Metric Measurement Lab Report

Purpose: To learn about the international system of units (SI), to become familiar with common lab equipment and techniques, to gain proficiency in determining volume, mass, length, and temperature of a variety of items using common laboratory measurement devices, to learn to combine units to determine density and concentration, and to use laboratory equipment to create serial dilutions and determine the density and concentration of each dilution.

Purpose: To become familiar with the International System of Units and common laboratory equipment and techniques. To learn how to determine volume, mass, length, and temperature of a wide variety of items. To learn how to calculate density and concentration of dilutions.

The calculated volume used the length x the width x the height to get its volume. I feel the measurement method would be more accurate as it is using exact measurements. Archimedes Principal could possibly be flawed if not done exactly right.

There are several sources of error to this experiment due to random and systematic errors. The only source of random error was the measurement that we took through the graduated cylinder which was only accurate to the nearest 1%. We took the largest error from this one percent, which was +/- 3. The largest relative error this yielded was only 3%, so this did not affect how precise this experiment was too much. We can still make this more precise by making the masses of the water larger. For example if we started the masses at 300mL and went up by 50mL, the largest error this would yield would be 2% due to the largest error being +/- 5. This would cause smaller errors in the amount of water.

Find from the “Starting” and “stopping” locations of where you are going to measure. i.e., I am going to have Charles lay down and I will measure from the bottom of his feet to the top of his head

Introduction: Accuracy and precision were the major aspects of the lab. Accuracy is how close the average of the measured values are to the actual value. Precision is the closeness of repeated measurements. In the lab, the aim was to get as close as possible with both accuracy and precision when determining the mass and volume of the spheres. The mass was determined by weighing the spheres on the Analytical Scale and Triple Beam Balance Scale. The volume is determined by measuring with a ruler and by water displacement. The standard

Place the object of your choosing on the triple beam balance's plate. 3. Use the weights to get the other side of the scale on zero to get the mass. 4. Next, place the object in a graduated cylinder filled with

Seven various household objects were chosen to measure using a digital gram scale. Each object’s mass was estimated by lab students and recorded in data table 4. A quarter, ball point pen, rubber bulb, large paper clip, green crayon, house key and a copper penny masses were estimated and recorded in data table 4. Each object was placed on the scale individually and its actual measurement was recorded in data table 4. As we started estimating the household objects we were often not correct in our estimations. As we measured more and more objects, we got better in our estimations by comparing objects with known masses and comparing them with the unknown

Throughout lab one we were introduced to many different forms of measurement, whether its using a ruler too measure length, a digital scale to measure weight, and also many different sized and shaped flasks to measure different volumes. Another key measurement of this lab was to teach the

Luminosity is the brightness of a star. It is used to measure the star’s distance from a planet the brighter the star the closer it is.

Also, we need to understand words like meniscus, parallax, the difference between accuracy and precision, the use of a metric system, the use of scientific notation, and etc. Furthermore, the purpose for doing this experiment is to understand why measurements is not precise and how to describe uncertainty and error. This is important because we’re going to face the same problem every time we do the same type of lab, and when the

The purpose of this particular lab is to learn the magnitude scale and more about an alternate measurement astronomers use to designate the luminosity and apparent brightness of stars. When the Greek scientist Hipparcos determined the brightness of stars he did it by eye. The first stars that came out at night were the first importance and today we call those stars “first magnitude”. After the year’s astronomers start realizing how some stars are brighter than others and that's when they form a magnitude scale. Magnitudes and brightness are related to each other, but magnitude scale is a difference subtractive scale and the apparent brightness makeup a multiplicative scale. I believe that it's important to do this lab because we can understand

For my Senior Project, I am submitting a lab which I completed in AP Chemistry. In the Gravimetric Analysis of Calcium and Hard Water Lab my lab partner and I conducted an experiment in which we calculated the mass of the precipitate formed by the mass of the isolated analyte present in the reactants before the reaction. During our experiment, we used resources such as graduated cylinders, sodium carbonate, bunsen burners, an analytical balance, watch glass, filter paper, a funnel, tongs, and an oven. The lab equipment allowed us to effectively precise measurements of water hardness. For example, the analytical balance gave us a more precise measurement than a triple beam balance would. The temperature of the burners as well as the temperature

We have secured two meter stick end to end together to a table zero facing downwards and released the balls from three different heights, three times each. I asked my partner to look where the ball bounces and recorded the bounce heights in the table below. Tennis Ball Drop Height (cm) 1st drop Bounce height (cm) 2nd drop bounce height (cm) 3rd drop bounce height (cm) Average Bounce Height 50 27.6 32.1 30.2 30.0 100 54.5 55.5 57.4 55.8 150 89.0 87.5 30.2 88.0

Students will hypothesize as to whether an object can be made heavier with different substances.