Description :-
Hollow wooden sounding box 1290 x 130 x 110 mm, with mm scale, has two fixed bridges 72 cm apart over which wires are stretched.
To one wire is fitted a spring balance reading to 100 N x 5 N and its tension can be adjusted by a winged nut and measured.
Another wire passes over a pulley and can be loaded as desired.
A third wire, for comparison, can have its tension adjusted by a wrest-pin.
With 3 movable bridges, wrest-pin key, spring balance, and set of four wires of different diameters, each 1.5 meter long, without masses.
Description :-
To study waves and to demonstrate compression, rarefaction, amplitude, wavelength, echoes, volume and pitch.
Inexpensive model for creating longitudinal/compression waves by simply pushing a Slinky along a track. Includes instructions.
Description :-
Sliding weights on each prong of tuning fork can be adjusted to deliver tones at C-128, D-144, E-160, F-170.7, G-192, A-213.3 and B-240 frequencies.
Description :-
Threaded shanks, mounted on a common resonance box and having frequencies of C1 (256), E (320), G (384) and C2 (512) Hz.
Size of box 285 x 115 x 63 mm approx.
complete with hammer.
Description :- Simple, innovative kit allows you to perform a number of experiments on vacuum and air pressure.
The kit clearly demonstrates the method by which a pump works.
Also illustrates that air has mass and helps find its mass and density.
Explain the effect of surrounding air pressure on a sealed balloon.
The balloon will expand when the surrounding air is removed.
And also demonstrate that liquid boils at reduced temperature when the surrounding air pressure is reduced with instructions.
Description :-
For use with ripple tank, simple form.
A disc of 250 mm diameter with 12 equispaced slots and a finger hole, rotating on its axis, with handle.
Description :-
Tuning Fork Activator is used as a surface to gently strike the tuning fork to activate vibrations.
Rubber activator is tapered so the bottom is wider for stability.
Made of solid rubber.
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