Experimental Errors, Graphs and Data Analysis 9. Define the systematic error, ra

Question

Experimental Errors, Graphs and Data Analysis 9. Define the systematic error, random error and human error. Give an example of each. (10 points) 10. Below is a table representing the results of experiment to measure the kinctic energy, KE, of a 50- kg object moving from rest (initial velocity is zero). The KE is measured in joules (J) and the velocity, V, is measured in meters/seconds (m/s) 0 6 7 7 10 (m/s) KE 0 25 100 225 400 625 900 1225 2500 Perform the following (using excel is preferred): 1. Plot a scatter graph of KE versus V. Draw a curve fit for the scattered data 2. Plot a scatter graph of KE versus V2. Draw a line fit for the scattered data and find the slope, y-intercept and the equation of the line and record below (including the units). Show how is the value of slope related to the mass of the object? 3. Slope= Y-intercept= Equation:

Explanation / Answer

9.

Systemic errors: These are the errors in experimental observations due to instruments used to take measurements.

Example: Improper handling of the instrument/s

Random errors: These are the errors in experimental observations come due to unknown or unpredictable changes in the instruments used to take measurements.

Example: Electrical noise in the circuit of instrument

Human error: These are the errors which are caused by unplanned actions by human beings during measurements, taking observation of data handling

Example: wrong observation taken during the experiment

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