circumstances. 2. Know how to “correctly” measure volume and mass (weight). 3. Become familiar with significant figures and its relationship to measurements and data recording (significant figures). 4. Become familiar with the errors‚ precision and accuracy associated the various measurement tools and techniques. 5. Determine the density of liquids and solids. 6. Determine the best-fit straight line as a method to examine linear relationships and to use this relationship as a predicative model
Premium Accuracy and precision
’Stock Records Accuracy’ means: (1) a correspondence between what is present on the computer file and what physically exists‚ in reality‚ (2) that activities which have been recorded as taking place against stock are truly what in fact occurred‚ and (3) that no activity which took place is unrecorded in the system. As we shall see‚ the central stock file is a most important element of any system within the company. The records within the file are ’keyed’ on each product’s unique item code**. That
Premium Computer program Computer RFID
Pipetting‚ weighing‚ accuracy and plotting Introduction In this practical‚ there were three parts in which basic skills and key ideas were put into practice as they are essential to working in the laboratory in order to get reliable and valid results; one of the basic skills put into practice was pipetting. This was the main objective for the whole practical‚ as pipettors are the fundamental tools used to measure liquids in laboratories. Not only did this develop the skills and confidence acquired
Premium Accuracy and precision Measurement Density
Detailed Lesson Plan in Mathematics IV I.Objectives At the end of the lesson‚ the students should be able to: 1. Identify linear equation in two variables. 2. Solve and graph linear equation in two linear variables 3..Present solutions with accuracy and precision in ones work. II.Subject matt... Premium763 Words4 Pages Detailed Lesson Plan A DETAILED DEMOSTRATION LESSON PLAN IN SCIENCE AND HEALTH V I. OBJECTIVES At the end of the lesson‚ the pupils should be able to: a. Identify ways by which solar
Premium Accuracy and precision Lesson plan Energy
discrepancies in the weight of different graduated cylinders. 4. a) In Part B‚ you are instructed to deliver “about 2 mL” of water from a buret “with a precision of 0.01 mL.” Which of the following quoted volumes is/are consistent with these instructions? 1.87 mL it follows instructions for precision‚ but not necessarily for accuracy 1.999 mL this does not use the number of significant digits we are supposed to use (3 sd would be 1.99 mL) 2.03 mL it
Premium Accuracy and precision Mass Measurement
Experiment 1 (week 2) The purpose of this experiment is to become familiar with the precision and accuracy of scientific glassware. I figured the smaller the glassware the more accurate the measurements would be. Which when we were preforming the experiment proved my theory. As the glassware got smaller the easier it was to get the accurate amount of water into the glassware. We went from a big flask to a small beaker to an even smaller pipette. We used a scale to get the appropriate weight
Premium Laboratory glassware Volume Accuracy and precision
household chemicals together. Accuracy is the magnitude in which a certain measurement agrees with the standard worth for that measurement (Dictionary‚ 2011). Precision is how close the measured standards are to each other (Math is fun‚ 2011). Society depends on accuracy and precision in everyday life. These two relationships are often substituted freely‚ but both have crucial differences. Businesses entail both accurate and precise measurements to stay in business. Accuracy states that something is
Premium Accuracy and precision Measurement
lives even though we may not realize that chemistry is everywhere. This paper serves to examine the ways in which chemistry is relevant in everyday life and in society. It will also examine the difference between accuracy and precision and provide examples of when accuracy and precision are crucial in measurements and why society depends on these measurements to be accurate and precise ( Tam 2012). Chemistry in Society When we turn on the tap and fill a glass with water and drink it‚ we are benefitting
Premium Accuracy and precision Measurement Chemistry
Spectrophotometer Introduction In scientific experiments‚ correct measurements are required to achieve precise and accurate data. Precision is the degree to which several measurements provide answers very close to each other. Accuracy describes the nearness of a measurement to the standard or true value. Certain measuring devices are used to attain precision and accuracy. One example is the Air displacement pipette or the micropipettes. The micropipettes are measuring tools used to transfer liquid
Premium Accuracy and precision Measurement
6429 Ω (from the graph) ΔS = |S1 - S2| / 2 = | (-0.4714 - (-0.6429)) | / 2 = 0.08580 Ω (cor. to 4 sig. fig) _THE INTERNAL RESISTANCE OF THE BATTERY ± Δ INTERNAL RESISTANCE OF THE BATTERY = 0.5223 Ω ± 0.08580 Ω_ (COR. TO 4 SIG. FIG) Percentage precision = (1.000 - 0.08580 /0.5223) x 100% = 83.57% (cor. to 4 sig. fig) _THE EMF OF THE BATTERY_ Uncertainty for intercept vertical axis From the graph above (Voltage against Current) Intercept vertical axis of the best-fit line = 1.2969 V (from the
Premium Accuracy and precision Analytic geometry Battery