Answer:
1. Identify the SI unit(s) that would be most appropriate for measuring each of the following:
A) the length of a new pencil (cm)
B) the width of your classroom (m)
C) the length of your arm (cm)
D) the diameter of pencil lead (mm)
2. Identify the SI unit(s) that would be most appropriate for massing each of the following:
A) a person (kg)
B) a banana ( g)
C) your daily vitamin tablet (mg)
D) a pencil (g)
3. Identify the SI unit(s) that would be most appropriate for measuring each of the following:
A) a glass of milk (mL)
B) the amount of water required to fill a glass of water (mL)
(C) a dose of cough syrup (mL)
(D) a truckload of sand (m³)
4. Rank the measurements within each set from largest to smallest:
(A) 1.2m, 750cm, 0.005km, 65dm, and 2000mm
65 dm, 750 cm, 0.005km, 2000 mm; 1.2 m
B) 450mg, 3.8cg, 0.27dg, 0.50g, and 0.00047kg
0.27 dg, 0.50 g, 0.0047 kg, 450 mg, 3.8 cg
c.) 2.5L, 22cL, 13dL, 870mL, and 175cm3
13dL, 2.5L, 870 mL, 22cL, 0.175 L
Explanation:
The International System of Units is inherited from the old decimal metric system. One of the main characteristics is that the units are based on physical phenomena. The units of the S.I. they are the reference for the indications of the measuring instruments, and are found by means of calibrations. The International System of Units has seven basic units, called fundamental units. By combining the basic units the other units are obtained, called units derived from the International System.
