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AllTheTests.com
-»
Knowledge and trivia tests
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Physics quizzes
Biology/Physics
100 Questions - Developed by:
Vilde
- Developed on:
2016-12-06
- 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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