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Ch 2 Semester 1 Exam Review

Total questions: 93

Worksheet time: 47mins

Name
Class
Date
1.

Numbers are usually written so that the uncertainty is in the last reported digit.

a)

True

b)

False

2.

The decimal number 0.0000010 expressed in scientific notation is 1.0 × 10^6.

a)

True

b)

False

3.

The decimal number 0.0210 expressed in scientific notation is 2.10 × 10^-2.

a)

True

b)

False

4.

The mass of an object, 4.55 × 10^-3 g, expressed in decimal notation is 0.000455 g.

a)

True

b)

False

5.

If you count 7 pennies, you can only report one significant figure in that measurement.

a)

True

b)

False

6.

Exact numbers have an unlimited number of significant figures.

a)

True

b)

False

7.

Zeros located between two numbers are not significant.

a)

True

b)

False

8.

Zeros located after a number and after a decimal point are significant.

a)

True

b)

False

9.

Trailing zeros at the end of a number, but before an implied decimal point, are ambiguous.

a)

True

b)

False

10.

Trailing zeros before a decimal point but after a non-zero number are considered significant figures.

a)

True

b)

False

11.

The number 0.010100 has five significant figures.

a)

True

b)

False

12.

The number 4,450,000.0 has 3 significant figures.

a)

True

b)

False

13.

The number 7.20 × 10^3 contains three significant figures.

a)

True

b)

False

14.

When the temperature of an object is reported as 23.7°C, the actual temperature can be assumed to be between 23.6°C and 23.8°C.

a)

True

b)

False

15.

Scientific numbers are reported so that every digit is certain except the last, which is estimated.

a)

True

b)

False

16.

When the number 65.59 is rounded to contain 2 significant figures, it becomes 66.0.

a)

True

b)

False

17.

When the number 2.35 is rounded to contain 2 significant figures it becomes 2.4.

a)

True

b)

False

18.

In multiplication and division calculations, the answer will have the same number of decimal places as the number carrying the fewest decimal places.

a)

True

b)

False

19.

In multiplication or division calculations, the answer will have the same number of decimal places as the number carrying the most decimal places.

a)

True

b)

False

20.

In addition or subtraction, the result carries the same number of decimal places as the quantity carrying the fewest decimal places.

a)

True

b)

False

21.

The mass of an object depends on gravity.

a)

True

b)

False

22.

The base unit of length in the SI system is the cm.

a)

True

b)

False

23.

The base unit of mass in the SI system is the kg.

a)

True

b)

False

24.

The prefix nano represents the multiplier 0.000000001.

a)

True

b)

False

25.

The prefix micro represents the multiplier 0.001.

a)

True

b)

False

26.

A nine gigagram mass is heavier than a nine nanogram mass.

a)

True

b)

False

27.

The prefix in the name of a polygon indicates how many sides this geometric figure has, so a "decagon" would have ten sides.

a)

True

b)

False

28.

There are 1000 kilometers in one meter.

a)

True

b)

False

29.

You do not need to write units in calculations as long as you can remember them.

a)

True

b)

False

30.

Conversion factors are constructed from any two quantities known to be equivalent.

a)

True

b)

False

31.

A conversion factor is a fraction with one unit on top and a different unit on the bottom.

a)

True

b)

False

32.

A solution map diagrams the steps required to get from the starting point to the end point of a calculation problem.

a)

True

b)

False

33.

A solution map is the section near the back of the textbook that provides the answers to assigned problems.

a)

True

b)

False

34.

One mile measures 5,280 feet long, so one square mile is equivalent to 5,280 square feet.

a)

True

b)

False

35.

Given that 1 inch equals 2.54 centimeters, then 1 cubic inch equals 16.387 cubic centimeters.

a)

True

b)

False

36.

All solids have the same density.

a)

True

b)

False

37.

Suppose a symmetrical metal rod of the element lead has a density of 11.4 g/cm^3. If this rod is cut in half, the density of each piece is now 5.7

a)

True

b)

False

38.

If you are given the mass and density of an object, you can calculate the volume by using the equation: V = m/d.

a)

True

b)

False

39.

If you know the density of a liquid and its volume, the mass of the liquid may be calculated using the equation: m = V/d.

a)

True

b)

False

40.

The density of iron is 7.86 g/cm³ while the density of lead is 11.4 g/cm³. If you had one cm³ of each metal, the piece of iron would have a greater mass.

a)

True

b)

False

41.

The correct scientific notation for the number 0.00050210 is:

a)

5.0210 × 10⁴

b)

5.021 × 10⁻⁴

c)

5.021 × 10⁴

d)

5.0210 × 10⁻⁴

e)

none of the above

42.

The correct scientific notation for the number 500.0 is:

a)

5 × 10²

b)

5.00 × 10²

c)

5.000 × 10²

d)

5 × 10⁻²

e)

none of the above

43.

The distance between the two hydrogen atoms in a molecule of water is 0.000000000172 m. Express this distance in scientific notation.

a)

1.72 × 10⁻⁹ m

b)

1.72 × 10⁻¹⁰ m

c)

0.172 × 10⁻¹⁰ m

d)

17.2 × 10⁹ m

e)

1.72 × 10¹⁰ m

44.

The wavelength of blue light is 0.00000045 m. Express this wavelength in scientific notation.

a)

4.5 × 10⁻⁶ m

b)

4.5 × 10⁶ m

c)

4.5 × 10⁻⁷ m

d)

4.5 × 10⁷ m

e)

0.45 × 10⁻⁷ m

45.

The correct decimal representation of 1.201 × 10⁻⁷ is:

a)

12010000

b)

0.001201

c)

0.0000001201

d)

1201.000

e)

none of the above

46.

The correct decimal representation of 6.453 × 10³ is:

a)

6,453

b)

0.006453

c)

6.5 × 10³

d)

6.453

e)

none of the above

47.

Suppose a thermometer has marks at every one degree increment and the mercury level on the thermometer is exactly between the 25 and 26 degree Celsius marks. We should properly report the temperature measurement as:

a)

25°C

b)

26°C

c)

25.5°C

d)

25.50°C

e)

25.55°C

48.

In the number 48.93, which digit is estimated?

a)

4

b)

8

c)

9

d)

3

e)

None of the above, all digits are certain.

49.

There are exactly 2.54 centimeters in 1 inch. When using this conversion factor, how many significant figures are you limited to?

a)

1

b)

3

c)

ambiguous

d)

depends on if you are using it in multiplication/division or addition/subtraction

e)

infinite number of significant figures

50.

The correct number of significant figures in the number 865,000 is:

a)

3

b)

6

c)

4

d)

ambiguous

e)

none of the above

51.

The correct number of significant figures in the number 1.250100 is:

a)

A) 5

b)

B) 7

c)

C) 4

d)

D) ambiguous

e)

E) none of the above

52.

The correct number of significant figures in the number 0.027090 is:

a)

7

b)

6

c)

5

d)

ambiguous

e)

none of the above

53.

The correct number of significant figures in the number 9.080 × 10^4 is:

a)

3

b)

4

c)

5

d)

ambiguous

e)

none of the above

54.

The correct number of significant figures in the number 4.0×10−24.0 \times 10^{-2} is:

a)

1

b)

2

c)

3

d)

ambiguous

e)

none of the above

55.

The correct number of significant figures in the number 0.002320 is:

a)

7

b)

4

c)

3

d)

ambiguous

e)

none of the above

56.

Which of the following statements is NOT part of the rules for determining significant figures?

a)

Non-zero digits at the end of a number are not significant.

b)

Zeroes between two numbers are significant.

c)

Zeroes to the left of the first non-zero number are not significant.

d)

Trailing zeroes at the end of a number, but before an implied decimal point are ambiguous.

e)

All of the above statements are part of the rules.

57.

When the value 4.449 is rounded to two significant figures, the number should be reported as:

a)

4.4

b)

4.5

c)

4.44

d)

4.45

e)

none of the above

58.

How many significant digits should be reported in the answer to the following calculation? (4.3 - 3.7) × 12.3 =

a)

1

b)

2

c)

3

d)

4

e)

none of the above

59.

The correct prefix for the multiplier 1,000,000 is:

a)

mega.

b)

milli.

c)

micro.

d)

nano.

e)

none of the above

60.

The correct prefix for the multiplier 1,000 is:

a)

mega.

b)

milli.

c)

micro.

d)

nano.

e)

none of the above

61.

The correct prefix for the multiplier 0.1 is:

a)

tera.

b)

deci.

c)

femto.

d)

pico.

e)

none of the above

62.

The correct prefix for the multiplier 0.000001 is:

a)

mega.

b)

milli.

c)

micro.

d)

nano.

e)

none of the above

63.

The correct prefix for the multiplier 100 is:

a)

mega.

b)

hecto.

c)

centi.

d)

nano.

e)

none of the above

64.

The correct prefix for the multiplier 10 is:

a)

deca.

b)

deci.

c)

tera.

d)

centi.

e)

none of the above

65.

The correct prefix for the multiplier 1,000,000,000 is:

a)

mega.

b)

milli.

c)

tera.

d)

giga.

e)

none of the above

66.

The correct multiplier for the prefix pico is:

a)

10-3

b)

10-6

c)

10-9

d)

10-12

e)

none of the above

67.

The correct multiplier for the prefix femto is:

a)

10-15

b)

10-12

c)

1012

d)

109

e)

none of the above

68.

The correct multiplier for the prefix milli is:

a)

10-3

b)

10-6

c)

10-9

d)

10-12

e)

none of the above

69.

The correct multiplier for the prefix micro is:

a)

103

b)

10-6

c)

10-9

d)

106

e)

none of the above

70.

What is the base SI unit for length?

a)

mile

b)

centimeter

c)

foot

d)

meter

e)

none of the above

71.

What is the base SI unit for mass?

a)

kilogram

b)

gram

c)

pound

d)

ton

e)

none of the above

72.

The base SI unit for temperature is:

a)

Fahrenheit.

b)

Kelvin.

c)

Celsius.

d)

atmospheres.

e)

none of the above

73.

Which measurement below represents the heaviest mass?

a)

1 mg

b)

1 kg

c)

1 pg

d)

1 Mg

e)

1 dg

74.

Which of the following sets of units is NOT in the order of increasing size?

a)

μg < g < kg

b)

mL < dL < L

c)

ns < ms < s

d)

cm < μm < km

e)

μmol < mmol < mol

75.

An American nickel five cent coin has a mass of approximately 5 grams. Five grams is equivalent to which term?

a)

5000 kilograms

b)

5000 milligrams

c)

50 centigrams

d)

5000 micrograms

e)

none of the above

76.

Which of the following would NOT be considered a correct conversion factor?

a)

1 dozen eggs = 12 eggs

b)

12 eggs = 1 dozen eggs

c)

1 pair of shoes = 1 shoe

d)

100 pennies = 1 dollar

e)

5 cents = 1 nickel

77.

The common English unit in which the speed of an automobile is expressed is miles/hr. What is the set of base SI units for speed?

a)

mile/s

b)

km/hr

c)

km/s

d)

m/s

e)

none of the above

78.

The typical problem-solving procedure involves four steps in the order:

a)

sort, strategize, solve, check.

b)

strategize, solve, sort, check.

c)

check, strategize, sort, solve.

d)

solve, sort, check, strategize.

79.

How many inches are in 25.8 cm?

a)

0.10

b)

28.3

c)

0.0984

d)

10.2

e)

none of the above

80.

How many inches are in 2.80 ft?

a)

34

b)

33.6

c)

0.233

d)

4.29

e)

none of the above

81.

How many grams are in 1.48×107μg1.48 \times 10^7 \mu g ?

a)

1.48 × 10310^3

b)

1.48 × 10^13

c)

1.48

d)

14.8

e)

none of the above

82.

How many milliliters are in 17.5 L?

a)

175

b)

1.75×10−21.75 \times 10^{-2}

c)

1.75×1031.75 \times 10^3

d)

1.75×1041.75 \times 10^4

e)

none of the above

83.

How many microliters are in 41.0 mL?

a)

4.1 × 10^3

b)

4.1×10104.1 \times 10^{10}

c)

0.041

d)

4.10×1044.10 \times 10^4

e)

none of the above

84.

How many liters are in 333 mL?

a)

3.33×1053.33 \times 10^5

b)

0.333

c)

33.3

d)

3.33

e)

none of the above

85.

How many low dose 81 mg aspirin tablets can be made from 1.21 kg of aspirin?

a)

1.5 × 10^3 tablets

b)

1.5 × 10^4 tablets

c)

1.5 × 10^5 tablets

d)

1.21 × 10^3 tablets

e)

1.21 × 10^4 tablets

86.

A 12-oz can of soda pop costs eighty-nine cents. A 2.00 L bottle of the same variety of soda pop costs $2.29. How many times more expensive it is to buy the 12-oz can of pop compared to buying it in a 2.00 L bottle?

a)

1.9

b)

2.2

c)

2.6

d)

2.8

e)

4.2

87.

How many cm^3 are there in 2.5m32.5 m^3 ?

a)

2.5×1062.5 \times 10^6

b)

2.5×10−22.5 \times 10^{-2}

c)

2.5×1022.5 \times 10^2

d)

2.5×10−62.5 \times 10^{-6}

e)

none of the above

88.

How many cm^3 are there in 1.25ft31.25 ft^3 ?

a)

38.1

b)

5.49×1035.49 \times 10^3

c)

246

d)

3.54×1043.54 \times 10^4

e)

none of the above

89.

A room has dimensions of 10.0 ft × 20.0 ft × 8.00 ft. Given that there are three feet in a yard, what is the volume of the room in yd^3?

a)

178

b)

59.3

c)

1.60 × 10^3

d)

533

e)

none of the above

90.

What is the volume of a cube with dimensions 11.0 cm × 11.0 cm × 11.0 cm in m^3?

a)

1.331 × 10^-3

b)

1.33×1031.33 \times 10^3

c)

1.33×10−31.33 \times 10^{-3}

d)

1.3×1031.3 \times 10^3

e)

none of the above

91.

Which term below is equivalent to one milliliter?

a)

1 cc

b)

1 mL

c)

1 cm^3

92.

A plastic block has dimensions of 2.2 cm × 3.0 cm × 1.5 cm and a mass of 12.4 grams. Will the block float in water and why?

a)

Yes, because the density of the block is 1.3 g/mL which is less than the density of water.

b)

Yes, because the density of the block is 0.80 g/mL which is less than the density of water.

c)

No, because the density of the block is 1.3 g/mL which is greater than the density of water.

d)

No, because the density of the block is 0.80 g/mL which is greater than the density of water.

e)

none of the above

93.

Suppose a boat engine leaks 938 milliliters of oil into a lake. The mass of this spilled oil is 823 grams. The oil will not mix with the lake water. Which statement is true?

a)

The oil will sink because its density of 0.877 g/mL is greater than the density of water.

b)

The oil will float because its density of 0.877 g/mL is less than the density of water.

c)

The oil will sink because its density of 1.14 g/mL is greater than the density of water.

d)

The oil will float because its density of 1.14 g/mL is less than the density of water.

e)

none of the above

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