Stop the timer the instant the marble touches the bottom of the cup. ![]() Simultaneously release the marble and start the stopwatch. ![]() Pick up one of the clean glass marbles and position it very carefully over the liquid so that it barely touches the surface of the oil. (The reading on the cup also indicates the volume of the oil in milliliters).Īsk someone to stand ready with the stopwatch. This height should be expressed in centimeters. Subtract the figure in Step 1 from this figure. Put about half a bottle of regular motor oil into the cylinder. Weigh a clean empty measuring cup (a cylinder) on the gram scale. Once he figures that number (it's measured in centimeters per second), he can plug in the other variables into a formula to gauge the viscosity of oil at room temperature. Although, it involves some knowledge of algebra, a basic experiment can measure the time it takes for a round sphere to drop from the surface of a liquid like oil, to the bottom of a glass measuring cup or other cylinder. There are scientific ways to measure viscosity with a viscometer but, a do-it-yourselfer's kitchen has most of the tools necessary to obtain a simple measurement of a motor oil's viscosity. Measuring cup image by Antonio Oquias from
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |