We’re not talking about the friction at the dinner table when your sister opened up about your “misdemeanor at the mall” We’re talking science here..
Friction is defined as: The force resisting the relative motion of two contacting bodies. There are three kinds of Friction…
- Dry or Solid Friction – aka Sliding Friction, occurs when surfaces in contact move relative to each other in the absence of a lubricant. Produces the most heat.
- Rolling Friction– examples are rolling and ball bearings. Produces less heat and consumes less power than dry friction. Requires less force to overcome than sliding friction.
- Fluid Friction -when fluid molecules slide past each other, its fluid friction. Produces the least amount of heat and consumes the least power.
BONUS INFO! – A few undesirable effects of friction include:
- Loss of power, high energy consumption.
- Increased heat
- Lubricants oxidize
- Excessive wear
