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عرض 136–150 من أصل 1964 نتيجة
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Mystery Masses
The set includes five blocks of the same size and mass and five steel balls also of the same size and mass. Students will be surprised to observe that the blocks and balls when combined together, results in different mass in each case. The set illustrates the importance of mass distribution in determining the mass of an object.
SKU: PH10050 - Physics, Uncategorized
Newton's / Coulomb's Law Demonstration
Study the concepts of Newton?s and Coulomb?s laws with this apparatus. This apparatus can be used to demonstrate repulsion, attraction of charged bodies and provides the ability to measure the angle between the 2 strings and thus the force between the two charged spheres. The charge can be provided by a Wimshurst machine or a Van de Graff generator or by simply rubbing a plastic rule with on a duster. Includes manual.
SKU: PH45122 - Physics, Uncategorized
Oil Film Kit
For surface tension investigations and to estimate the molecular size, using an oil film on water. Consists of 2 trays, 4 metal brooms, 8 leveling wedges, 16 mounted wire loops, 8 graticules and special holders, olive oil,8 beakers 10 ml, lycopodium powder, 2 dispensers, camphor, paraffin wax, vegetable black, one paint brush, one paint can and 2 sponges.
SKU: PH10700 - Physics, Uncategorized
Optical Bench, Junior
On wooden base, with 1.5 meter scale, with six sliding bases. Each siding base is with an index mark, a brass pillar and locking screw, with following accessories: 1. One lamp house with 230 V lamp. 2. One object screen, metal, white. 3. One lens holder for 38 mm diameter Lenses. 4. One receiving screen, metal, white, with slot for squared paper on reverse. 5. One object needle, mounted in brass rod. 6. One plane mirror in metal frame. Each of these accessories is mounted on a 6 mm brass rod which fits into the pillars and is adjustable for height.
SKU: PH30518 - Physics, Uncategorized
Optical Bench, Wooden
A wooden base board with one meter scale divided into mm with following accessories : 1. One each White face object and receiving screens each 150 x 100 mm, with aperture, mounted on wooden base with an index mark. 2. Two plane mirrors 150 x 100 mm mounted as above. 3. One lens holder V shaped, wooden. 4. One needle vertically mounted in a short wooden rod, on base. 5. One candle holder on base. The components have the same optical center height.
SKU: PH30515 - Physics, Uncategorized
Optical Bench
Bench has two steel rods, one of which is graduated in mm with heavy metal end supports with leveling screws with four metal slides which slide smoothly on the bench. Two of the slides have transverse motion arrangement. Complete with two lens holders and two object needles.
SKU: PH30523 - Physics, Uncategorized
Optical Disc
A 500 mm diameter disc marked every 5° is mounted on a heavy stand and is rotatable around its centre. It can be held in any desired position. The lamp house, with a 12V 24 W special filament lamp has rotatable slots to provide light beams of varying widths and also narrow single, double and triple beams. Attached to the lamp house is an adjustable lens carrier with lens to provide diverging, parallel or converging light beams which are clearly visible in classroom. The lamp house can be held in any desired position around the disc. Optical elements are two 50 x 25 mm plane glass mirrors, and a metallic cylindrical mirror, each mounted in a holder, for reflection. For refraction, 20 mm thick acrylic semi-circular block, bi-convex lens, bi-concave lens each 140 mm long and a trapezium with 125 mm base are provided. Each of these elements has embedded magnets to hold on to the disc.
SKU: PH30360 - Physics, Uncategorized
Optical Set For Ray Track Apparatus
Comprises a white painted wooden board mounted on nonskid plastic feet, and a removable turntable about 170 mm in diameter. Two orthogonal lines along the turntables diameter divide it into four equal quadrants Just beyond the rim of the turntable, a circular scale graduated 90 – 0 – 90 – 0 – 90 °, with 1° subdivision, Also includes a ray box with a 12 V, 24 W bulb Supplied complete with a cylindrical convex lens with focal length approx. 75 mm and two double slits, giving one wide beam slit and one each of single, triple and five slits An optical set is available separately, comprising of one each of rectangular, semi-circular, right-angled triangular – 90 ° 45 ° 45° trapezoidal, biconvex and biconcave prisms.
SKU: PH30414 - Physics, Uncategorized
Pascal Ball
Complete demonstration of Pascal's Law. The apparatus shows that a change in pressure in fluids is transmitted equally in all directions to all parts of a fluid. The device contains a hollow sphere connected to a hand pump with plunger that applies pressure to fluid in the ball. The fluid exits all 10 equidistant nozzles in the ball with equal force in all directions. With instructions.
SKU: PH10626 - Physics, Uncategorized
Pascal Demonstration
To teach Pascals Law and application of hydraulic press. By alternately applying force on a large and small piston, students will experience the mechanical advantage of one over the other. This device can be used to discuss the many uses of hydraulics such as power steering, hydraulic jacks, shock absorbers and auto braking systems.
SKU: PH10625
