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STEEL SPHERES 19mm set of 100 (0119)
Solid steel spheres, hardened and chrome plated 19mm set of 100
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PENDULUM ON STAND (0120)
Designed for performing a number of pendulum related experiments quickly and accurately. Comprises a meter rule with zero at the bottom, graduated in millimeters and reading every centimeter attached vertically on a support rod. Towards the upper end of the rod a hanger is fixed, from which 3 pendulum bobs, each of 25mm diameter and of different material - wood, steel and aluminium, are suspended. A sliding index mounted on the meter rule can be adjusted for vertical position and has a projection through which first pendulum cord passes thus controlling the effective length of suspension of first pendulum. Complete assembly mounted on a stable metal stand. The hanger has provision for controlling the length of suspension of each pendulum
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PENDULUM CLAMP (0121)
Connects to any vertical or horizontal rod support up to 18mm. L shaped plated metal strip has three knobs along its length with respective holes for mounting up to 3 pendulums on the same horizontal line and adjusting their height. The smaller arm of the metal strip has a boss attached to it for clamping securely on a rod support.
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COMPOUND PENDULUM, REVERSIBLE (0122)
Steel bar of length about 1 m in length drilled every 5cm, with removable knife edges to adjust the length of suspension. Includes metal bracket supports for wall mounting.
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COMPOUND PENDULUM, KATER'S, REVERSIBLE (0123)
Consists of plated metal rod about 120cm long, with one pair each of small and large brass and wooden masses, that can be adjusted along the length of the rod and two steel knife edges set in adjustable metal holders. Includes metal bracket supports for wall mounting.
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NEWTONIAN DEMONSTRATOR OR COLLISION BALLS (0124)
Dramatically illustrates Newton's third law of motion and works well on an overhead projector. Its graphical demonstration of elastic collisions qualitatively, is far superior to any other device on account of its size and total absence of friction. The unit is completely assembled and consists of a frame with six plated steel balls of 19 mm diameter, suspended on the frame through lightweight cord. By pulling and releasing the different number of balls, collision results among the balls can be observed to draw many interpretations.
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NEWTONIAN DEMONSTRATOR OR COLLISION BALLS METAL FRAME (0124)
Dramatically illustrates Newton's third law of motion and works well on an overhead projector. Its graphical demonstration of elastic collisions qualitatively, is far superior to any other device on account of its size and total absence of friction. The unit is completely assembled and consists of a frame with six plated steel balls of 19 mm diameter, suspended on the frame through lightweight cord. By pulling and releasing the different number of balls, collision results among the balls can be observed to draw many interpretations.
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NEWTONIAN DEMONSTRATOR OR COLLISION BALLS WOODEN FRAME (0124)
Dramatically illustrates Newton's third law of motion and works well on an overhead projector. Its graphical demonstration of elastic collisions qualitatively, is far superior to any other device on account of its size and total absence of friction. The unit is completely assembled and consists of a frame with six plated steel balls of 19 mm diameter, suspended on the frame through lightweight cord. By pulling and releasing the different number of balls, collision results among the balls can be observed to draw many interpretations.
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FALLING BODIES APPARATUS (PROJECTILE APPARATUS) (0125)
For demonstrating the independence of horizontal and vertical velocities of bodies falling freely under the effect of gravity. The apparatus consists of a wooden block on top of which is pivoted a spring loaded L?section metal launching bar having a trigger catch. A small recess near either end of the metal bar serves to locate 1 9mm steel balls. Releasing the catch makes one ball drop simply vertically, while the other one is projected horizontally. Both the balls simultaneously hitting the floor substantiate the fact that the vertical velocities of both the balls are same at any instant. Supplied complete with a pair of steel balls, which may be stored in a covered recess in the wooden body.
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NEWTON'S SECOND LAW OF MOTION APPARATUS (0126)
A complete piece of instrument demonstrating the Newton's Second Law of Motion. Comprises a spring loaded steel rod mounted in two brackets on a metal base. Also includes one solid steel sphere and one steel sphere with a hole to slide it into the rod. Complete with a rod mounted on the base for fixing the apparatus on a suitable retort stand. Spring compressed by the handle which can be locked into two different positions corresponding to two potential energy levels. Once spring is compressed, the sphere with the hole slides onto one end of the rod, while other is placed in a small recess on the opposite side of the base. On releasing the handle, the potential energy of the compressed spring imparts horizontal velocity to the solid sphere while the other sphere simply falls vertically. Falling of both the spheres on the ground implies that vertical and horizontal velocities are independent.
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ATWOOD'S MACHINE (0127)
For studying the motion under the effect of gravity of two?mass system connected through a lightweight cord, one on either side of a simple pulley. The apparatus comprises two long metals rods, one rod having a well-balanced 10cm pulley mounted at its one end on near-frictionless bearings and threads at other end for attaching it to the second rod to get a total effective working length of 245cm. A scale 0- 245 x 1 cm continues from the top of rod with pulley to the bottom of the second rod. Includes electromagnetic release arrangement, set of 2 pairs of masses, Loading Masses - 1 x 1 g, 2x2g, 1 x4g, table/ring brackets, wall mounting clamps and lightweight cord.
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'g' BY FREE FALL APPARATUS, MAGNETIC RELEASE (0128)
For determination of acceleration due to gravity 'g' by measuring the time of fall of a steel spherical ball through a known distance. This apparatus consists of an electromagnet driven by a solenoid (for prompt release of the steel sphere on being disconnected) and gate switch unit mounted on a base. Both, electromagnet and the bottom unit provided with 4mm sockets for electrical connection. When the steel sphere strikes the plate of the gate switch unit near the bottom, the same is communicated to the timer by make/break of continuity to trigger the stopping of timer.
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'g' By FREE FALL APPARATUS, MECHANICAL RELEASE (0129)
An excellent apparatus for determining the value of acceleration due to gravity 'g' to a better accuracy. The specially designed release mechanism permits use of spheres of different material [magnetic or non-magnetic) and sizes. Pulling the release pin of the sphere at the top breaks the continuity of wires connecting the release plate to the timer, starting the timing process, which is stopped immediately when sphere strikes the bottom plate. Height of release plate and bottom strike plate are adjustable. The complete assembly mounted on aluminium extrusion with a scale 0-100cm graduated in millimeters. By knowing the distance between the release plate and lower striking plate, and the time of fall, the value of 'g' can be easily evaluated.
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EVENT TIMER (0130)
A compact and versatile timer featuring 5 digit, 7 segment LED display, operating on 220V AC, 50 / 60Hz, for use with apparatus such as "g by free fall" or wherever manual timing is needed. The complete unit housed in a two part aluminium alloy extrusion with insulated plastic side supports, having overall dimension of about 250x165x115mm (LxWxH). Casing specially designed for stability on the bench while providing easy viewing. Main features include maximum time measurement up to 9999.9 seconds and user settable as well as auto resolution modes [with maximum resolution of 0.0001 s, manual operation through push button controls provided (START, STOP, RESET / HOLD & RECALL - each in different color for quick and easy identification), "Auto Mode" remote operation through wired controls having separate START / STOP control in MOMENTARY mode and single control in MAINTAIN mode, and storing the 1st and last reading in the memory. With fused input and indicator ON / OFF.
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CENTI SECOND TIMER (0131)
Particularly suitable for 'g' by Free Fall Apparatus with magnetic release. Housed in a sturdy, well painted, sheet metal box, features 3-digit LED display on the top along with mains ON/OFF switch and timer reset switch. Another switch provides for activating solenoid of electromagnet, which also triggers the START of timing. Two pair of 4mm sockets provided, clearly indicating their function ?one pair marked "COIL:' for connecting to electromagnet and other pair marked "GATE" for connection to lower platform that Stops the timing process. Operates on 220-240V AC, 50/60Hz
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