1) What is the meaning of "accuracy"? a) How close the results are to each other. b) How close the results are to the true value. c) How far the results are from each other. 2) Which diagram shows a precise but inaccurate result? a) b) c) d) 3) What can a scientist do to increase the accuracy of the experiment? Select all the applies. a) Repeat the experiment multiple times. b) Fake the data collected. c) Change the measuring instrument used. d) Use measuring instruments correctly. 4) Human reaction time can cause inaccuracies in stopwatch time recordings. This is an example of a/an __________________? a) Consistent/systematic error b) Unpredictable/random error 5) Which two steps can we take to reduce the inaccuracies from human reaction time? a) Repeat the experiment multiple times. b) Use a more accurate stopwatch. c) Have different people use the same stopwatch. d) Calculate the average of multiple readings. 6) What type of error is represented in the diagram? a) Parallax error b) Zero error 7) Zero errors are a type of consistent error. Which of the following diagram shows a weighing scale with no zero error. a) b) c) 8) A spring balance with no weights attached currently shows 80 g. A weight is then attached to the spring balance. How will the final reading of the spring balance compare to the actual value? a) The reading will be larger than the actual value. b) The reading will be smaller than the actual value.

Accuracy, Precision, and Errors

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