Fisica 1

Instructions Experiments

Instruction Manual
No. 012-08777A

Significant Figures Set
ME-9849

Significant Figures Set

Model No. ME-9849

Table of Contents

Introduction. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Activity 1:

The Bull’s Eye Ball Toss . . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Activity 2:

Length Measurements with the False Meter Stick. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Activity 3:

Length Measurements with the True Meter Stick . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Activity 4a:

Length Measurements with the Four-Sided Meter Stick. . . .. . . . . . . . . . . . . . . . . . . . . . . . 9
Activity 4b:

Mass Measurements with Imprecise Labels on a Balance . . . . . . . . . . . . . . . . . . . . . . . . . 11
Activity 5:

Volume Measurements with a Graduated Cylinder . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Activity 6a:

Volume Calculations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . . . . . . . . . . . . . . . 15
Activity 6b:

Density Calculations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Activity 7:

Circumference, Area, and Volume Calculations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Activity 8:

Addition, Subtraction, and Significant Figures . . .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21 Safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23 Technical Support . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23 Copyright and Warranty Information . . . . . . . . . .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

Model No. ME-9849

Significant Figures Set

Significant Figures Set
Model No. ME-9849
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Included Equipment 1. Number line (2) 2. Meter stick label 80 cm/100 div (4) 3. Paper bull’s eye (10) 4. Four-sided Meter stick (4) 5. Balance label 0-10 (10 per sheet) 6. Balance label 10 div(10 per sheet) 7. Data pointer (4) 8. Plastic balls (4) 9. Carbon paper (100 sheets)

Replacement Part Number
646-08756 646-08757 012-08755 SE-8695 012-08758 012-08912 646-08759 699-05120 SE-8693

®

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Significant Figures Set

Introduction

Additional Equipment Required Sample objects: rock, wooden block, shoebox etc. (see activities) Triple-beam Balance Graduated cylinders ofvarying volume Food coloring Large beaker Tape

Model Number

SE-8723 or SE-8707

Introduction
The Significant Figures Set includes a series of activities designed to engage students in the concepts of accuracy and precision. These topics, often neglected or truncated in most curricula, are essential in understanding the basics of scientific measurement. The accuracy of a measurement refers tothe "closeness" of a numerical value to the actual or accepted value. The precision refers to the repeatability of a measurement. The two factors that determine the precision are the measuring instrument and the “measurer,” the person making the measurement. The Significant Figures Set includes a laminated number line and four data pointers for classroom comparisons of measurements. Four brightplastic balls, one hundred sheets of carbon paper and eight paper bull’s eyes are provided for the engaging initial activity. In addition, four four-sided meter sticks, four meter stick labels and two sets of balance labels are included for the discovery of precision and accuracy in scientific measurements. One sheet of balance labels is marked 0 and 10, and the other is marked with 10 equal...