Physics Principles with Applications 7th Edition By Giancoli - Test Bank

,Exam

Name___________________________________


MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question.

1) The current definition of the standard meter of length is based on 1)
A) the distance between the earth's equator and north pole.
B) the distance between the earth and the sun.
C) the length of a particular object kept in France.
D) the distance traveled by light in a vacuum.

2) The current definition of the standard second of time is based on 2)
A) the duration of one year.
B) the earth's rotation rate.
C) the frequency of radiation emitted by cesium atoms.
D) the oscillation of a particular pendulum kept in France.

3) The current definition of the standard kilogram of mass is based on 3)
A) the mass a particular object kept in France.
B) the mass of the earth.
C) the mass of a cesium-133 atom.
D) the mass of the sun.

4) If a woman weighs 125 lb, her mass expressed in kilograms is x kg, where x is 4)
A) greater than 125. B) less than 125.

5) If a tree is 15 m tall, its height expressed in feet is x ft, where x is 5)
A) greater than 15. B) less than 15.

6) If a flower is 6.5 cm wide, its width expressed in millimeters is x mm, where x is 6)
A) greater than 6.5. B) less than 6.5.

7) If an operatic aria lasts for 5.75 min, its length expressed in seconds is x s, where x is 7)
A) greater than 5.75. B) less than 5.75.

8) Scientists use the metric system chiefly because it is more accurate than the English system. 8)
A) True B) False

9) When adding two numbers, the number of significant figures in the sum is equal to the number of 9)
significant figures in the least accurate of the numbers being added.
A) True B) False

10) When determining the number of significant figures in a number, zeroes to the left of the decimal 10)
point are never counted.
A) True B) False


11) Convert 1.2 × 10 -3 to decimal notation. 11)
A) 1.200 B) 0.1200 C) 0.0120 D) 0.0012 E) 0.00012



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,12) Write out the number 7.35 × 10 -5 in full with a decimal point and correct number of zeros. 12)
A) 0.00000735
B) 0.0000735
C) 0.000735
D) 0.00735
E) 0.0735

13) 0.0001776 can also be expressed as 13)
A) 1.776 × 10 -3 .
B) 1.776 × 10 -4 .
C) 17.72 × 10 4 .
D) 1772 × 105 .
E) 177.2 × 10 7 .


14) 0.00325 × 10 -8 cm can also be expressed in mm as 14)
A) 3.25 × 10 -12 mm.
B) 3.25 × 10 -11 mm.
C) 3.25 × 10 -10 mm.
D) 3.25 × 10 -9 mm.
E) 3.25 × 10 -8 mm.

15) If, in a parallel universe, π has the value 3.14149, express π in that universe to four significant 15)
figures.
A) 3.141 B) 3.142 C) 3.1415 D) 3.1414

16) The number 0.003010 has 16)
A) 7 significant figures. B) 6 significant figures.
C) 4 significant figures. D) 2 significant figures.

0.674
17) What is to the proper number of significant figures? 17)
0.74
A) 0.9 B) 0.911 C) 0.9108 D) 0.91


18) What is the value of π(8.104)2 , written with the correct number of significant figures? 18)
A) 206.324 B) 206.323 C) 206.3 D) 206 E) 200

19) What is the sum of 1123 and 10.3 written with the correct number of significant figures? 19)
A) 1.13 × 10 3 B) 1133.3 C) 1.1 × 10 3 D) 1133.3000 E) 1133

20) What is the sum of 1.53 + 2.786 + 3.3 written with the correct number of significant figures? 20)
A) 8 B) 7.6 C) 7.62 D) 7.616 E) 7.6160

21) What is the difference between 103.5 and 102.24 written with the correct number of significant 21)
figures?
A) 1 B) 1.3 C) 1.26 D) 1.260 E) 1.2600

22) What is the product of 11.24 and 1.95 written with the correct number of significant figures? 22)
A) 22 B) 21.9 C) 21.92 D) 21.918 E) 21.9180


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, 23) What is the result of 1.58 ÷ 3.793 written with the correct number of significant figures? 23)
A) 4.2 × 10-1
B) 4 × 10-1
C) 4.166 × 10-1
D) 4.1656 × 10-1
E) 4.17 × 10-1

24) What is 34 + (3) × (1.2465) written with the correct number of significant figures? 24)
A) 37.74 B) 37.7395 C) 4 × 10 1 D) 38 E) 37.7

25) What is 56 + (32.00)/(1.2465 + 3.45) written with the correct number of significant figures? 25)
A) 62.812
B) 62.81
C) 62.8
D) 62.8123846
E) 63

26) Add 3685 g and 66.8 kg and express your answer in milligrams (mg). 26)
A) 7.05 × 10 4 mg B) 7.05 × 10 6 mg C) 7.05 × 10 5 mg D) 7.05 × 10 7 mg


27) Express (4.3 × 10 6)-1/2 in scientific notation. 27)
A) 2.1 × 10 -5 B) 4.8 × 10 -4 C) 2.1 × 10 4 D) 2.1 × 10 3


28) What is 0.2052/3 , expressed to the proper number of significant figures? 28)
A) 0.348 B) 0.3477 C) 0.3 D) 0.35

29) The length and width of a rectangle are 1.125 m and 0.606 m, respectively. Multiplying, your 29)
calculator gives the product as 0.68175. Rounding properly to the correct number of significant
figures, the area should be written as
A) 0.7 m 2 .
B) 0.68 m2 .
C) 0.682 m2 .
D) 0.6818 m 2 .
E) 0.68175 m 2 .

30) The following exact conversion equivalents are given: 1 m = 100 cm , 1 in = 2.54 cm, and 30)
1 ft = 12 in. If a computer screen has an area of 1.27 ft 2 , this area is closest to
A) 0.284 m 2 .
B) 0.0465 m 2 .
C) 4.65 m 2.
D) 0.118 m 2 .
E) 0.00284 m 2 .

31) In addition to 1 m = 39.37 in., the following exact conversion equivalents are given: 31)
1 mile = 5280 ft , 1 ft = 12 in , 1 hour = 60 min, and 1 min = 60 s. If a particle has a velocity of 8.4
miles per hour,its velocity, in m/s, is closest to
A) 4.5 m/s. B) 3.0 m/s. C) 3.8 m/s. D) 3.4 m/s. E) 4.1 m/s.


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