Scientific Ontology

p

Mechanics

Momentum

Quantity of motion; mass times velocity.

kilogram metre per second (kg·m/s)

Dimension: $[\,M L T^{-1}\,]$

How values of momentum span the physical world (in kg·m/s, log scale).

Photon (visible)

10^-27 kg·m/s

Thrown ball

5.00 × 10⁰ kg·m/s

Car on motorway

3.00 × 10⁴ kg·m/s

Lower limit10^-24 kg·m/sUpper limit10²⁹ kg·m/s

Linear Momentum

\vec{p} = m\vec{v}

de Broglie Wavelength

\lambda = \dfrac{h}{p}

Impulse

F\Delta t = \Delta p