Reference no: EM13287023

Materials: • U-tube mounted on wood (each arm is about 22 cm long) • Small glass funnel • Thin rubber sheet (5cm by 5cm) • Tall glass container or beaker about 1000 cu.cm capacity • Standard masses: 100g, 200g, 300g, 400, 500g Procedure: The centimeter(cm), is used here for measuring heights of liquid columns for your convenience. However, you will need to convert cm to meters(m) to enable you to use the SI unit of pressure which is Pa. 1. Stretch the rubber sheet to cover the mouth of the glass funnel and secure it with a string or tape. Then measure the diameter of the rubber sheet on the funnel's mouth. 2. Fill the U-tube arms with colored water up to about 1/3 full from the bottom of the tube using dropper. (take care not to introduce air pockets or bubbles inside the U-tube.) Set a ruler beside each arm of the U-tube and secure the masking tape. 3. Attach one end of the rubber tubing to the spout of the funnel and the other end to the arm of the U-tube. Note that the atmosphere exerts pressure on the water surface in the tube. Attach the rubber sheet to the funnel. 4. Press on the rubber sheet a few times while carefully observing the liquid level in each U-tube arm. 5. Mark the sides of the glass container or beaker in cm using masking tape. Place the zero mark about 1/3 height of the beaker from the mouth. 6. Fill the beaker with colored water up to the zero mark. Then immerse the funnel about 1 cm deep with rubber sheet surface up. Question: Observe and record the levels of the colored water in arms A (in cm) and B (in cm) and Pressure (Pa).