exploring science

• what are physical quantities


  the quantities that can be measured are called physical quantities.
• what are the 2 types of physical quantities

  base quantities and derived quantities
• what are base quantities


  the quantities that are distinct in nature and cannot be expressed in a form of other quantities are called base quantities.
• what are derived quantities

  the physical quantities that are defined in terms of base quantities are called derived quantities.
• what is measurement

  measurement is a process of comparing and expressing an unknown quantity with a known quantity.
• what are the 2 components that the measurements are expressed by


  .unit of measurement

  .magnitude
• what are SI units

  the units used by the standard system are called SI units.