Deck 2: Measurement and Problem Solving

Question 1

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

Answer 1

True

Question 2

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

Answer 2

True

Question 3

The decimal number 0.0000010 expressed in scientific notation is 1.0 × 10⁶.

Answer 3

False

Question 4

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

Question 5

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

Question 6

The number 7.20 × 10³ contains three significant figures.

Question 7

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.

Question 8

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

Question 9

Zeros located between two numbers are not significant.

Question 10

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

Question 11

The mass of an object depends on gravity.

Question 12

Exact numbers have an unlimited number of significant figures.

Question 13

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

Question 14

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

Question 15

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

Question 16

The number 0.010100 has five significant figures.

Question 17

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

Question 18

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

Question 19

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

Question 20

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

Question 21

All solids have the same density.

Question 22

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

Question 23

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

Question 24

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

Question 25

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

Question 26

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

Question 27

The prefix micro represents the multiplier 0.001.

Question 28

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

Question 29

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

Question 30

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

Question 31

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

Question 32

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

Question 33

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

Question 34

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

Question 35

The prefix nano represents the multiplier 0.000000001.

Question 36

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

Question 37

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.

Question 38

There are 1000 kilometers in one meter.

Question 39

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

Question 40

Suppose a perfectly symmetric metal rod of the element lead has a density of 11.4 g/cm³.If this rod is cut in half,the density of each piece is now 5.7 g/cm³.

Question 41

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)Zeroes at the end of a number,but before a decimal are ambiguous.
E)All of the above statements are part of the rules.

Question 42

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

Question 43

The correct number of significant figures in the number "9.080 x 10^-4" is

A)3
B)4
C)5
D)ambiguous
E)none of the above

Question 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

Question 45

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

Question 46

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

A)5
B)7
C)4
D)ambiguous
E)none of the above

Question 47

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.

Question 48

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

Question 49

The correct decimal representation of 1.201 × 10^-7 is:

A)12010000
B)0.0001201
C)0.0000001201
D)1201.000
E)none of the above

Question 50

Determine the answer to the following equation with correct number of significant figures:
13.96 - 4.9102 + 71.5 = ________

A)80.5498
B)81
C)80.5
D)80.55
E)none of the above

Question 51

Determine the answer to the following equation with correct number of significant figures:
106 ÷ 9.02 × 1.9 = ________

A)22.32816
B)22.328
C)22.3
D)22
E)none of the above

Question 52

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

Question 53

Determine the answer for the equation below with correct number of significant figures:
3.215 × 13.2 ÷ 0.218 = ________

A)194.669
B)195
C)194.7
D)194.67
E)none of the above

Question 54

The correct number of significant figures in the number 4.0 × 10^-2 is:

A)1
B)2
C)3
D)ambiguous.
E)none of the above

Question 55

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

Question 56

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

Question 57

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

Question 58

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

Question 59

Determine the answer to the following equation with correct number of significant figures:
2.02 + 8.102 - 0.0297 = ________

A)10.0923
B)10.09
C)10.1
D)10.092
E)none of the above

Question 60

Determine the answer for the equation below with correct number of significant figures:
1.2 × 1.79 = ________

A)2.148
B)2.15
C)2.1
D)2.2
E)none of the above

Question 61

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

Question 62

Determine the answer to the following equation with correct number of significant figures:
(4.123 × 0.12)+ 24.2 = ________

A)25
B)24.695
C)24.70
D)24.7
E)none of the above

Question 63

What is the standard SI unit for length?

A)mile
B)centimeter
C)foot
D)meter
E)none of the above

Question 64

Determine the answer to the following equation with correct number of significant figures:
(17.103 + 2.03)× 1.02521 = ________

A)19.6153
B)19.62
C)19.6
D)20
E)none of the above

Question 65

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

Question 66

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

A)mega.
B)milli.
C)tera.
D)giga.
E)none of the above

Question 67

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

Question 68

The correct prefix for the multiplier 0.000001 is:

A)mega.
B)milli.
C)micro.
D)nano.
E)none of the above

Question 69

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

Question 70

What is the standard SI unit for mass?

A)kilogram
B)gram
C)pound
D)ton
E)none of the above

Question 71

The correct prefix for the multiplier 0.1 is:

A)tera.
B)deci.
C)femto.
D)pico.
E)none of the above

Question 72

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

Question 73

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

A)mega.
B)milli.
C)micro.
D)nano.
E)none of the above

Question 74

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

Question 75

Which measurement below represents the heaviest mass?

A)1 mg
B)1 kg
C)1 pg
D)1 Mg
E)1 dg

Question 76

The standard SI unit for temperature is:

A)Fahrenheit.
B)Kelvin.
C)Celsius.
D)atmospheres.
E)none of the above.

Question 77

The correct prefix for the multiplier 1,000 is:

A)mega.
B)milli.
C)micro.
D)nano.
E)none of the above

Question 78

The correct multiplier for the prefix femto is:

A)10^-15
B)10^-12
C)10¹²
D)10⁹
E)none of the above

Question 79

The correct multiplier for the prefix micro is:

A)10³
B)10^-6
C)10^-9
D)10⁶
E)none of the above

Question 80

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

A)mile/s
B)km/hr
C)km/s
D)m/s
E)none of the above