The SI (metric) unit of time is the second.
The second is technically defined thus:
The second is 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.
The cesium atom must be at rest at 0o K (absolute zero temperature).
a. Meter per second and d. kg meter per second are SI units because they involve the base SI units meter (m) and kilogram (kg). b. Minute per meter, c. gram per second, and e. km per second are not SI units as they do not use the base SI units.
distance,time
Wavelength is in meters, the frequency is in hertz. period is in seconds and the wave speed is in meters per second.
Time and temperature are quantities to be measured. The SI units for time and temperature are the second and the kelvin, respectively.
The base units in the SI chart are the meter for length, kilogram for mass, second for time, ampere for electric current, kelvin for temperature, mole for amount of substance, and candela for luminous intensity.
The SI unit for distance is the meter (m), and the SI unit for time is the second (s).
Not really. The second is one of the SI system's seven BASE (not 'basic') units.
a. Meter per second and d. kg meter per second are SI units because they involve the base SI units meter (m) and kilogram (kg). b. Minute per meter, c. gram per second, and e. km per second are not SI units as they do not use the base SI units.
It's the "second".
The SI unit for frequency is Hertz, the number of cycles per second.
Meter per secondThere is no standard SI unit for velocity actually. It is a derived unit. Velocity is distance traveled per time together with the direction of motion. The SI unit of distance is the meter (m) and the SI unit of time is the second (s).So the units of velocity in SI units is meters/second (m/s), or ms-1See the Related Questions link to the left "What are all the SI units" for more information about SI units.CommentDerived units are SI units.
The SI has seven base units (kilogram, meter, second, ampere, kelvin, mole, candela), and lots of derived units - for example, meter/second for speed/velocity, coulomb = ampere x second for electrical charge, etc.
distance,time
Meter Kilogram Second Ampere
Wavelength is in meters, the frequency is in hertz. period is in seconds and the wave speed is in meters per second.
Time and temperature are quantities to be measured. The SI units for time and temperature are the second and the kelvin, respectively.
Power and work both have the same SI units, which are joules per second (J/s), also known as watts (W).