For measuring inertial masses and qualitatively understanding the
terms, mass and weight. This principle can be used to determine
mass under weightless conditions in space flights.
The apparatus
consist of two
a l u m i n i u m
trays joined
together by a
pair of spring
steel strips
attached to
their sides.
Trays are
about 200mm apart. One of the trays (the oscillating tray) is drilled
to hold three equal cylindrical masses and the other tray acting as an
anchorage is clamped by a C-clamp to a bench. Supplied with three
masses and a cord (does not include a C-clamp).