I. What is needed to show the accuratemeasurement of a given quantity?
Answer (1)
Ways to Show Accurate ResultsAppropriate Instruments: Use the right measuring instruments for the specific quantity. For example, a ruler for length, a scale for mass, or a graduated cylinder for volume. Each instrument has a specified range and precision.Calibration of Instruments: Instruments should be calibrated regularly against known standards. It can help in identifying any systematic errors that may arise from the instruments.Understanding Measurement Techniques: Familiarize yourself with the correct techniques for using each instrument. Know how to read measurements accurately, take multiple readings, and average them. It will help reduce errors.Awareness of Errors: Some errors are are consistent and repeatable. They occur due to faulty equipment or biases in measurement. Others occur due to unpredictable fluctuations in the measurement process.Significant Figures: When recording measurements, it is crucial to express them with the correct number of significant figures.Statistical Analysis: For repeated measurements, statistical tools can be used to evaluate accuracy and precision.Percent Error Calculation: The percent error can be calculated to help you see how close your measured value is to the true value. This is done using the formula[tex]\sf Percent\:Error=\bigg(\cfrac{Measured\:Value-True \:Value}{True\:Value}\bigg)\times100[/tex]
