Lesson: Measurement Error Physics • 9th Grade
In this lesson, we will learn how to define and calculate the absolute and relative errors of measured values.
Sample Question Videos
In an experiment, the speed of sound waves on Earth at sea level at a temperature of is 333 m/s. Find the percent relative error in the measurement using an accepted value of 344 m/s. Give your answer to one decimal place.
Which of the following is the correct formula for the value of the relative error of the measurement given the accepted value, , and the absolute error, ?
An experimental apparatus for measuring the acceleration due to gravity produces an absolute error of 0.05 m/s2. The apparatus is used on two different planets. One planet has an accepted value for its gravitational acceleration of 3.72 m/s2 and the other has an accepted value for its gravitational acceleration of 8.87 m/s2. Find the difference between the percent relative errors of the measurements of gravitational acceleration made by the apparatus on the two planets. Give your answer to one decimal place.