Breckland Scientific 2021 Catalogue

Forces & Motion

Simple Harmonic Motion

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1 LASCELLS BARTONS PENDULUMS Barton’s pendulums is a well known resonance effect but usually difficult to set up and store. This apparatus stores flat and can be quickly unfolded to show the resonance between similar length pendulums. Once the demonstration is over it can be closed up again to safely store the pendulum arrangement until required again. Cat No. Description Price Per FMF-535-100 Bartons Pendulums 76.75 ea. 2 LASCELLS DOUBLE COMPOUND PENDULUM This apparatus provides a dramatic demonstration of physical pendulum behaviour. For small amplitudes of oscillation the pendulum exhibits predictable behaviour; however for large amplitudes the motion is chaotic. Students will be amazed at the apparent random oscillation and that the motion is different every time. In addition the apparatus may be locked in two positions giving two different length physical pendula. The variation in period between the physical pendulum and an approximated simple pendulum can be demonstrated. From the given data of mass distribution the centre of oscillation may be determined and therefore a value for g may be found. Cat No. Description Price Per FMF-335-100 Double Compound Pendulum 45.61 ea.

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3 PENDULUM BALLS A solid metal sphere with small hook. Cat No. Description

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Diameter Price Per

Bartons Pendulums

FMF-250-013 Brass Pendulum Ball

13mm 1.15 ea.

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FMF-250-019 Brass Pendulum Ball

19mm 2.20 ea.

FMF-250-025 Brass Pendulum Ball

25mm 3.26 ea.

FMF-300-013 Lead Pendulum Ball

13mm 10.20 10

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FMF-300-019 Lead Pendulum Ball

19mm 17.46 10

FMF-300-025 Lead Pendulum Ball

25mm 19.98 10

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4 RED COTTON TWINE Ideal for pulleys providing high visibility. Does not fray. Cat No. Description Price Per SRG-150-100 Cotton Twine, Red 5.48 125g 5 NYLON CORD Ideal for pulleys and pendulums. 1mm dia. Available in black or white. Cat No. Description Price Per SRG-100-100 Nylon Cord - Black 6.09 50m SRG-100-150 Nylon Cord - White 5.23 50m

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Double Compound Pendulum

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Pendulum Balls

Red Cotton Twine

Nylon Cord

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