Answer Key for Quizzes:

Quiz 1:

1-Two Sig Fig: 1.7 10+1, 5.9 10+3, 0.0018

Three Sig. Fig. 17.2, 5.89 10+3, 0.00176

Four Sig. Fig. 17.25, 5.891 10+3, 0.001757

2- 5.10, 1.89 10+3, 0.00112

3- 9,9,1

5,4,0

4- a) most sig.b) precise c) accurate d) random error or uncertainty e) length

f) systematic, random g) random

5- 0.8%

6-( 8.438+-0.045) cm

7-3.02 1.82

0.76 3.0 10-3

202 0.144

8- 2.86+-0.01 cm

9- 2.63 cm 8.38 cm

6.70 cm 7.53 cm

Quiz 2:

1 through 10 d,b,e,e,a,b,a,c,d,c,

11-e,d,b,c,a,

16- 4,2,5,3,1

17- A____B) 1,5 C)3,4

18-21: a,b,a,b

Quiz 3

(Monday):

b,d,c,b,d,b,c,b,c,d,c,a,a,a,a,d,c,b,c,d,b,a

Tuesday:

a,e,a,a,d,a,d,a,b,c,c,c,a,a,c,d,b,c,c,b,b,d

END_________________