Pre-lab Assigament: Measurements and Density . What are the two factors of a mea

Question

Pre-lab Assigament: Measurements and Density . What are the two factors of a measurement? 2 What is the SI basic unit foe length? Give the name and symbol. . What is the SI basic unit foe mass? Give the name and symbol. 4. What is the S1 basic unit for velume? Give the name and symbol. Example: Convert 100 foet (t) to centimeters (cm) Given: 100 ft. I -12in. l in-2.54 cm Solution: ft is cancelled; in is also cancelled leaving em as the final unit . Perform the following conversions Show work 255 in 369 c m 15.78 emin 43.92 LL 55.8k 69,35 m 6. What is the function of the TARE buttoe on an electroeic balance? 7, What is the equation for density? 8. Define each term in the equation foe density 9. You obtain the following demsities: 1445 gml15.89 gml, and 13.,99 gml. What is the avcrage density 10. Using the following oquation: V-4/3r ,what is the volume of a marble if you have a diameter of 4.5 cm

Explanation / Answer

1. Two factors of measurement are qualitative and quantitative. for example, In 100 Feet, 100 is the quantity and feet is the qualitative measurement. Qualitatively,Measurement can be done in two ways: SI (International Systems) units and C.g.s units.

2. Length is the distance between two points. S.I. units of length is meter and its symbol is m. A meter is the length of the path travelled by light in vaccum during a time travel of 1/299, 792, 458 s.

3. Mass is the amount of matter. Its S.I. units are kilogram and its symbol is kg. It is equal to the mass of the international prototype of the kilogram, kept at the International Bureau of Weights and Measures.

4. Volume is the space covered by something. Its S.I. units are cubic meter and its symbol is m3.

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