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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Title : Centripetal force Objective To measure the centripetal force for whirling a mass round a horizontal circle and compare the result with the theoretical value given by F = m(2r . Apparatus 12 slotted weights with hanger (0.02kg each) 1 rubber bung with nylon string about 1.5m 1 glass tube about 20cm long 1 triple beam balance 1 meter rule 1 stop watch Several small paper markers Theory When a mass m attached to a string is whirled round a horizontal circle of radius r‚ the
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Senior School STUDENT NAME: _______________________________________ GRADE 11 TEACHER: ______________________________ Date submitted: ____________ IB Chemistry TOPIC 1: Stoichiometric Relationships SUB TOPIC: Gas Laws ASSESSMENT TASK Laboratory Report INVESTIGATION: Investigating the Relationship Between Pressure and Volume Using Data Loggers YEAR 11 IB Chemistry ASSESSMENT CRITERIA The result for this Assessment Task will contribute to your A – E grade for the semester
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“when the concentration of NaCl is higher‚ osmosis will occur more readily causing the potato to decrease in percentage mass”. The results were recorded onto a table and then graphed. The patterns of our results were great besides for an odd random error. The results illustrated that as the concentration of NaCl solution increased the percentage mass of the potato cylinder decreased. All members who participated in conducting the experiment worked collaboratively and followed correct safety procedures
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sample size of the experiment is 3‚ which means every different increase of probability of infection was tested three separate times. It is desirable to increase the sample size of an experiment‚ because it decreases the amount of random and systematic errors made. It also provides more reliable and more accurate results‚ because you are testing that probability more times. During the experiment and the write up of this practical I believe that I managed to work collaboratively and successfully work
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Home Assignment Research Design WRITE TRUE OR FALSE: 1) A research design is a framework or blueprint for conducting the marketing research project. TRUE. 2) Specifying the measurement and scaling procedures is one of the components involved in research design. TRUE 3) Specifying the format of the marketing research proposal is one of the components involved in research design. FALSE 4) There are three main types of research designs employed in marketing research: exploratory‚ descriptive
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CAMBRIDGE INTERNATIONAL EXAMINATIONS Compiled by Imran Mirza MSc Physics‚ PGCC‚ Scoland‚ Uk Planning Analysis And Evaluation A-level Physics This booklet covers CIE A Level Physics Paper 5 By Imran Mirza 2009-2011 Exam tips for Planning‚ Analysis and Evaluation paper By Imran Mirza Don’t rush........ Three golden rules........ 1. Read the question 2. READ the question 3. Answer the question Make sure that you do not do what so many students do......they see a ’key c word like ’magnetic flux’
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SCM 485 Exam 1 Review Forecast Notes Supply Chain Management Sequence of activities and organizations involved in producing and delivering a good or service SCM Define by Council of Supply Chain Management Professionals (CSCMP) Supply Chain Management encompasses the planning and management of all activity involved in sourcing and procurement‚ conversion‚ and all logistics management activities. Importantly‚ it also includes coordination and collaboration with channel partners‚ which can
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Abstract This investigation was undertaken in order to observe the effects of changing the temperature of the solution that a potato cube is placed in. The temperatures that were tested in this investigation were 0°C‚ 20°C (room temperature)‚ and 70°C. This investigation tested the hypothesis: The rate of osmosis will increase as the temperature increases 2x2x2cm cubes of potato were weighed and then placed into 100mL of 10% NaCl solutions for 10 minutes. After 10 minutes the cubes were again
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release (t) / s Deviation of the average from the maximum data value (t) / s Deviation of the average from the minimum data value (t) / s Maximum deviation of the average from the data values (t) / s Systematic error (t) / s Absolute Uncertainty (t) / s (Random error +systematic error) 0.000 0.00000 0.0 0.0 0.0 0.00001 0.00001 0.150 0.180 0.00053 0.00099 0.00099 0.00001 0.001 0.300 0.245 0.00127 0.00072 0.00127 0.00001 0.002 0.450 0.3012 0.00055 0.00056 0.00056 0.00001 0.0006 0.600 0.3487 0.00046
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