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-example.htmlPercentage difference -difference between two values divided by the average ofthe two values shown as a percentageSource:Precisionis the closeness of the values to each otherSource: Discover Science Physics by David et.al, p. 13Uncertaintyusually described as an error in measurementSource:Multiple Choice Test.Read and answer the following questions. Write the letter ofyour answer in your paper.1. Three different people weigh a standard mass of 2.00 g on the same balance.Eachperson obtains a reading of exactly 7.32 g for the mass of the standard. Theseresults imply that the balance that was used is:A. accurate but not preciseC. neither accurate nor preciseB. precise but not accurateD. both accurate and preciseIV. Pre -TestIV. Pre -Test
2. The closeness of a measurement to its true value is a measure of its:
3. Systematic errors occur due to
4. A measurement which on repetition gives same or nearly same result is called
5. Errors that occur during measurement of the quantities are ofA. 2 typesC. 4 typesB. 3 typesD. 5 types
5These two circles represent the dart boards and the dots represent the bulls-eyes.Procedure:1. Play dart game.2.Use markers to serve as your darts and try to hit the bulls-eye using markers.3.Try it for five (5) times.4.Mark the areas in the circle where you hit. Do these on both circles.V. Learning ActivitiesABV. Learning ActivitiesDirections: Get a dart board if you have in yourhouse, if none, draw in a two (2) whole bondpaper two big circles with a dot in the center asillustrated below.ELICITActivity 1:Let’s play Dart!ENGAGEActivity 2: Look and Find!Directions: In yourModule Notebook,answerthe following questions based on Activity 1.(Donot write anything on your module.)What can you observe from the two circles you hit?Describe the position of the marks in all five (5)attempts and compare it with one another.What circle shows accuracy through the marks hitby the markers?What circle shows precision?
6Directions: Tell whether the situations beloware accurate, precise, accurate but notprecise, precise but not accurate or neitheraccurate nor precise. Write your answer onyourModule Notebook.(Do not writeanything on your module.)Accuracy and PrecisionSource:Based on the above illustrations shown, accuracy is described as the closenessof the thrown darts to the target, which is the bulls-eye. The closer the darts are to thebulls-eye, the more accurate they are. Precision, on the other hand, is the closenessof the darts to each other, regardless of the accuracy. The nearer the darts are to each

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David et al