EXPERIMENT 3 SECTION DATE PRELABORATORY ASSIGNMENT I. Provide the key term that
ID: 569361 • Letter: E
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EXPERIMENT 3 SECTION DATE PRELABORATORY ASSIGNMENT I. Provide the key term that corresponds to each of the following definitions. (a) a decimal system of measurement using prefixes and a basic unit to express length, mass, and volume (b) a metric unit of length (c) a metric unit of mass (d) a metric unit of volume (e) the clear lens at the surface of a liquid inside a graduated cylinder () the degree of inexactness in an instrumental measurement Key Terms: centimeter (cm), gram (g), meniscus, metric system, milliliter (mL), uncertainty State the length measurement indicated on each of the following metric rulers. RECTANGULAR SOLID 2. 0 1 234 5 6 78 9 10 11 12 13 14 5 MAGNESIUM RIBBON 0 1 2 3 4 5 67 8 9 10 11 12 13 14 15 A rectangular solid measures 5.0 cm by 2.5 cm by 1.5 cm. Refer to Example Exercise 2.3 and show the calculation for volume of the rectangular solid. 3. State the length measurement indicated on each of the following metric rulers. COPPER WIRE 4. 0 1 2 3 4 5 6 7 89 10 GLASS TUBING 12 13 14 15 0 1 23 4 5 6 7 8 9 10 11 12 13 14 15 Answers in Appendix J Copyright © 2013 Pearson Education Instrumental Measurements :Explanation / Answer
1.a. Metric system is decimal system of measurement using perfixes and basic units of length , mass and volume.
b.Centimeter is metric unit of length
c. Gram (g) is metric unit of mass
d. Millilitre is metric unit of volume.
e. meniscus: the clear lense at the surface of the liquid inside graduated sylinder.
f: uncertainity: inexactness in measurments.
2. 9 grams, becasue it is solid and has to measure the mass in grams.
14 centimeters it is measure of length ribbon.
3. volume of rectangle= width*height*broad= 5*2.5*1.5= 18.75 cubic centimeter or cm3
4. copper wire 7.2 centimeters.
glass tubing 10 cm.
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