Physics

Pulley mounted in robust frame with two clamping screws for mounting onto bench up to 38 mm thick or standard retort rod. Dimensions (Dia.): 70 mm.

Pulley mounted in metal frame. Suitable for clamping to bench, table etc. up to approx. 30 mm thick. Dimensions (Dia.): 50 mm.

The kit makes use of an empty 1 or 1.5 L plastic bottle. The special cap, nozzle and fins supplies are attached to the bottle. An air tube and adapter are supplied to connect the bottle to cycle pump. The bottle is part filled with water and air pumped into the bottle. The pump connector on the bottle releases at set pressure and the rocket is then launched. The rocket will reach height of approximately 20 metres. The bottle and cycle pump are not supplied, all spares available. Complete with full instructions.

Spare white cap and 'O' ring for Water Rocket Kit RO12950.

Spare red fin (1 only) for Water Rocket Kit RO12950.

Spare black nozzle for Water Rocket Kit RO12950.

Design and make your own realistic rockets and launch them safely to heights of up to 100 metres. The rockets are made by rolling paper around a plastic tube and attaching a plastic nose cone. They are propelled using an electrically-controlled compressed air launcher which gives near-chemical performance but at zero cost per launch. Provides opportunities for exploring basic rocket science enhancing subject teaching in design and technology, science and maths. Contains launcher and key switch 'firing' unit. Uses any cycle or car foot pump (not supplied) and requires alkaline PP3 batteries. Please note: packs of plastic nose cones are available separately.

A pack of assorted coloured soft plastic nose cones to fit rockets made with the 21.5 mm diameter mandrels.

To fit the 21.5 mm diameter launch tube of the Rocket Factory.

This Circular Motion Apparatus comprises small DC motor mounted at the end of suspension rod and includes three different rubber balls with suspension chains. For demonstrating the laws of uniform circular motion. Instructions included.

This rotary investigation apparatus allows students to explore all aspects of rotary motion in a simple but effective way. The apparatus can be used to demonstrate: rotary motion; centripetal force; orbits and satellite motion. Investigate: how force varies with speed; how speed varies with radius; how speed varies with mass. Supplied with full instructions.

Original all metal Gyroscope complete with pull cord and stand.

Chrome plated steel.

Chrome plated steel.

Chrome plated steel.

Chrome plated steel.

Chrome plated steel.

Green tennis balls. Suitable for investigating elastic collisions.

Tub of 72 table tennis balls. Diameter: 40 mm.

Tub of 72 table tennis balls. Diameter: 40 mm.

Colour-coded spring balances, in clear bodies with visible spring mechanisms. Calibrated in both newtons and grams.

Colour-coded spring balances, in clear bodies with visible spring mechanisms. Calibrated in both newtons and grams.

Colour-coded spring balances, in clear bodies with visible spring mechanisms. Calibrated in both newtons and grams.

Colour-coded spring balances, in clear bodies with visible spring mechanisms. Calibrated in both newtons and grams.

Colour-coded spring balances, in clear bodies with visible spring mechanisms. Calibrated in both newtons and grams.

Colour-coded spring balances, in clear bodies with visible spring mechanisms. Calibrated in both newtons and grams.

Colour-coded spring balances, in clear bodies with visible spring mechanisms. Calibrated in both newtons and grams.

Colour-coded spring balances, in clear bodies with visible spring mechanisms. Calibrated in both newtons and grams.

Closely wound steel springs with loops at each end. Spring constant approx. 0.2 N/m.

For demonstrating Hooke's Law. 20 x 16 mm, approximately 30 N/m.

Flat section steel wire in helical coil. Diameter 75 mm.

Flat section steel wire in helical coil. Diameter 75 mm.

Extension springs with known spring constant.

Extension springs with known spring constant.

A set of five springs of the same length but with different spring constants. Each have an eye at one end and hook at the other. Spring constants are: 2.5, 6.0, 10, 15, and 26 N/m.

Comprising FO140110 Student Timer, and two TI170200 Photogates. Ideal for setups with air tracks, dynamics tracks, or other timing experiments which require light gates. Leads not included.

A double photogate with built-in timer and display, which is capable of precise speed measurements, in addition to all the usual tasks of single photogate. • Incorporates timer with display no separate timer required • Easy to operate • Double light barrier direct readout of speed • Laser optics give high precision measurements • Expandable with external sensors (e.g. microphones) • Use two SpeedGates for all the traditional collision experiments • Several SpeedGates can be daisy chained • Pendulum period mode prevents off-by-one errors • Auto rotating display Speedgate can be used as stand-alone unit or pair can be used to carry out all the experiments you can do with two traditional photogates and universal timer plus much more: with the precisely spaced double laser system you get speed readings without length measurements or calculations. The traditional passage time measurements are still possible, if preferred, for teaching purposes. The display divides into two parts giving you immediate access to all results. An adjacent status area shows when light rays are blocked, the state of external inputs etc. SpeedGate is battery powered so can be used as stand-alone unit no cables are required. However, the apparatus can also be powered via USB cable if preferred. It is operated using three pushbuttons, which control primary mode, secondary mode and reset. The reset button also functions as power switch. The primary and secondary modes each correspond to one part of the display. Suggested experiments: • Kinematics of uniformly accelerated motion • 'g' by freefall • Newton's second law • One-dimensional elastic and inelastic collisions • Mathematical pendulum • Speed of sound (requires 2 x SO150400 microphones) Two SpeedGates can be used for collision experiments; the double display will show the two latest measurements. Connect two (or more) SpeedGates together, using the Speedgate Cable, to measure the time interval between the gates e.g. for acceleration experiments. The whole chain is reset with one button press. The timer functions can even be used with external signals e.g. two microphones (SO86270) and SpeedGate makes complete setup for measuring the speed of sound. Easy to work with the display even orients itself automatically when rotated. The Bundle TI180110 comprises two Speedgate units a connecting cable.

Connector cable for the Frederiksen Speedgate TI170100.

A double photogate with built-in timer and display, which is capable of precise speed measurements, in addition to all the usual tasks of single photogate. • Incorporates timer with display no separate timer required • Easy to operate • Double light barrier direct readout of speed • Laser optics give high precision measurements • Expandable with external sensors (e.g. microphones) • Use two SpeedGates for all the traditional collision experiments • Several SpeedGates can be daisy chained • Pendulum period mode prevents off-by-one errors • Auto rotating display Speedgate can be used as stand-alone unit or pair can be used to carry out all the experiments you can do with two traditional photogates and universal timer plus much more: with the precisely spaced double laser system you get speed readings without length measurements or calculations. The traditional passage time measurements are still possible, if preferred, for teaching purposes. The display divides into two parts giving you immediate access to all results. An adjacent status area shows when light rays are blocked, the state of external inputs etc. SpeedGate is battery powered so can be used as stand-alone unit no cables are required. However, the apparatus can also be powered via USB cable if preferred. It is operated using three pushbuttons, which control primary mode, secondary mode and reset. The reset button also functions as power switch. The primary and secondary modes each correspond to one part of the display. Suggested experiments: • Kinematics of uniformly accelerated motion • 'g' by freefall • Newton's second law • One-dimensional elastic and inelastic collisions • Mathematical pendulum • Speed of sound (requires x SO150400 microphones) Two SpeedGates can be used for collision experiments; the double display will show the two latest measurements. Connect two (or more) SpeedGates together, using the Speedgate Cable, to measure the time interval between the gates e.g. for acceleration experiments. The whole chain is reset with one button press. The timer functions can even be used with external signals e.g. two microphones (SO86270) and SpeedGate makes complete setup for measuring the speed of sound. Easy to work with the display even orients itself automatically when rotated. The Bundle TI180110 comprises two Speedgate units a connecting cable.

This Photogate Unit is specially designed to be used together with the Electronic Counter or timer FO140110. It can be used as an optical switch, activated when the light beam is broken and for pendulum period measurements, air track timing, measuring period of rotation etc. The unit is made from impact-resistant plastic with threads for vertical and horizontal mounting using the supplied 10 mm diameter support post. The Photogate Unit is supplied with powerful red transmitter diode, in front of which is a 1 mm slit, and two LEDs on the sides of the unit (red for transmitter, green for receiver), indicating the function. The Photogate Unit can be connected directly to the DIN sockets of the counter and additional photocells can be daisy-chained and connected to the same counter input, for measurement of acceleration etc. Dimensions: 160 x 120 x 28 mm (W x H x D). Gap width: 90 mm.

With two clear glass faces.

This apparatus offers a clear and easy way to observe magnetic fields generated by a constant electrical current. Iron filings can be scattered on the clear surface which passes through the coil and when a current then flows around the coil, the magnetic lines of force will be shown by the alignment of the filings. The apparatus can also be used in conjunction with a magnetic field sensor and/or datalogger. Requires high current laboratory power supply (8-10 A) for best effect. Weight: 1.2 kg. Dimensions (L x W x H): 300 x 200 x 250 mm.

Solenoid - Clear base unit for bench or OHP use, to demonstrate electromagnetic fields around conductors. Available as three different models. Each mounted on base measuring L150 x W150 x H45 mm.

Vertical wire - Clear base unit for bench or OHP use, to demonstrate electromagnetic fields around conductors. Available as three different models. Each mounted on base measuring L150 x W150 x H45 mm.

Twin coils - Clear base unit for bench or OHP use, to demonstrate electromagnetic fields around conductors. Available as three different models. Each mounted on base measuring L150 x W150 x H45 mm.

A double wall tube with iron filings encased between the two layers to show 3-dimensional view of the magnetic field around the magnet. Dimensions 130 x 90mm (L x dia.).

A white frame with transparent window containing magnetic powder in a water based solution for showing magnetic field patterns. When a magnet is present the particles of iron inside become slightly magnetised, so they attract each other and cluster into the lines that show the magnetic field patterns. Includes a pair of small ferrite block magnets and a pair of plastic cased bar magnets and teachers leaflet. Size 225 x 130 x 15 mm.

A free moving magnet mounted in gimble to show the true shape of magnetic fields far better than iron filings or plotting compasses.

Iron filings in a plastic shaker, ideal for magnetic flux experiments. Size 80 mm, approx. 225 g of Iron filings.

This amazing flexible sheet 'visualizes' the direction of magnetic field lines. The sheet is coated with translucent microspheres (hollow capsules) containing very small magnetic nickel flakes suspended in an oil. The flakes inside the spheres align along the field lines when magnetic field is present. The alignment of the flakes, and thereby the magnetic field direction, is visible because of reflected light from the flakes. Useful for quality control, product demonstration, reverse engineering, and educational purposes. 300 x 300 mm, non-laminated film which is great for demonstration purposes as it can be cut to any size or shape as required, is highly flexible and can easily be wrapped around objects. good example is to wrap it around copper tube to 'view' the progress of neodymium magnet as it slowly descends through the tube. The film is also useful for viewing complex magnetic pole geometry close to the magnetic poles, although it does require fairly strong magnetic fields.