Scientific Ontology

W

Mechanics

Work

Energy transferred by a force acting over a distance.

joule (J)

Dimension: $[\,M L^2 T^{-2}\,]$

How values of work span the physical world (in J, log scale).

Lifting a book

5.00 × 10⁰ J

Climbing stairs

1.50 × 10³ J

Lower limit10^-3 JUpper limit10⁹ J

Work Done by a Force

W = F d \cos\theta

Power

P = \dfrac{W}{t}

First Law of Thermodynamics

\Delta U = Q - W