- Water Pressure Indicator
Learning about the water pressure without any experiment is difficult for students. The rubber film of the water pressure indicator can show its condition by depth of water and angle as a visual pattern. Students can easily understand about the property of water pressure without any electrical pressure sensors.
Specifications and Contents
- Body: Transparent acrylic plastic, φ50 x 70 mm
- L shape pipe: Transparent acrylic plastic, φ5 x 300 mm
- O ring: φ45 mm x 2 pieces
- Replacement: Rubber film 2 pieces
There is a lot of equipment for confirming that water pressure changes depending on depth. However, this Water Pressure Indicator is very unique one because it is able visually confirm that phenomenon and students can conceptually easily understand it.
The rubber films on both sides of cylinder can be dented easily by pressure of water. When students immerse the indicator in a horizontal position of cylinder into water bath, rubber films on both sides of the cylinder make dents. The indicator shows students that both dents of rubber films have the same degree (see Fig.1). It shows the same depth of water give the same water pressure.
And when students immerse the indicator in a vertical position of cylinder into water bath, rubber films on both sides of the cylinder make dent. Compared with its horizontal position, it shows students the degree of each dent of rubber films is different depending on the depth between top and bottom of cylinder (see Fig.2).may confirm that the kinetic energy (E) is proportional to the square of the velocity using this apparatus.