RADIATIONÉ
is an wave that moves
through space at a constant speed: 300,000,000 m/s
This wave is
analogous to the ripples on a pond that propagate
when the pondÕs surface is disturbed by a rock. The difference is that instead of waves
of water propagating through space,
radiation involves waves of an
electromagnetic field.
Radiation
comes in many forms...
¥radio
waves ¥microwaves ¥heat from a fire ¥light
¥Ultraviolet rays
¥X-rays ¥Gamma rays
