11. (5.0 × 104) × (3.0 × 10−6) =
AA. 1.5 × 10−3
BB. 1.5 × 10−1
CC. 1.5 × 101
DD. 1.5 × 103
EE. 1.5 × 105
Ans: BB
12. 5.0 × 105 + 3.0 × 106 =
AA. 8.0 × 105
BB. 8.0 × 106
CC. 5.3 × 105
DD. 3.5 × 105
EE. 3.5 × 106
Ans: EE
13. (7.0 × 106)/(2.0 × 10−6) =
AA. 3.5 × 10−12
BB. 3.5 × 10−6
CC. 3.5
DD. 3.5 × 106
EE. 3.5 × 1012
Ans: EE
14. The number of significant figures in 0.00150 is:
AA. 2
BB. 3
CC. 4
DD. 5
EE. 6
Ans: BB
15. The number of significant figures in 15.0 is:
AA. 1
BB. 2
CC. 3
DD. 4
EE. 5
Ans: CC
16. 3.2 × 2.7 =
AA. 9
BB. 8
CC. 8.6
DD. 8.64
EE. 8.640
Ans: CC
17. 1.513 + 27.3 =
AA. 29
BB. 28.8
CC. 28.9
DD. 28.81
EE. 28.813
Ans: BB
18. 1 mi is equivalent to 1609 m so 55 mph is:
AA. 15 m/s
BB. 25 m/s
CC. 66 m/s
DD. 88 m/s
EE. 1500 m/s
Ans: BB
19. A sphere with a radius of 1.7 cm has a volume of:
AA. 2.1 × 10−5 m3
BB. 9.1 × 10−4 m3
CC. 3.6 × 10−3 m3
DD. 0.11 m3
EE. 21 m3
Ans: AA
20. A sphere with a radius of 1.7 cm has a surface area of:
AA. 2.1 × 10−5 m2
BB. 9.1 × 10−4 m2
CC. 3.6 × 10−3 m2
DD. 0.11 m2
EE. 36 m2