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To illustrate images produced by small apertures. Comprises a polished wooden box with a ground glass screen at one end and a hole at the other.

Students can quantitatively see how pressure on an object changes as it moves deeper under a fluid with this interactive density pressure manometer activity. A hollow drum covered with a rubber membrane is connected to an open end manometer. When the drum is pushed under water the pressure on the rubber membrane increases the pressure inside the tubing, causing the manometer fluid level to change. The kit includes a tall vertical container, rubber drum, tubing open end manometer and demonstration guide.

Right angle, polished faces, edges slightly beveled, 90°x45°x45°.

(Falling Body Apparatus) Showing that horizontal and vertical motions are independent of each other. Consists of a wooden block 190 x 58 x 30 mm approx. with a pivoted L-section spring loaded metal launching bar with a trigger catch. On releasing the catch, one steel ball drops vertically while the other is projected horizontally, both hitting the floor at the same time. Supplied with 2 steel balls with storage recess in the block.

The Pulley Demonstration Set is designed to illustrate the working
principle of simple machines. From the wheels on a bicycle to the gears in
a car, the Pulley Demonstration System helps explain how things work. It
helps student to understand the concepts of the mechanical advantage,
the efficiency of fixed and moveable pulleys etc. Students perform
quantitative experiments on fixed and moveable pulleys, trains of fixed
and moveable pulleys, the wheel and axle and the capstan etc.
The set includes:
Wooden base includes : Size – 81 x 20 cm. capstans,
sockets (2) and an eye hook.
Rods : 3 (Diam – 12.5 mm x L- 81 cm)
Collars with hook : 8
Right angled clamps : 3
Wheel axle : 1
Bar for tightening : 1
vertical rods
Masses : Slotted brass weights. 2×10 gm,
2×20 gm 2×50 gm, 4×100 gm,
4×200 gm,1×500 gm Total 15 weights.
Weight hangers : Brass hangers .5×50 gm,1×20 gm,1x 10 gm