The parameter associated with the cytocentrifuge in the notes is measured in which unit?

• A. rpm
• B. g
• C. m/s
• D. Hz

Answer: (A)

The spinning speed of the cytocentrifuge is controlled by how fast the rotor turns, which is expressed as revolutions per minute. This unit directly communicates how many full rotations occur each minute, and that speed determines how the sample experiences centrifugal force during processing. While you can relate rpm to the actual force (RCF) or to linear rim velocity, the practical control parameter used in notes and protocols is rpm. Other units describe derived quantities or require additional information (g depends on rotor radius to convert from rpm, m/s needs radius for conversion, Hz is rpm divided by 60). So the measured unit is rpm.