Homework Help is Here – Start Your Trial Now!
Science
Chemistry
Student A measures an object and records a value of 1.5 cm. Student B measures the same object and records a value of 1.50 cm. They have both done their measurements correctly. Why do these measurements differ

Student A measures an object and records a value of 1.5 cm. Student B measures the same object and records a value of 1.50 cm. They have both done their measurements correctly. Why do these measurements differ

Chemistry
Chemistry
10th Edition
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
Section: Chapter Questions
Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
See similar textbooks
icon
Related questions
Question
100%
Student A measures an object and records a value of 1.5 cm. Student B measures the same object and records a value of 1.50 cm. They have both done their measurements correctly. Why do these measurements differ?
### Measurement Accuracy and Precision In this example, we examine the measurements taken by two students to understand the concepts of accuracy and precision in measurement: **Problem Statement:** 1. **Scenario:** - Student A measures an object and records a value of 1.5 cm. - Student B measures the same object and records a value of 1.50 cm. Both students have performed their measurements correctly. Why do these measurements differ? **Multiple Choice Answers:** a. They aren't different. b. Person A used a ruler with markings every 0.1 cm. Person B used a ruler with markings every 0.01 cm. c. Person A used a ruler with markings every 1 cm. Person B used a ruler with markings every 0.1 cm. d. Person A rounded their measurement. **Correct Answer:** d. Person A rounded their measurement. ### Explanation: The difference in measurements arises from how the precision of the measurements is recorded: - **Student A's Measurement (1.5 cm):** - Rounded measurement. - Indicates that the measurement was rounded to the nearest tenth of a centimeter (0.1 cm). - **Student B's Measurement (1.50 cm):** - More precise. - Measurement is to the nearest hundredth of a centimeter (0.01 cm). In science and engineering, the precision of a measurement often includes all known digits plus one estimated digit. Hence, it's essential to be aware of the precision and accuracy of the instruments being used and to record measurements accordingly.
Transcribed Image Text:### Measurement Accuracy and Precision In this example, we examine the measurements taken by two students to understand the concepts of accuracy and precision in measurement: **Problem Statement:** 1. **Scenario:** - Student A measures an object and records a value of 1.5 cm. - Student B measures the same object and records a value of 1.50 cm. Both students have performed their measurements correctly. Why do these measurements differ? **Multiple Choice Answers:** a. They aren't different. b. Person A used a ruler with markings every 0.1 cm. Person B used a ruler with markings every 0.01 cm. c. Person A used a ruler with markings every 1 cm. Person B used a ruler with markings every 0.1 cm. d. Person A rounded their measurement. **Correct Answer:** d. Person A rounded their measurement. ### Explanation: The difference in measurements arises from how the precision of the measurements is recorded: - **Student A's Measurement (1.5 cm):** - Rounded measurement. - Indicates that the measurement was rounded to the nearest tenth of a centimeter (0.1 cm). - **Student B's Measurement (1.50 cm):** - More precise. - Measurement is to the nearest hundredth of a centimeter (0.01 cm). In science and engineering, the precision of a measurement often includes all known digits plus one estimated digit. Hence, it's essential to be aware of the precision and accuracy of the instruments being used and to record measurements accordingly.
Expert Solution
trending now

Trending now

This is a popular solution!

steps

Step by step

Solved in 3 steps

SEE SOLUTIONCheck out a sample Q&A here
Blurred answer
Knowledge Booster
Measurement
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, chemistry and related others by exploring similar questions and additional content below.
Similar questions
Recommended textbooks for you
Chemistry
Chemistry
Chemistry
ISBN:
9781305957404
Author:
Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:
Cengage Learning
Chemistry
Chemistry
Chemistry
ISBN:
9781259911156
Author:
Raymond Chang Dr., Jason Overby Professor
Publisher:
McGraw-Hill Education
Principles of Instrumental Analysis
Principles of Instrumental Analysis
Chemistry
ISBN:
9781305577213
Author:
Douglas A. Skoog, F. James Holler, Stanley R. Crouch
Publisher:
Cengage Learning
Organic Chemistry
Organic Chemistry
Chemistry
ISBN:
9780078021558
Author:
Janice Gorzynski Smith Dr.
Publisher:
McGraw-Hill Education
Chemistry: Principles and Reactions
Chemistry: Principles and Reactions
Chemistry
ISBN:
9781305079373
Author:
William L. Masterton, Cecile N. Hurley
Publisher:
Cengage Learning
Elementary Principles of Chemical Processes, Bind…
Elementary Principles of Chemical Processes, Bind…
Chemistry
ISBN:
9781118431221
Author:
Richard M. Felder, Ronald W. Rousseau, Lisa G. Bullard
Publisher:
WILEY
SEE MORE TEXTBOOKS