54
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WAVES, VIBRATIONS AND SOUND
2180.00
Mathematical pendulum.
2182.10
Prytz' oscillator
The apparatus is used to demonstrate Hooke's law and
to study the harmonic motion of a spring-mass oscillator.
Mathematical pendulum with support
The scale is provided with a mirror to help avoid parallax
The apparatus consists of two lens-shaped weights of
errors when making readings. It is supplied with a weight
different material but with the same physical dimensions,
holder and four weights: 10, 20 50 and 100 g and three
so that they have different masses but the same air resi-
different sets of springs. It is designed for mounting on a
stance profile. Also supplied is a rod with hooks for two-
standard 10 mm diameter support rod.
point suspension and pendulum cord. The mathematical
2180.00 Prytz oscillator
pendulum is a good approximation to the case of the
"weightless" cord with all mass concentrated at the cen-
ter of gravity of the pendulum bob. In this case the equ-
ation for the period is:
Additional Equipment Needed
T = 2p
l
√ g, where T is the period, I is the length of the pen-
dulum and g is the acceleration due to gravity.
0006.00 Retort stand base 1 ea.
0008.40 Retort stand rod 1 ea.
2182.10 Mathematical pendulum with support
®
Science Equipment for Education Physics
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