Heat Loss Equation
Reference from the original Physics I textbook.
- Heat Loss Equation
For constant kinetic friction along path segments, the thermal energy gained is E_th = Σfₖ,ᵢsᵢ, where fₖ,ᵢ and path length sᵢ are nonnegative. More generally E_th = ∫fₖ ds.
1 joule = 1 N·m = 1 kg·m²/s². Also, 1 newton = 1 kg·m/s².
- Related Glossary Terms
- Index
Reviewed physics notes (2)
These corrections keep the original lesson’s purpose while fixing errors in the source edition.
- A joule is N·m; N·s is momentum or impulse. — Reference 1
- Heat-loss magnitude is scalar; original vector-times-distance is misleading. — Reference 1
Glossary and deeper reading · 1 refreshers
These editorial refreshers supplement the reading. Definitions and examples are added guidance; original source wording and recorded answers remain in their original context.
-
Mechanical work
Mechanical work is energy transferred by a force through displacement of its point of application. For a constant force on a particle, it depends on the force component along the particle’s displacement, and it can be positive, negative, or zero. For example, a magnetic force perpendicular to a particle’s displacement does zero work on that particle.