Tag: physics

Force, power times time (energy), and rate of change of momentum (force) all have units of Newtons or Joules. Distance/energy has units of m/J, which is different from the others.

The pascal $(Pa)$ is the SI derived unit of pressure used to quantify internal pressure, stress, Young's modulus and ultimate tensile strength. The unit, named after Blaise Pascal, is defined as one newton per square metre.

The second derivative of energy (J) with respect to distance (m) is d^2(J)/d(m)^2, which results in J/m^2.

We measure the intensity of radioactive emission by  number of atoms that get transformed to new atoms per unit time. 
Curie(Ci) is the standard unit used for measuring radio-activity.
Curie is defined as the emission rate of 1g of radium which is equal to $3.7 \times 10^{10}$ transformations per second.

Electrons spinning on their axes are magnetic dipoles that may or may not cancel out each other depending on the type of dipole.
We measure the  magnetic moment of electron in Joule / Tesla.
The value of magnetic dipole of an electron is $9.27 \times 10^{-24}$ Joule/Tesla.   

The kilowatt-hour ( kWh) is a unit of energy equal to 3600 kilojoules. The kilowatt-hour is a composite unit of energy equal to one kilowatt (kW) of power sustained for one hour.

Gravitational Potential Energy, $U=mgh$

Mass, Length & Time are fundamental physical quantity while velocity is derived physical quantity.

Temperature is one of the basic (fundamental) physical quantities.