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Linear Air Track Kit
Suitable for study of linear motion under nearly frictionless conditions. The kit consists of square section aluminium track, length 1.5m, with two rows of fine holes along the top. Supported on two light alloy castings. One support has a two point contact and other a one point contact for lateral and orizontal adjustments by means of a knurled screw. One end of the section is fitted with a tube for connection to blower and the other end is closed. Comes complete with following accessories: | ? | 2 heavy and 1 light vehicle with their mass ratio 2:1. | | ? | 2 Magnetic buffers | | ? | 2 Plasticine Holders with central hole | | ? | 4 Catapults with slots for elastic band | | ? | 1 Reel of nylon thread | | ? | 2 White rods(4 mm diam.150 mm long) | | ? | 24 Needles | | ? | 20 Black plain cards | | ? | 1 Pack of plasticine | | ? | 20 Elastic bands | | ? | 1 Instruction manual |
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Air Blower
Electric air blower with adjustable speed control. Suitable for use with Linear Air Track Kit. Supplied complete with air hose.
Input 230V A.C.
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?g? By Free Fall Apparatus
For determining the value of ?g? by measuring the time taken by a falling steel ball. The apparatus consists of a release unit and a trip unit. Both these units size 13x9x1cm are fitted with 4mm sockets and can be readily clamped on to a 12mm diameter rod. The release unit is fitted with a small solenoid type electromagnet which holds a steel ball. The solenoid helps in the prompt release of the ball on being disconnected. The trip unit has a swinging plate and is fitted with a switch. The switch is normally held closed by a magnet and is opened when the ball falls on the plate. The time of fall is measured by a digital Centisecond Timer. Supplied complete with steel balls but without Centisecond Timer, retort stand and base. -01 Centisecond Timer for ?g? by free fall apparatus.
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Linear Expansion Apparatus
For study of principle of expansion of various metals by heating. Consist of two uprights linked by two rods, supporting an expansion bar, length 38cm, fixed to the upright and resting on a friction pointer placed at the other end. With reading 0 to 90?. With one each aluminium, steel and brass expansion bars.
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Precision Linear Expansion Apparatus
Elongation of rod is measured by a dial indicator sensitive to 0.01mm. This apparatus is 10 times more accurate than other similar units. Includes one each aluminium, steel and brass bars.
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Conductivity Kit
Comprising rods of different materials and some of different thickness to enable students to test for themselves different thermal conductivities. Kit comprises:
| Category |
Diameter (mm) |
Qty. |
| Aluminium |
3 |
8 |
| Glass |
3 |
8 |
| Brass |
1.5 & 3 |
8 each |
| Copper |
1.5 & 3 |
8 each |
| Iron |
1.5 & 3 |
8 each |
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Bar Breaking Apparatus
To demonstrate the forces exerted on expansion and contraction. Consists of a rugged structure with slots at both ends to place an iron bar. The bar has holes at one end to hold breaking bars. With 10 breaking bars.
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Bar and Gauge
To show linear and superficial expansion. Comprises of an iron bar fixed to a support rod with a wooden handle and a gauge with a cut out to admit the bar and holes which pass the bar endways when cold but do not when hot.
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Compound Strip
For demonstrating unequal expansion of different metals upon heating. Comprises a strip of brass and iron, 20x2.5cm with wooden handle.
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Ingen-Hausz?s Apparatus
Made of stout tin sheet, nicely painted, with handle. Comprises of 4 equal rods of aluminium, copper, iron and brass, mounted in corks with one end in the tank.
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Radiation Kit
Enables students to investigate the nature of heat radiation and the radiating properties of different surfaces. The kit comprises:
» One radiant heater mounted on a base with mains lead
» One metal plate approximately 150mm square with handle
» One heat shield 220mm square with a 25mm diameter hole in the center
» One glass sheet 220mm square
» One book of aluminium leaf
» One pack of lampblack
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Calorimeter, Student
Consists of one spun inner vessel 75x50mm diameter, carried on a 100x75mm diameter outer vessel. Felt jacket is provided between the vessels and also at the bottom of the outer vessel for proper insulation. Fitted with a Bakelite cover with two holes. One hole is for rubber stopper which will hold the thermometer and the other hole is for the stirrer. Complete with rubber stopper, stirrer and washer, but without thermometer. -01 | Aluminium construction. | -02 | Copper construction. |
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Calorimeter, Electric (Joule?s)
For determination of specific heat capacity of the liquid by electrical method. Consists of an inner vessel 75x50mm diameter, carried on a 100x75mm diameter outer vessel. Fitted with a Bakelite cover with two 4mm sockets which connects to a 6 ohm heating coil having maximum current capacity of 1A. Complete with rubber stopper for holding thermometer (not supplied) and a stirrer.
| -01 |
Aluminium construction. |
| -02 |
Copper construction |
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Steam Generator
Copper body and conical top. Fitted with inlet and outlet tubes and water gauge.
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Ripple Tank
Useful for demonstration of wave patterns. Consists of a metal tray with a plate glass base and detachable legs. A pair of support rods with clamps is provided to carry the wave generation system. A set of 4 metal reflectors is supplied consisting of a pair of straight reflectors 150x25mm, a curved reflector of 215mm chord length x 25mm high and a short straight reflector 25x25mm. A set of 4 loose gauze strips is provided to reduce unwanted reflections. The ripples are produced by a small 1.5V to 4.5V D.C. electric motor mounted at the centre with a row of holes to mount the spherical dipper for the production of circular ripples. Complete with accessories.
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