Unit 1 Homework A...pdf - Troy High School

11. (3.33 x 10 5 ) 4 x (3.75 x 10 6 ) 3 = 6.48 x 10 41
12. 5.55 x 10 !18
3
x (4.44 x 10 14 ) 4 x (3.95 x 10 !22 ) 2 1.07 x 10 10
13. (a) (1.28 x 1012 ) 5
(8.85 x 10 15 ) = (b) (4.98 x 1012 ) 2 x (5.55 x 10 5 ) 4
= 3 (6.76 x 10 !11 ) 3 (a) 4.96 x 10 12 (b) 7.62 x 10 28
========= METRIC HOMEWORK ANSWERS =================
1. Give the symbol and multiplier for each of the following metric prefixes:
(a) kilo = k 1000 (b) centi = c 10 -2 (c) hecto = h 10 2 (d) deka = da 10 1
(e) Mega = M 10 6 (f) nano = n 10 -9 (g) milli = m 10 -3 (h) Giga = G 10 9
(i) micro = µ 10 -6 (j) Tera = M 10 6 (k) deci = d 10 -1 (l) pico = p 10 -12
2. Give the name of each of these units, and show how many of the base unit it is:
(a) cm= centimeter 0.01m (b) Mg = Megagram (c) ns= nanosecond 10 -9 s (d) dg= decigram 10 -1 g
(e) kg = kilogram 1000 m (f) ps=picosecond 10 -12 s (g) hm=hectometer 100 m (h) Gm=Gigameter 10 9 m
(i) µg= microgram 10 -6 g (j) µL = microliter 10 -6 L (k) dam = dekameter 10 m (l) nL= nanoliter 10 -9 s
3. Circle the larger unit: (a) pound - kilogram (b) liter - gallon
(c) quart - liter (d) meter - yard (e) mile - kilometer
(f) nanometer - Angstrom (g) micron = micrometer (h) English ton-Metric ton
4. What word and symbol prefixes indicate the following multipliers?
(a) 10 -6 = µ micro (b) 10 3 = k kilo (c) 10 -9 = n nano (d) 10 12 = T Tera
(e) 10 -1 = d deci (f) 10 9 = G Giga (g) 10 -3 = m milli (h) 10 2 = h hecto
(i) 10 6 = M Mega (j) 10 -2 = c centi (k) 10 1 = da deka (l) 10 -12 = c pico
5. (a) 1m = 1000 mm 1mm = 0.001 m 1nm = 10 -9 m 1 m = 10 9 nm
(b) 1 cm = 0.01 m 100 cm = 1.00 m 1,000 g = 1 kg 10 -6 g = 1 µg
(c) 1 hm = 100 m 10 m = 1 dam 1,000 L = 1 kL 1 dm = 0.1 m
(d) 1 km = 1000 m 1 mW = 0.001 W 1 ns = 10 9 s 10 6 g = 1 Mg
(e) 1 µL = 10 -6 L 1 L = 10 6 µL 1 dam = 10 m 1m = 0.1 dam
6. Fill in the blank with the missing unit:
(a) 3.2 x 10 -6 g = 3.2 µg (b) 8.8 s = 8.8 x 10 9 ns (c)125 cm = 1.25 m
(d) 5.7 x 10 -3 L = 5.7 mL (e) 1.23 x 10 -12 m =1.23 A (e) 16 m = .16 hm
(f) 5.3 x 10 -3 m = 5.3 mm (g) 0.0055 kg = 5.5 g (h) 55 nm = 550 µm
7. Convert: (a) 4.94 kg = 4.94 x 10 3 g (b) 178 mL = 0.178 L (c) 6.50 m = 6.50 x 10 2 cm
(d) 82 ms = 8.2 x 10 4 µs (e) 27.5 pm = 0.0275 nm (f) 0.000055 km = 55 mm
8. Convert: (a) 125 dm = 1.25 x 10 3 cm (b) 0.055 kg = 5.5 x 10 4 mg
(c) 125,000 L = 0.125 ML
(d) 0.01733 L = 17.33 mL
(e) 45 mL = 45 cm 3 (f) 12.5 hm = 1.25 x 10 12 nm
(g) 3.4 x 10 6 µg = 3.4 x 10 -3 kg (h) 0.0033 kL = 0.33 daL
(j) 56.5 ns = 5.65 x 10 -5 ms (k) 2.2 x 10 -4 Mg = 2.2 x 10 8 µg
9. Circle the smallest? Underline the largest: (a) 0.000055 m (b) 0.000567 cm
all converted to meters: (a) 5.5 x 10 -5 (b) 5.67 x 10 -6
(c) 6.5 nm (d) 123,255 pm (e) 4.7 x 10 -8 km (f) 0.005 mm (g) .48 µm
(c) 6.5 x 10 -9 (d) 1.23255 x 10 -7 (e) 4.7 x 10 -5 (f) 5 x 10 -6 (g) 4.8 x 10 -7
=== Dimensional Analysis Homework Answers ===
Answers: 1 . 8.95 m 2. 1.04 x 10 7 m 2 3. 24.6 m/s 4. 5.36 L 5. 7.27 g/cm 3
6. 3.60 x 10 12 ns 7. $59.14 8. (a) 99.1 L (b) 218 lb 9. 2.22 x 10 4 furlongs/fortnight
10. 3.96 x 10 25 atoms 11. 121 mm 12. 0.175 km
13. $6,904 (Wow! No wonder Hummer rhymes with dumber)