Description
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Longitudinal Wave Demonstration
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.
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Ripple Tank
Description :-
Transparent acrylic plastic ripple tank, supported in a sturdy plastic frame which has recesses to hold four legs with leveling feet.
The tank edges are shaped to minimize undesired reflections.
Tank has a drain hole closed by a rubber stopper.
With two light alloy uprights to carry a horizontal rippler support rod which is adjustable for height.
The ripple assembly, elastically suspended from the support rod, consists of a 4 – 6 V DC motor mounted on a wooden beam.
The motor has an eccentric weight which causes the beam to oscillate.
Two point sources are provided by two plastic spheres, each mounted on a right angle rod.
A metal rod is fixed centrally into a socket in one short side of the frame to afford support to the illuminant.
Overall size of the tank 580 x 500 x 80 mm, window area 370 x 280 mm, height of tank above bench level (with legs attached) approx. 375 mm.
Complete with following accessories :-
1. Two straight obstacles of aluminium alloy length 130 mm.
2. One straight obstacle length 40 mm.
3. One curved reflector radius 200 mm.
4. One trapezoidal plastic plate for refraction.
5. One wood hand wave roller.
6. One water dropper.
7. One pkt. rubber bands.
8. One foam plastic sponge.
9.One illuminant with a 12 V, 24 W lamp mounted in a lamp house and provided with a long supporting rod.
Sonometer 3-Wire
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.
Bell Jar and Vacuum Pump Set
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.
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