Physics INVSTIGATORY PROJECT
COMPLETED BY YUVRAJ
Physics INVSTIGATORY PROJECT
E N D
Presentation Transcript
KENDRIYA VIDYALAYA, DEOGARH Physics Investigatory Project :- VISCOCITY OF FLUIDS
CERTIFICATE This is to certify that YUVRAJ SINGH of class 11th has successfully completed his investigatory project on topic VISCOCITY OF FLUIDS, during the year 2022-23 and submitted the project as compiled in the following pages. Submitted To :- AMAR SIR Submitted By :- YUVRAJ SINGH
ACKNOWLEDGEMENT I would like to express special thanks to my School, who gave me the golden opportunity to do this wonderful project on topic VISCOCITY OF FLUIDS, which also helped me in doing a lot of research and I came to know so many new things.
INDEX 1. Objective 2. Purpose 3. Materials Required 4. Procedure 5. Observations 6. Conclusion
THE OBJECTIVE :- To determine the differing viscosities of selected liquids by passing a marble through the substances and measuring the resultant velocities.
PURPOSE :- To find out whether milk, glycerin, honey, cooking oil, hand sanitizer, syrup, and water has the most viscosity.
MATERIALS :- • Tall Graduated Cylinder • Marble • Stopwatch • Notebook and Pen • Cooking oil • Syrup • Honey • Glycerin • Honey • Hand Sanitizer • Milk
PROCEDURE :- 1. Fill the graduated cylinder with one of the sample liquids. Leave a couple of centimeters at the top so it does not overflow. Be sure to fill the cylinder up to the same amount of liquid each time. 2. Hold the marble at the opening of the graduated cylinder in one hand and the stop watch in the other hand. 3. Simultaneously drop the marble and start the stopwatch.
4. Stop the timer when the marble passes through the liquid and touches the bottom of the cylinder. 5. Record the name of the liquid you tested, the original height of the liquid, and how long it took for the marble to fall in seconds. 6. Repeat the experiment 2 more times for each liquid so there is enough data to take an average. Calculate the average time. Average time = (time 1 + time 2 + time 3) / 3
7. Calculate the average velocity of the marble through the liquid. The distance is the height of the liquid, and the time will be the average time calculated in Step 6. Velocity = distance / time 8. Repeat the experiment testing other liquids.
CONCLUSION :- Out of all the liquids tested (honey, water, milk, cooking oil, glycerin, hand sanitizer, and syrup), honey is the most viscous and milk is the least. During observations, found out that honey and hand sanitizer were very close compared to other liquids but at the end, honey beat hand sanitizer. Have also found that there is inverse relationship between the velocity of an object passing through a liquid and the viscosity of that liquid. Engineers, doctors, volcanologists, and scientists all use viscosity in practical life.
BIBILOGRAPHY :- - Help of internet - Help of Friends - Help of Friends
