Biology/Physics

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100 Questions - Developed by: Vilde - Developed on: - 1.068 taken

  • 1
    - mol is a unit of the quantity: amount of substance
     True
     False
  • 2
    - kmol is a unit of the quantity: amount of substance
     True
     False
  • 3
    - mmol / ml is a unit of the quantity: amount of substance
     True
     False
  • 4
    - mmol is not a unit of the quantity: amount of substance
     True
     False
  • 5
    - Mol is not a unit of the quantity: mass
     True
     False
  • 6
    - One mol of substance can be expressed by means of the mass units
     True
     False
  • 7
    - One mol of substance can be unambiguously (positively) expressed using the volume
    units
     True
     False
  • 8
    - The mass of a sample (matter) can be expressed by means of (converted to) the number of molecules
     True
     False
  • 9
    - The molar mass does not determine the relation between the mass and the amount of
    substance
     True
     False
  • 10
    - The molar mass determines the relation between the mass and the amount of substance
     True
     False
  • 11
    - The unit mol / ml represents the molar concentration
     True
     False
  • 12
    - The unit mmol / ml represents the molar concentration
     True
     False
  • 13
    - The unit mmol / ml does not represent the molar concentration
     True
     False
  • 14
    - The unit mol / kg represents the molar concentration
     True
     False
  • 15
    - One mol is approx. 6 x 10^23 mg
     True
     False
  • 16
    - One mol always represents 6 x 10^23 atoms
     True
     False
  • 17
    - One kmol is approx. 6 x 10^26 particles
     True
     False
  • 18
    - One mol is not approx. 6 x 10^26 particles
     True
     False
  • 19
    - The data obtained at mol / l can be also expressed as kg / l
     True
     False
  • 20
    - The data obtained at mol / l can be also expressed as mmol / l
     True
     False
  • 21
    - The data obtained at kg / l cannot be also expressed as mol / l
     True
     False
  • 22
    - The value of mol / l is identical to the value of mmol / ml
     True
     False
  • 23
    - The value of mol / l is not identical to the value of mmol / ml
     True
     False
  • 24
    - mg / ml is the unit for the density
     True
     False
  • 25
    - mg / ml is the unit for the concentration
     True
     False
  • 26
    - kg / l is not the unit for the density
     True
     False
  • 27
    - kg / l is not the unit for the concentration
     True
     False
  • 28
    - The same units are used for the density and the concentration
     True
     False
  • 29
    - The same units are not applicable for the density and the concentration
     True
     False
  • 30
    - Errors of measurement can be instrumental and methodological
     True
     False
  • 31
    - Errors are exclusively random and instrumental
     True
     False
  • 32
    - Measurements cannot be influenced by personal error
     True
     False
  • 33
    - An inappropriate calibration of the device results in an instrumental error
     True
     False
  • 34
    - The dimension of relative error is the same as the dimension (units) of the result
     True
     False
  • 35
    - Dimension of relative error is not the same as the dimension (units) of the results
     True
     False
  • 36
    - Absolute error of the measurement is expressed in per cent
     True
     False
  • 37
    - Absolute error of the measurement is not expressed in per cent
     True
     False
  • 38
    - Relative error equals to the ratio of the absolute error and the result
     True
     False
  • 39
    - Relative error is expressed in per cent
     True
     False
  • 40
    - Statistical error cannot be expressed as both the absolute and the relative errors
     True
     False
  • 41
    - Statistical error (of the measurement) can be expressed as both the absolute and the
    relative errors
     True
     False
  • 42
    - SEM (SE) determines the interval in which the arithmetic mean (average) is practically
    never located
     True
     False
  • 43
    - SEM (SE) determines the interval in which the arithmetic mean (average) is highly probably located
     True
     False
  • 44
    - There is over 60% probability that the arithmetic mean (average) is located in the interval between the mean minus SEM (SE) and the mean plus SEM
     True
     False
  • 45
    - There is below 60% probability that the arithmetic mean (average) is located in the interval between the mean minus SEM (SE) and the mean plus SEM
     True
     False
  • 46
    - There is over 60% probability that the individual measurement appears in the interval between the arithmetic mean (average) minus SD and the mean plus SD
     True
     False
  • 47
    - There is below 70% probability that the individual measurement appears in the interval between the arithmetic mean (average) minus SD and the mean plus SD
     True
     False
  • 48
    - Instrumental error of the measurement is always expressed in per cent
     True
     False
  • 49
    - Random error of the measurement can be expressed in per cent
     True
     False
  • 50
    - SEM (SE) is always expressed in per cent
     True
     False
  • 51
    - SD can be expressed in per cent
     True
     False
  • 52
    - Arithmetic mean (average) is the most appropriate value that characterizes given quantity (at least within the normal Gauss distribution)
     True
     False
  • 53
    - Arithmetic mean (average) equals to the total (the sum) of all individual measurements (data) divided by the number of these measurements
     True
     False
  • 54
    - Arithmetic mean (average) equals to the total (the sum) of all individual measurements (data) multiplied by the number of these measurements
     True
     False
  • 55
    - Arithmetic mean (average) is the most accurate value of each quantity
     True
     False
  • 56
    - Arithmetic mean (average) is the most probable value for Gauss normal distribution
     True
     False
  • 57
    - Arithmetic mean (average) never equals to the most frequently measured value
     True
     False
  • 58
    - Arithmetic mean (average) may equal to the most frequently measured value
     True
     False
  • 59
    - Arithmetic mean (average) is practically identical with median in the data of the normal Gauss distribution
     True
     False
  • 60
    - Arithmetic mean (average) cannot equal to median
     True
     False
  • 61
    - Arithmetic mean (average) cannot equal to modus (mod)
     True
     False
  • 62
    - Modus (mod) may equal to median
     True
     False
  • 63
    - Modus (mod) never equals to median
     True
     False
  • 64
    - Modus (mod) is the „middle“ value (at least half of the values is more or equal to modus and, at the same time, at least half of the values is less or equal to modus)
     True
     False
  • 65
    - Median is the most frequent value
     True
     False
  • 66
    - In the data set: 2, 2, 3, 2, 3 – the modus (mod) is 2
     True
     False
  • 67
    - In the data set: 2, 2, 3, 2, 2 – the modus (mod) is 3
     True
     False
  • 68
    - Modus (mod) is the most frequent value in the data set
     True
     False
  • 69
    - In the data set: 2, 2, 3, 3, 2 – the median is 2
     True
     False
  • 70
    - Median is the „middle“ value (at least half of the values is more or equal to median and, at the same time, at least half of the values is less or equal to median)
     True
     False
  • 71
    - The calibration means to adjust the zero on the device
     True
     False
  • 72
    - Biosignals are all signals produced by organs and tissues within the body
     True
     False
  • 73
    - Nerve impulses do not represent the biosignal
     True
     False
  • 74
    - Nerve impulses represent the biosignal
     True
     False
  • 75
    - Electromyographic signal does not represent the biosignal
     True
     False
  • 76
    - Electromyographic signal represents the biosignal
     True
     False
  • 77
    - The mass of myocardium represents the biosignal
     True
     False
  • 78
    - Signal is a form of matter carrying the information
     True
     False
  • 79
    - Signal is a form of matter that does not carry the information
     True
     False
  • 80
    - Electric current cannot represent any signal
     True
     False
  • 81
    - Electric current can represent the signal
     True
     False
  • 82
    - Pressure cannot represent any signal
     True
     False
  • 83
    - Pressure can represent the signal
     True
     False
  • 84
    - Non-electric signal is transformed into the electrical one by transducers in order to process them using electrical equipment
     True
     False
  • 85
    - A transducer may employ the changes of electrical resistance
     True
     False
  • 86
    - A transducer cannot employ the changes of capacity
     True
     False
  • 87
    - A transducer cannot employ the changes of electrical resistance
     True
     False
  • 88
    - A transducer may employ the changes of capacity
     True
     False
  • 89
    The negative feedback is the information acquired by the system that „amplify“ the deflection (increases the input signal even more when the output increases)
     True
     False
  • 90
    - The negative feedback is the information acquired by the system that „attenuates“(reduces) the deflection (decreases the input signal when the output increases)
     True
     False
  • 91
    - The positive feedback is the information acquired by the system that „amplify“ the deflection (increases the input signal even more when the output increases)
     True
     False
  • 92
    - The positive feedback is the information acquired by the system that „attenuates“(reduces) the deflection (decreases the input signal when the output increases)
     True
     False
  • 93
    - The longer the period, the higher the frequency of periodic behavior
     True
     False
  • 94
    - The longer the period, the lower the frequency of periodic behavior
     True
     False
  • 95
    - The higher the amplitude, the lower the frequency of periodic behavior
     True
     False
  • 96
    - The higher the amplitude, the higher the frequency of periodic behavior
     True
     False
  • 97
    - The higher the frequency, the shorter the period of periodic behavior
     True
     False
  • 98
    - The lower the frequency, the longer the period of periodic behavior
     True
     False
  • 99
    - The shorter the period, the higher the amplitude of periodic behavior
     True
     False
  • 100
    - The longer the period, the lower the amplitude of periodic behavior
     True
     False

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