occurs. The way in which the damage develops is to a large extent
dependent on the object.
Stability and safety at the incident site are also founded on en-
ergy conversion and energy transfer. An example of such a situa-
tion could be work in connection with a traffic accident that is
to be carried out safely, which, in turn, depends on, among other
things, being able to stabilise the situation in various ways. The
damaged vehicle is supported and forces applied to it through the
use of cutting tools and pressing cylinders (energy is transferred)
in order to release trapped passengers.Incidents and the damage they cause are the result of energy conversion
or the transfer of energy between objects. In a fire the energy that exists
chemically bonded in the fuel is converted to energy in the form of electro
magnetic wave motion in molecules and elementary particles. This form of
energy is transferred via radiation to firefighters, where it is absorbed by
their clothing and bodies. The energy is converted again, causing increased
molecular motion which gives the firefighter the feeling of warmth.
Example 13