Midterm Exam, March 2018 Anontal Methods California State University, Los Angele
ID: 1767171 • Letter: M
Question
Midterm Exam, March 2018 Anontal Methods California State University, Los Angeles College of Engineering, Computer Science, and Technology Full name: CIN: Email: Question 2(5 marks out of 100)-Consistent and repeatable error which will e the same each time, if the measurement is repeated multiple times is called .. a) Random error b) Linearity error c) Systematic error d) Zero error Question 3(10 marks out of 100)-Determine of the following errors are Systematic or Random. justify your response too: effect of magnetic field in the lab room on measuring electrical current effect of incomplete calibration of a force plate . nor Question 4 15 marks out of 100-Which statement regarding the accuracy andor precision is a) The closeness of agreement between a measured value and true vate is b) Precision describes the random errer c) A precise measuring system d) Accuracy is an indicator of uncertainty called Accuracy correct would necessarily be accurate 01Explanation / Answer
2. Consistant and repeatable error assosciated with an instrument is called systematic error. These errors are caused because of incorrect calibration of instruments and these errors repeates at regular interval of time.
3. Random error is the error associated with effect of magnetic field in labroom on measuring electric current. Because here the presence of magnetic field influences the measurement of electric current. This error rises due to the inability of the experimeneter to take measurement in the exact same way to get the exact same value.
Systematic error is associated with the incomplete calibration of a force plate. These errors are caused because of incorrect calibration of instruments and these errors repeates at regular interval of time.
4.A precise measuring system would necessarily be accurate.
PRECISION IS INDEPENDENT OF ACCUARY