Deck 2: Measurements

Question 1

An exact number is a measured value of an estimate or a calculation.

Answer 1

False

Question 2

As per the 2010 census, the United States population is estimated to be 308.70 million. This measurement has four significant figures.

Answer 2

False

Question 3

Significant figures represent the limits of what values of a measurement or a calculation we are sure of.

Answer 3

True

Question 4

The number '0.006608' has six significant figures.

Question 5

If the operations being performed are multiplication or division, the answer has to be limited to the number of significant figures that the data value with the most number of significant figures has.

Question 6

Density is a physical property that is defined as a substance's mass divided by its volume.

Question 7

One cubic centimeter is equal to a milliliter.

Question 8

Conversion factor refers to a fraction that can be used to convert a quantity from one unit to another.
18. 555 nm is equivalent to 0.555 mm.

Question 9

The following calculation is performed with the proper number of significant figures. 124 × 10.45 = 1290

Question 10

Standard notation is an expression of a number using powers of 10.
2. 0.000411 is an example of using standard notation to express a number.

Question 11

Temperature is a measure of the average amount of static energy a system contains.

Question 12

The multiplicative amount of the prefix nano is one thousand.

Question 13

The number '8.6090 x 10^3' has only four significant figures.

Question 14

If the expression X+Y=Z is valid, 10X+10Y=10Z is also valid.

Question 15

On the Fahrenheit scale, the freezing point of liquid water is 32°F, and the boiling point of water is 212°F.
22. 0°F is equivalent to -32°C.
23. 30°C is the Celsius equivalent of 86°F.

Question 16

Meter is the SI unit of measuring length of an object.

Question 17

The number 9.666 × 10⁶ has four significant figures.

Question 18

Volume of a vessel is measured using a derived unit.

Question 19

Zeros at the end of a number without a decimal point are considered significant.

Question 20

Any nonzero digit in a measurement is considered significant.

Question 21

Which of the following parameters is measured using a derived SI unit?

A) Length
B) Weight
C) Volume
D) Time
E) Perimeter

Question 22

Which of the following is a fundamental SI unit?

A) Yard
B) Kilogram
C) Feet
D) Minute
E) Joule

Question 23

Which of the following unit systems is commonly used in chemistry?

A) FTS system of units
B) United States customary units
C) International System of Units
D) British system of Units
E) System of imperial units

Question 24

Fifteen kilometers is equal to _____.

A) 1500 meters
B) 150 meters
C) 150000 meters
D) 15000 meters
E) 0.00015 meters

Question 25

Which of the following statements is true about the significance of numbers?

A) Zeros between non-zero digits are not considered significant.
B) All digits of a number are significant, though their relative importance vary.
C) Zeros at the end of a number without a decimal point are significant.
D) Leading zeroes serve only to put the significant digits in the correct positions.
E) Zeros at the end of any number with a decimal point are significant.

Question 26

What does a negative exponent of a number imply?

A) The number is imaginary.
B) The number's value is less than one.
C) The number is irrational.
D) The number cannot be expressed as a fraction.
E) The given number is a negative number.

Question 27

Joule (J) is the unit of energy or work in the International System of Units. A joule can be represented as J = kg×m²÷ s². Joule is a(n) _____.

A) Prefixed unit
B) Fundamental unit
C) Derived unit
D) Imperial unit
E) FTS unit

Question 28

Identify the scientific notation of 698.

A) 6.98 x 10¹
B) 6.98 × 10²
C) 6.98 x 10³
D) 6.98 × 10^-2
E) 6.98 × 10^-3

Question 29

_____ notation is an expression of a number using powers of ten.

A) Standard
B) Customary
C) Technical
D) Scientific
E) General

Question 30

The concept of reporting the proper number of digits in a measurement or a calculation is called _____.

A) derived units
B) prefixed units
C) imprecise representation
D) loose depiction
E) significant figures

Question 31

Which of the following is measured using a derived SI unit?

A) Area of a circular plate
B) Perimeter of metal ring
C) An individual's mass
D) Time taken to boil water
E) Diameter of a ball

Question 32

Which of the following is the SI unit of length?

A) Meter
B) Feet
C) Yard
D) Inch
E) Mile

Question 33

The part of a number in scientific notation that is multiplied by a power of 10 is called the _____.

A) exponent
B) numerator
C) association
D) coefficient
E) denominator

Question 34

One liter is _____ of a meter cubed.

A) 1/1000th
B) 10^th
C) 100^th
D) 1/100^th
E) 1/10^th

Question 35

A ball made of iron has a mass of 3.78
g. If the density of the ball is 7.87 g/cm³, the volume of the cork is 2.08cm³.

Question 36

Which of the following zeros is not significant?

A) Zeros at the end of a number without a decimal point
B) Leading zeros of a decimal number
C) Embedded zeros in a decimal number
D) Trailing zeros of a decimal number
E) Zeros at the beginning of a decimal number

Question 37

Significant figures represent the limits of _____.

A) human ability to approximate the value of a calculation
B) what values of a measurement or a calculation we are sure of
C) the inaccuracy displayed by a measuring instrument
D) the population of data used to arrive at a certain conclusion
E) methods used to calculate the accuracy of a calculation

Question 38

The exponent's value in scientific notation is equal to:

A) the power of ten the base number is multiplied by.
B) the number of odd decimal digits in the number expressed in standard notation.
C) the number of digits after the decimal point in the number expressed in standard notation.
D) the number of even decimal digits in the number expressed in standard notation.
E) the number of digits in the number expressed in standard notation.

Question 39

The straightforward expression of a number is referred to as _____ notation.

A) standard
B) scientific
C) exponential
D) technical
E) methodical

Question 40

Which of the following is an example of a numerical prefixed SI unit?

A) Pound
B) Gram
C) Yard
D) Second
E) Centimeter

Question 41

_____ is a measure of the average amount of energy of motion, or kinetic energy, a system contains.

A) Pressure
B) Conductivity
C) Temperature
D) Density
E) Viscosity

Question 42

How many cubic centimeters are in 0.1 m³?

A) 1000
B) 100
C) 10
D) 10000
E) 100000

Question 43

Which of the following terms refers to formally changing the unit of a quantity into another unit?

A) Fundamental analysis
B) Unit prefixing
C) Numerical prefixing
D) Signifying numbers
E) Factor label method

Question 44

The _____ scale is a temperature scale where 0 degree is the freezing point of water and 100 degree is the boiling point of water.

A) Celsius
B) Fahrenheit
C) Kelvin
D) Newton
E) Delisle

Question 45

For the below given calculation, express the final answer to the proper number of significant figures. 5.8003 × 20.0=?

A) 116
B) 116.1
C) 116.01
D) 116.006
E) 116.0060

Question 46

What is 105.4°F in degrees Celsius?

A) 38.65°C
B) 40.79°C
C) 36.24°C
D) 39.66°C
E) 40.78°C

Question 47

What is the liter equivalent of 55.12 μL?

A) 55120
B) 5512
C) 5.512 × 10⁻⁵
D) 5.512× 10⁻²
E) 5.512× 10²

Question 48

Expressions used to formally change the unit of a quantity into another unit are called _____.

A) natural expressions
B) denominators
C) dimensions
D) conversion factors
E) fundamental ratios

Question 49

How many significant figures does the number '3.303×10⁶' have?

A) 5
B) 6
C) 10
D) 7
E) 4

Question 50

How many feet are there in 15 yards?

A) 45
B) 75
C) 5
D) 10
E) 30

Question 51

The _____ temperature scale uses degrees that are the same size as the Celsius degree, but the numerical scale is shifted up by 273.15 units.

A) Rankine
B) Fahrenheit
C) Kelvin
D) Newton
E) Delisle

Question 52

For the calculation given below, express the final answer to the proper number of significant figures. 56.8003 − 50.1 =?

A) 6.701
B) 6.702
C) 6.7
D) 6.71
E) 6.7003

Question 53

A(n) _____ number is a number from a defined relationship that technically has an infinite number of significant figures.

A) natural
B) exact
C) complex
D) irrational
E) fundamental

Question 54

Which of the following measurements has 3 significant figures?

A) 3670.05
B) 50505
C) 0.06067
D) 0.000060
E) 8.00 x 10²

Question 55

Which of the following results is equivalent to 59.9 m/min?

A) 599 cm/s
B) 5.99 cm/s
C) 998 cm/s
D) 99.8 cm/s
E) 5990 cm/s

Question 56

How many significant figures does the measurement '0.00030033' have?

A) 1
B) 3
C) 4
D) 5
E) 8

Question 57

A square plot has sides of length 567 cm each. What is the area of the garden plot in square meters? Express your answer in the proper number of significant figures.

A) 32.1
B) 22.68
C) 32.148
D) 22.69
E) 32.149

Question 58

Identify the value associated with the prefix milli.

A) 1/100
B) 1/1000
C) 100
D) 1000
E) 0.01

Question 59

For the calculation given below, how many significant figures should the result have? 505 ÷ 5.8030 =?

A) 1
B) 2
C) 3
D) 4
E) 5

Question 60

For the calculation given below, express the final answer to the proper number of significant figures. 1.23 + 18.788 =?

A) 20.018
B) 20.02
C) 20.03
D) 20.029
E) 20.02180

Question 61

What is the mass of 40.0 mL of mercury (density 13.6 g/mL)?

A) 1436
B) 2449
C) 544
D) 556
E) 2941

Question 62

The time taken for a chemical reaction is estimated to be 0.00004 ms. How do you express this measurement, in seconds, using the scientific notation? What are the benefits of doing this?

Question 63

What is an exact number? Explain with an example.

Question 64

Which of the following refers to absolute zero temperature in the Celsius scale?

A) 150°C
B) 273.15°C
C) 295°C
D) -273.15°C
E) -295°C

Question 65

Briefly describe the International System of Units.

Question 66

What is temperature? What is the commonly used temperature scale in the United States?

Question 67

Explain the concept of significant figures.

Question 68

How many millimeters are in 13.66 m? Explain the calculation and creation of conversion factor.

Question 69

How are conversions from one unit to another unit of the same type performed?

Question 70

What are derived units? Explain by providing an example.

Question 71

What is the equivalent of 38°C in Kelvin scale?

A) 100.15 K
B) 311.15 K
C) 300.15 K
D) 105.15 K
E) 101.15 K

Question 72

What is the difference between standard notation and scientific notation?

Question 73

The part of a number in scientific notation that is multiplied by a power of 10 is called the _____.

Question 74

A(n) _____ is the raised number to the right of a 10 indicating the number of factors of 10 in the original number.

Question 75

Explain how significant figures are handled in calculations.

Question 76

Explain the Celsius scale. Compare and contrast the Celsius scale with the Kelvin scale.

Question 77

List the conventions that dictate which numbers in a reported measurement are significant and which are not significant.

Question 78

What is density? How is it measured?
Density is a physical property that is defined as a substance's mass divided by its volume: Density is usually a measured property of a substance, so its numerical value affects the significant figures in a calculation. Density overall has derived units. Common units for density include g/mL, g/cm³, g/L, kg/L, or even kg/m³.

Question 79

Provide examples of any three multiplicative prefixes and their multiplicative amounts.

Question 80

_____ is a physical property that is defined as a substance's mass divided by its volume.

A) Dynamic viscosity
B) Density
C) Kinematic viscosity
D) Viscoelasticity
E) Pressure