What are the 7 SI units and their units of measurements?
http://physics.nist.gov/cuu/Units/units.html
http://physics.nist.gov/cuu/Units/
The International System of Units (SI) defines seven base units which serve as the foundation for all other measurements. These seven SI units are:
1. Meter (m): The meter is the unit of length. It is defined as the length of the path traveled by light in a vacuum during a time interval of 1/299,792,458 of a second.
2. Kilogram (kg): The kilogram is the unit of mass. It is currently defined in relation to a platinum-iridium cylinder with a specified mass, known as the International Prototype of the Kilogram.
3. Second (s): The second is the unit of time. It is defined as the duration of 9,192,631,770 periods of the radiation corresponding to the transition between the two hyperfine levels of the ground state of the cesium-133 atom.
4. Ampere (A): The ampere is the unit of electric current. It is defined as the constant current that, if maintained in two straight parallel conductors of infinite length and negligible cross-section, would produce a force between the conductors of exactly 2 × 10⁻⁷ newtons per meter of length.
5. Kelvin (K): The Kelvin is the unit of temperature. It is defined as 1/273.16 of the thermodynamic temperature of the triple point of water.
6. Mole (mol): The mole is the unit of amount of substance. It is defined as the amount of a substance that contains as many elementary entities (atoms, molecules, etc.) as there are atoms in exactly 0.012 kilograms of carbon-12.
7. Candela (cd): The candela is the unit of luminous intensity. It is defined as the luminous intensity, in a given direction, of a source that emits monochromatic radiation of frequency 540 × 10¹² hertz and that has a radiant intensity in that direction of 1/683 watt per steradian.
Remember, these are the base units, and from these, various derived SI units can be formed, such as the unit of velocity, which is meters per second (m/s), or the unit of area, which is square meters (m²).