Homework Answers
1) Number of significant figures indicated = 3
2) As, density = Mass/Volume
=> accuracy means how precise the values of mass and volume are calculated .
=> mass and volume are quantities that determine accuracy .
3) Here, standard error = (Experimental value - measured value)/(Experimental value) * 100 %
=> accuracy = 1/standard error
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Measurement of Density Lab
Consider the uncertainty in the measured value of rho to be given...
Name: Date: CVEN207-Sures2019 In today's laboratory we will learn measurement technigues that will be used in...
Name: Date: CVEN207-Sures2019 In today's laboratory we will learn measurement technigues that will be used in laboratory over the routine calculations. Lastly we will look at how uncertainty relates to measurement, precision and Laboratory # 2 : Measurement and UncertaintyY Introduction semester. We will also examine the use of dimensional analysis and significant figures in performing accuracy. Precision Scientific measurements should be as precise as possible: this means that every measurement will include one uncertain or estimated digit. The number...
Using the tables answer the question 1, (under questions) Mass Data and Calculations Table Aluminum Brass...
Using
the tables answer the question 1, (under questions)
Mass Data and Calculations Table Aluminum Brass Iron M1 (kg) | M2(kg) | M3 (kg) | M4 (kg) | M(kg) | ơn--1 (kg) | 때(kg) 0.0863 00864 0.086 0086 0.08631 1.436,10 .18 l0 02699 0.2699 0.26 0.260 0.2696945830 .2810 Zero Reading of the calipers Length Data and Calculations Table 0.0315 0.0314 0035 0.0349 0.00165 8.250" Aluminum 0.0318 10.0318 | 0.0310|0.0316 |0.0318 |1.633x10"18-16 SUP 00315 0.0315 lo'031S 0,0316 0,0315 ч L0824(1014.12(10 Iron...
LAB 1 PROBLEM 1: INTRODUCTION TO MEASUREMENT AND UNCERTAINTY Welcome to 1101 Physics Laboratory! This lab...
LAB 1 PROBLEM 1: INTRODUCTION TO MEASUREMENT AND UNCERTAINTY Welcome to 1101 Physics Laboratory! This lab exercise is meant to introduce you to measurement procedures, uncertainties in measurement, and the computer software that you will be using throughout the course. It will be worth your time to read through this entire lab and the next one as there are many helpful tips and references that you may want to use in later labs. PART I—Measurement and Uncertainty You perform quality...
The "best" result is always associated with the measurement with the smallest uncertainty. Measurement B has...
The "best" result is always associated with the measurement with the smallest uncertainty. Measurement B has half the standard uncertainty of measurement A. Therefor e our 68 % coverage probability is associated with a smaller interval (83.44 g o 83.56 g) for measurement B than measurement A (83.38 g to 83.62 g). In other words we have better knowledge about the value of the measurand from measurement B, since we have the same coveroge probability associated with a norrower interval....
10. A student measured the density of copper. In 5 measurements, the density was found to...
10. A student measured the density of copper. In 5 measurements, the density was found to be 8.42 g/cm2, 8.97 g/cm2, 8.54 g/cm, 8.62 g/cm, and 8.33 g/cm. The actual mass of the unknown sample should be 8.96 g/cm2. What would be the accuracy and precision of the measurements? (a) Low accuracy, low precision (b) Low accuracy, high precision (c) High accuracy, low precision (d) High accuracy, High precision (e) Insufficient information is provided. 11. The density of ethanol is...
You and your lab partner are asked to determine the density of an aluminum bar. The...
You and your lab partner are asked to determine the density of an aluminum bar. The mass is known accurately (to four significant figures). You use a simple metric ruler to measure its dimensions and obtain the results for Method A. Your partner uses a precision micrometer and obtains the results for Method B. Method A () Method B () 2.1 2.700 2.2 2.698 2.6 2.702 2.3 5.805 The accepted density of aluminum is 2.702 . Calculate the percent error...
Objective: The aim of this lab is to practice recording measurements with the correct precision. Procedure:...
Objective: The aim of this lab is to practice recording measurements with the correct precision. Procedure: Several stations have been set up in this virtual lab. For each station, click on the measuring tool link, read the directions, and read the measurements according to the directions. Record this measurements with the correct units in the slot in your data table that corresponds to the station number. Remember to estimate to 1 place of uncertainty for each measurement. Then determine the...
PRE-LAB 1. Two metric rulers (shown below) are available to measure the length of the pencil....
PRE-LAB 1. Two metric rulers (shown below) are available to measure the length of the pencil. For each ruler: a. Identify the smallest increment that is marked b. Consider the uncertainty associated with measurements made with that ruler. c. Identify the digit that has to be estimated. d. Record the length of the pencil. e. Identify the number of significant figures in the measurement. Ruler #1 (Top Ruler) Ruler #2 (Bottom Ruler) * os an to Inches inch Smallest increment...
1. When measuring the inner and outer diameters of the hollow block, what were the main...
1. When measuring the inner and outer diameters of the hollow block, what were the main sources of experimental error? Group these errors into those that are systematic and those that are random. 2. How could you improve the measurement of the block diameters? In particular, consider how to improve the accuracy of the average value of diameter and how to reduce the uncertainty in the measurement. 3. To how many significant figures can you state the volume of material...
Please answer ALL parts of these questions and show all work. I will rate my answer....
Please answer ALL parts of these questions and show all work. I
will rate my answer. Thank you!
.
E. Questions Consider the cylinder case. The uncertainty in any one measurement of the density can be determined in the following way. (a) Take the instrumental limit of error associated with the Vernier calipers used to be one-half the least count or smallest measureable increment 8lVernier = 0.001 cm Assume the uncertainty in all linear measurements to be the same and...
Name: Date: CVEN207-Sures2019 In today's laboratory we will learn measurement technigues that will be used in laboratory over the routine calculations. Lastly we will look at how uncertainty relates to measurement, precision and Laboratory # 2 : Measurement and UncertaintyY Introduction semester. We will also examine the use of dimensional analysis and significant figures in performing accuracy. Precision Scientific measurements should be as precise as possible: this means that every measurement will include one uncertain or estimated digit. The number...
Using
the tables answer the question 1, (under questions)
Mass Data and Calculations Table Aluminum Brass Iron M1 (kg) | M2(kg) | M3 (kg) | M4 (kg) | M(kg) | ơn--1 (kg) | 때(kg) 0.0863 00864 0.086 0086 0.08631 1.436,10 .18 l0 02699 0.2699 0.26 0.260 0.2696945830 .2810 Zero Reading of the calipers Length Data and Calculations Table 0.0315 0.0314 0035 0.0349 0.00165 8.250" Aluminum 0.0318 10.0318 | 0.0310|0.0316 |0.0318 |1.633x10"18-16 SUP 00315 0.0315 lo'031S 0,0316 0,0315 ч L0824(1014.12(10 Iron...
The "best" result is always associated with the measurement with the smallest uncertainty. Measurement B has half the standard uncertainty of measurement A. Therefor e our 68 % coverage probability is associated with a smaller interval (83.44 g o 83.56 g) for measurement B than measurement A (83.38 g to 83.62 g). In other words we have better knowledge about the value of the measurand from measurement B, since we have the same coveroge probability associated with a norrower interval....
10. A student measured the density of copper. In 5 measurements, the density was found to be 8.42 g/cm2, 8.97 g/cm2, 8.54 g/cm, 8.62 g/cm, and 8.33 g/cm. The actual mass of the unknown sample should be 8.96 g/cm2. What would be the accuracy and precision of the measurements? (a) Low accuracy, low precision (b) Low accuracy, high precision (c) High accuracy, low precision (d) High accuracy, High precision (e) Insufficient information is provided. 11. The density of ethanol is...
Objective: The aim of this lab is to practice recording measurements with the correct precision. Procedure: Several stations have been set up in this virtual lab. For each station, click on the measuring tool link, read the directions, and read the measurements according to the directions. Record this measurements with the correct units in the slot in your data table that corresponds to the station number. Remember to estimate to 1 place of uncertainty for each measurement. Then determine the...
PRE-LAB 1. Two metric rulers (shown below) are available to measure the length of the pencil. For each ruler: a. Identify the smallest increment that is marked b. Consider the uncertainty associated with measurements made with that ruler. c. Identify the digit that has to be estimated. d. Record the length of the pencil. e. Identify the number of significant figures in the measurement. Ruler #1 (Top Ruler) Ruler #2 (Bottom Ruler) * os an to Inches inch Smallest increment...
Please answer ALL parts of these questions and show all work. I
will rate my answer. Thank you!
.
E. Questions Consider the cylinder case. The uncertainty in any one measurement of the density can be determined in the following way. (a) Take the instrumental limit of error associated with the Vernier calipers used to be one-half the least count or smallest measureable increment 8lVernier = 0.001 cm Assume the uncertainty in all linear measurements to be the same and...
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