Deck 2: Measurement and Problem Solving

Question 1

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

Answer 1

True

Question 2

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

Answer 2

True

Question 3

Zeros located between two numbers are not significant.

Answer 3

False

Question 4

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

Question 5

Exact numbers have an unlimited number of significant figures.

Question 6

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

Question 7

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

Question 8

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

Question 9

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

Question 10

The number 7.20 × 10³ contains three significant figures.

Question 11

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

Question 12

The number 0.010100 has five significant figures.

Question 13

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 14

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

Question 15

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

Question 16

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

Question 17

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

Question 18

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

Question 19

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

Question 20

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

Question 21

The prefix micro represents the multiplier 0.001.

Question 22

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

Question 23

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

Question 24

There are 1000 kilometers in one meter.

Question 25

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

Question 26

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

Question 27

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

Question 28

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

Question 29

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.

Question 30

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 31

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

Question 32

Suppose a symmetrical 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 33

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

Question 34

The prefix nano represents the multiplier 0.000000001.

Question 35

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

Question 36

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

Question 37

All solids have the same density.

Question 38

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

Question 39

The mass of an object depends on gravity.

Question 40

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

Question 41

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 42

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 × m
B)1.72 × m
C)0.172 × m
D)17.2 × m
E)1.72 × m

Question 43

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 44

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 45

The correct number of significant figures in the number is:

A)3
B)4
C)5
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

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 48

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 49

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 50

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 51

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 52

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 53

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 54

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

A)4.5 × m
B)4.5 × m
C)4.5 × 10^-7 m
D)4.5 × m
E)0.45 × m

Question 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

Question 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.

Question 57

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 58

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 59

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 60

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 61

The correct prefix for the multiplier 0.1 is:

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

Question 62

What is the base SI unit for length?

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

Question 63

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 64

The base SI unit for temperature is:

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

Question 65

The correct prefix for the multiplier 100 is:

A)mega.
B)hecto.
C)centi.
D)nano.
E)none of the above

Question 66

What is the base SI unit for mass?

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

Question 67

The correct prefix for the multiplier 0.000001 is:

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

Question 68

The correct prefix for the multiplier 1,000 is:

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

Question 69

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 70

The correct multiplier for the prefix micro is:

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

Question 71

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

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

Question 72

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 73

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 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

The correct multiplier for the prefix femto is:

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

Question 76

Which measurement below represents the heaviest mass?

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

Question 77

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 78

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 79

The correct prefix for the multiplier 10 is:

A)deca.
B)deci.
C)tera.
D)centi.
E)none of the above

Question 80

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

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