frequency | hertz | Hz | s-1 | force | Newton | N | kg*m*s-2 | work/energy | joule | J | kg*m2*s-2 | power | watt | W | kg*m2*s-3 | pressure | Pascal | Pa | kg*m-1*s-2 | charge | coulomb | C | A*s | potential difference | volt | V | kg*m2*s-3*A-1 | resistance | ohm | Ω | kg*m2*s-3*A-2 | Systematic and Random Errors * Systematic error * Affects each measurement the same way * Error by system * E.g. lack of calibration (zero error) * E.g. Wrong theory
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Experiment 4: Experimental Errors and Uncertainty Brett R. Spencer Date Performed: June 10th‚ 2015: 3:10 p.m. PHY 111C02 Section 1: Experiment and Observation Time‚ t (s) Dist. Y1 (m) Dist. Y2 (m) Dist. Y3 (m) Dist. Y4 (m) Dist. Y5 (m) Mean of Y Standard Dev. t^2 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.50 1.00 1.40 1.10 1.40 1.50 1.28 0.22 0.25 0.75 2.60 3.20 2.80 2.50 3.10 2.84 0.30 0.56 1.00 4.80 4.40 5.10 4.70 4.80 4.76 0.16 1.00 1.25 8.20 7.90 7.50 8.10 7.40 7.82
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Title Experiment with a spiral spring (Oscillation) Objective 1. To show how the time of vertical oscillation depends on the load 2. To determine the spring constant 3. To determine the effective mass of the spring Introduction In this experiment‚ it is to show how the time of vertical oscillation depends on the load‚ to determine the spring constant and to determine the effective mass of the spring. An ideal spring is remarkable in the sense that
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Quality of measurement Write Up Wire Wire This diagram shows how we carried out our experiment‚ by connecting 2 wires to the ohmmeter and attached the wires to the samples we used in our experiment. Preliminary Experiment At first in our preliminary experiment my group and me decided to use an ohmmeter instead of a multimeter. We did this as we thought it would make it easier for us to record our results. These are the results we got from our preliminary experiment: Length (mm)
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apart from the independent variable that we were measuring (weight). Step 2 was then repeated‚ changing the weight every time. We collected the data in a table. Variables These are the variables that are controlled. Controlled variables: - 1 metre distance Observer Trolley Angle of the incline Independent variable: - Mass added to the trolley (g) Dependent variable: - Velocity of trolley (m/s) Momentum of trolley (kg m/s) Results Mass (kg) Distance (m) Time (seconds) Velocity
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Error Analysis Lab By: Lab Team 5 Introduction and Background: In the process of learning about the importance of measurement and data processing‚ lab teams were given prompts to design experiments as well as address the precision‚ accuracy‚ and error analysis within the experiment. Lab teams collaborated their data to find similarities and differences within their measurements. Through this process‚ students learned the importance of the amount of uncertainty as well as the different
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Experiment 1 Laboratory Techniques and Measurements Purpose: To determine measurements of different items that vary from solids to liquids and be able convert those values to other SI units of measurement. Procedure: I used a variety of scientific tools such as; a ruler‚ beaker‚ graduated cylinder‚ volumetric flask‚ thermometer‚ burner‚ and digital scale to find unknown values of measurements for each of the indicated
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Practical 1 ________________________________________________________________________ To investigate how the resonant frequency f of a vibrating wire is affected by the tension F of the wire Objectives: To study stationary waves in a string. To find the mass per unit length of a string using standing waves in the string. Apparatus and Materials: 1 Function generator 2 Thread 3 Pulley 4 Wooden wedge 5 Slotted masses 6 Meter rule 7 Vibration generator Setup: Figure 1-1 Theory: Velocity of a
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Errors and Uncertainty in Experimental Data Causes and Types of Errors Conducting research in any science course is dependent upon obtaining measurements. No measure is ever exact due to errors in instrumentation and measuring skills. If you were to obtain the mass of an object with a digital balance‚ the reading gives you a measure with a specific set of values. We can assume that the actual measure lies either slightly above or slightly below that reading. The range is the uncertainly of
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Lab Report 1: Measurement Lab Date: January 17‚20XX Lab Partners: XZ Report Date: January 24‚2014 Report Written by: XXXXXX Introduction: Measurement is a form of quantitative observation. The ability to make accurate and precise quantitative observations is crucial to science. Accuracy in this sense refers to the closeness of the measured result to the hypothetical “true” value (Motzny 2014). Having a precise measurement implies its exactness.
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