence Angle) Sin(Refracted Angle 1) Sin(Refracted Angle 2)00000010580.17364817770.0870.1392012150.342020

UNC - PHYS - 105

Reflection, Refraction & Polarization Pre-lab1. Which one quantity is being measured by several different methods in thisexperiment?The index of refraction will be measured by several different methods in this experiment.2. How will you determine whic