|
|
|
|
|
|
|
|
|
n |
A body with an
ability to
|
|
|
vibrate has a
natural frequency
|
|
at which it will
vibrate
|
|
|
n |
If you put an
object that is
|
|
|
vibrating with
that same
|
|
|
natural
frequency next to that
|
|
|
body, the body
will also start
|
|
|
vibrating (don’t
need to touch)
|
|
|
n |
This is called
“resonance”
|
|