Breckland Scientific 2023 Catalogue

Springs

Springs

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1 EXTENSION SPRINGS - SHORT Ideal for demonstrating Hooke’s Law, these springs have loops at each end and can accept up to 600g without the spring deforming. Two sizes are available, with spring diameters of 16mm or 19mm. Compressed length (excluding end loops) 20mm. Spring constants: 16mm diameter is approx. 25 N/m; 19mm diameter is approx. 15 N/m. Sold in packs of 100 springs.Ideal for demonstrating Hooke’s Law, these springs have loops at each end and can accept up to 600g without the spring deforming. Two sizes are available, with spring diameters of 16mm or 19mm. Compressed length (excluding end loops) 20mm. Spring constants: 16mm diameter is approx. 25 N/m; 19mm diameter is approx. 15 N/m. Sold in packs of 100 springs. Cat No. Description Price Per SPR-300-100 Extension Spring - Short -16mm Diameter 13.38 100pk SPR-300-150 Extension Springs Short - 19mm Diameter 18.89 100pk 2 EXTENSION SPRINGS - LONG Suitable for oscillations, SHM etc. Loops at each end. Length: 100mm x 6mm. Cat No. Description Price Per SPR-250-100 Extension Spring - Long 10.09 10pk 3 EXTENSION SPRING - EXTRA LONG This extra long spring is useful for demonstrating transverse and longitudinal waves, reflection of pulses, standing waves, etc. Closed length 3 metres, extended length about 10 metres. Diameter : 14 mm. Cat No. Description Price Per SPR-270-100 Extension Spring - Extra Long 19.25 ea. 4 SLINKY SPRINGS Slinky-type steel springs, useful for demonstrating wave motion when placed on a bench top, e.g. transverse and longitudinal waves. Also suitable to show the reflection of pulses. Cat No. Description Dia. Closed Length Price Per SWA-400-100 Slinky Spring 50mm 75mm 5.14 ea. SWA-400-150 Slinky Spring 75mm 100mm 7.20 ea. SWA-400-200 Slinky Spring 70mm 165mm 9.85 ea. 5 HOOKE’S LAW SPRING SET Set of five springs, each with a different spring constant, for in-depth investigations of Hooke’s law experiments. Springs range from 8 to 10 mm diameter and 58 to 66 mm length (including end loops). The five spring constants and corresponding weight limits are:

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Extension Springs - Short

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Extension Springs - Long

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Extension Springs - Extra Long

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10g/cm & 100g 20g/cm & 225g 50g/cm & 550g 100g/cm & 1100g 200g/cm & 2200g Cat No.

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Description

Price Per

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SPR-350-050 Hooke’s Law Spring Set

3.40 5pk

6 SMART SPRING A 5mm dia. x 12mm (when closed) spring made from shape memory alloy. At room temperature this spring is soft enough to pull out to approximately 50mm by applying a small force. When heated to 70°C by passing an electric current through it, the spring contracts to its original length with a useful pulling force (equivalent to lifting a 0.5kg weight). Cat No. Description Price Per SMS-150-100 Smart Spring 7.79 ea.

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Slinky Spring

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Hookes Law Spring Set

Smart Springs

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415

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