Bar & Gauge
To illustrate expansion of metal on heating and contraction on cooling, with steel bar of length 100 x 10 mm and plated brass gauge with a cutout to just accommodate the bar and two holes through which the bar passes when cold.
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Material Kit, Solids
Consists of two each of the seventeen blocks as follows:
- Blocks, 50 x 40 x 30 mm – Softwood, Hardwood, Paraffin wax, Aluminium, Iron and Polystyrene.
- Blocks, 20 x 20 x 100 mm – Perspex, Glass, Slate, Aluminium, Softwood, Marble.
- Block, 50 x 50 x 20 mm – Lead.
- Block, 50 x50 x 80 mm – Aluminium.
- Block, 50 x 50 x 200 mm – Hardwood.
- Block, 20 x 20 x 50 mm – Brass.
- Block, 40 x 40 x 20 mm – Iron.
Turbine / Pump Unit
This simple unit can help the student understand the operating principle of pump and turbine. The unit consists of a rotor attached to a pulley via a shaft. It also includes 3 metal nozzles and a stopcock. When driven by a motor, the unit works as a pump, raising the water to higher potential energy. Whereas when the rotor is made to rotate by flowing water, the unit acts as a turbine.
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