Measurement

DISCUSSION: In this investigation, the effect of electrolyte concentration, depth of electrode immersion in electrolyte, and distance between electrodes in electrolyte, on the current flow through copper electrodes were tested. Table 1 and Graph 1 display the results when increasing electrolyte concentration. Evident in Graph 1, the results contained scatter, and consisted of an outlier in the sample in which the ratio of NaCl: deionised water was 10:30mL. The outlier and scatter may have been…

Introduction This practical was an investigation involving the use of a tennis ball and a meter ruler. The tennis ball was held and dropped at a specific height above the ground. The height of the bounce was then measured. This investigation was carried out to find out whether the efficiency of the bounce varied with the height of release of the tennis ball. If the bounce were 100% efficient, then the tennis ball would have bounce off the ground and return to the starting height. Research…

Discussion In order to find the rate of osmosis at each trial, the initial mass and the final mass were determined using an electronic balance. These values were then subtracted from one another and divided by the time left in the solution, which was 20 minutes. The formula used for this process was: The general trend of the graph is that for every increase in size, there is an increase in the Rate of Osmosis. At 1cm x 1cm the points are reasonably close to one another, with the value of 110…

This occurred through passive transport and as there is no correlation between each concentration, there is also no pattern to observed. Precision refers to the closeness of two or more measurements together. In the above table, it is evident that the average weight difference for potatoes that were placed in sucrose (0.00g) and glucose (0.01g) are reliable. This can be shown through the increase of 0.01g as seen above. The potato which was…

second part of the experiment, a dry graduated cylinder was weighed, then copper pellets was added and together were weighed and their masses recorded. The cylinder containing the metal was then filled with water and the mass was taken again. These measurements were then used to find the individual masses and volumes of the water and…

the the x and z planes. This therefore potentially resulting in an effect on the motion of the bottle and the height data recorded at an unknown level; as opposed to that in theoretical conditions. Moreover, incorrect initial scaling of length measurement on the data analysis soft-wear, could have resulted in incorrect heights being deemed to have been reached by the bottle rocket. The nature of the freeze frame data analyzation on Pasco also resulted in time recordings that had slight…

affecting the results of the experiment. Ensure that a mortar and pestle is used to grind the baking soda to get rid of any clumps that could affect the results of the experiment. Grind the clumps before measuring the powder to ensure accurate measurements will be…

Kirkpatrick’s Taxonomy is the most widely used model for evaluation of training programs and is known as, “The Four Levels of Learning Evaluation.” This model was first developed by Donald L. Kirkpatrick in 1959 as a series of articles. This model is used for an organization to have a meaningful evaluation of learning programs within the company. As the organization progresses through the four stages of the model the difficulty increases, however, the knowledge learned during the program…

motion sensor, high resolution force sensor, and motion sensor. Further, this experiment sought to clarify the circumstances under which the instruments fail to comply with expectations. Results/Data Part 1: The Motion Sensor Motion Sensor’s Measurement of Distance on ‘Short Range’ 1 m Closest Measurable Distance on ‘Short Range’ 0.12 m Closest Measurable Distance on ‘Long Range’ 0.12 m Distance from Center Line for First Detection of Block on ‘Short Range’ 0.05 m Distance from Center Line…

is directly proportional and that the small difference is due to systematic errors in the practical. Errors Random errors: A random error is an error in which its effect on measurements vary in each trial. Hence this type of error has an effect on the precision of data. Precision is how close together a set of measurements are regardless of how far away they are from the true value.…