Biology/Physics 2

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11 Questions - Developed by: Vilde - Developed on: - 740 taken

  • 1
    - An amplifier is a device that increases frequency of the electric voltage (V), electric current (A), or electric power (P)
  • 2
    - If the period of signal on oscilloscope is 5 cm representing 50 ms, then the amplitude of this signal is 10 mV
  • 3
    - Biosignals are being generated by the interaction of the organism with an external stimulus (e.g. with electromagnetic field, ionizing radiation, etc.)
  • 4
    - A comparative method of measurement (e.g. the density using a pycnometer) is based on the measurement of given quantity on unknown sample and also on the sample, which characteristics (measured quantity) are known
  • 5
    - When we adjust zero equilibrium position of the balance (e.g. by setting it by pushing
    the „zero“ button) it is guaranteed that by balancing the object (e.g. by reading the mass
    from the display) we get correct result.
  • 6
    - Using linear interpolation method, if 3 kg correspond to 6 ml and 4 kg corresponds to 8 ml, then 3.5 kg corresponds to 7 ml
  • 7
    - It is easier to measure directly the amount of substance (in mole) than the mass
  • 8
    - Accuracy of volume measurement is usually higher than the accuracy of weighing
  • 9
    - An example of linear relationship: 3-fold input results in 3-fold output
  • 10
    - An example of linear relationship: 3-fold input does not result in 3-fold output
  • 11
    - An example of linear relationship: 3-fold input results in 6-fold output

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