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

MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question.1) A weight lifter can bench press How many milligrams (mg) is this?

1) _______

• 1.71 × 108 mg
• 1.71 × 109 mg
• 1.71 × 107 mg
• 1.71 × 106 mg

2) What is 56 + (32.00)/(1.2465 + 3.45) written with the correct number of significant figures?

2) _______

A) 62.8

B) 63

C) 62.8123846

D) 62.812

E) 62.81

3) Estimate the number of pennies that would fit in a box one foot long by one foot wide by one foot tall.

3) _______

A)

• x

B)

• ×

C)

• ×

D)

• ×

E)

• ×

4) How many nanoseconds does it take for a computer to perform one calculation if it performs calculations per second?

4) _______

• 15 ns B) 67 ns C) 65 ns D) 11 ns

5) A marathon is and long. Estimate how many strides would be required to run a marathon. Assume a reasonable value for the average number of

5) _______

• 4.5 × 106 strides
• 4.5 × 105 strides
• 4.5 × 103 strides
• 4.5 × 104 strides

6) The shortest wavelength of visible light is approximately 400 nm. Express this wavelength in centimeters.

6) _______

• 4 × 10-11 cm
• 4 × 10-9 cm
• 400 × 10-11 cm
• 4 × 10-5 cm
• 4 × 10-7 cm

7) When determining the number of significant figures in a number, zeroes to the left of the decimal point are never counted.

7) _______

• True B) False

8) The mass of a typical adult woman is closest to 8) _______

• 75 kg. B) 35 kg. C) 150 kg. D) 20 kg.

9) If a tree is 15 m tall, its height expressed in feet is x ft, where x is 9) _______

• less than 15. B) greater than 15.

10) The wavelength of a certain laser is where

Chapter 1 (Essential University Physics (Volume 1) 3e Richard Wolfson) (Test Bank, For Complete File, Download link at the end of this File) (Answer at the end of each Chapter) 1 / 3

Expres s this wavele ngth in nanom eters.

10) ___

___

• 3.5 × 103 nm
• 3.5 × 102 nm
• 3.5 × 104 nm
• 3.5 × 101 nm

11) Add and and express your answer in milligrams (mg).

11) ______

• 7.05 × 105 mg
• 7.05 × 106 mg
• 7.05 × 104 mg
• 7.05 × 107 mg

12) The period of a pendulum is the time it takes the pendulum to swing back and forth once. If the only dimensional quantities that the period depends on are the acceleration of gravity, g, and the length of the pendulum, ℓ, what combination of g and ℓ must the period be proportional to? (Acceleration has SI units of m ∙ s-2.).

12) ______

• g/ℓ B) gℓ C)

D)

• gℓ2

13) Convert 1.2 × 10-3 to decimal notation.

13) ______

A) 1.200 B) 0.1200 C) 0.0120 D) 0.0012 E) 0.00012

14) 0.0001776 can also be expressed as 14) ______

A) 1.776 × 10-3.

B) 1.776 × 10-4.

C) 17.72 × 104.

D)

1772 × .

E) 177.2 × 107.

15) The exhaust fan on a typical kitchen stove pulls 600 CFM (cubic feet per minute) through the filter. Given that 1.00 in. = 2.54 cm, how many cubic meters per second does this fan pull?

15) ______

A) 0.328

m3/sec

• 32.8 m3/sec
• 3.05 m3/sec

D) 0.283

m3/sec

16) What is the result of 1.58 ÷ 3.793 written with the correct number of significant figures? 16) ______ A)

4.1656 ×

B)

• ×

C)

4.17 ×

D)

4.166 ×

E)

4.2 ×

17) If an operatic aria lasts for 5.75 min, its length expressed in seconds is x s, where x is 17) ______

• less than 5.75. B) greater than 5.75.

18) What is the sum of 1.53 + 2.786 + 3.3 written with the correct number of significant figures?

18) ______ 2 / 3

A) 8 B) 7.6 C) 7.62 D) 7.616 E) 7.6160

19) What is to the proper number of significant figures?

19) ______

A) 0.9108 B) 0.911 C) 0.91 D) 0.9

20) Approximately how many times does an average human heart beat in a lifetime? 20) ______ A)

• ×

B) 3 ×

C) 3 ×

D)

• ×

E)

• ×

21) If a flower is 6.5 cm wide, its width expressed in millimeters is x mm, where x is 21) ______

• less than 6.5. B) greater than 6.5.

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

23) 0.00325 × 10-8 cm can also be expressed in mm as

23) ______

• 3.25 × 10-12 mm.
• 3.25 × 10-11 mm.
• 3.25 × 10-10 mm.
• 3.25 × 10-9 mm.
• 3.25 × 10-8 mm.

24) Scientists use the metric system chiefly because it is more accurate than the English system.

24) ______

• True B) False

25) If, in a parallel universe, π has the value 3.14149, express π in that universe to four significant figures.

25) ______

A) 3.141 B) 3.142 C) 3.1415 D) 3.1414

26) When adding two numbers, the number of significant figures in the sum is equal to the number of significant figures in the least accurate of the numbers being added.

26) ______

• True B) False

27) Convert a speed of 4.50 km/h to units of ft/min. (1.00 m = 3.28 ft) 27) ______

• 0.246 ft/min
• 246 ft/min
• 886 ft/min
• 82.3 ft/min
• 165 ft/min

28) What is 34 + (3) × (1.2465) written with the correct number of significant figures? 28) ______

A) 37.7 B) 37.74 C) 38 D) 37.7395 E) 4 × 101

29) A plot of land contains How many square meters does it contain?

29) ______

• 7.1 ×
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