Observations and Measurements

11a, lab 1: Motion, Measurement and Statistics In the first lab we will investigate the motion of a ball rolling down an inclined plane. We will use this simple system to investigate the concept of systematic and random measurement uncertainties to understand how much we can trust a measurement. We will then compare the experimental outcome with theory. I. Ball on an inclined plane: Measuring motion We want to measure the motion of a ball that rolls down on an inclined plane…

missing person. The pelvic bone was analyzed first. The first measurement made was for the degree of the Sub-Pubic angle and gave forth the measurement of 84 degrees. This test, however, was redone and the final determination of the angle is found to be 92 degrees. This piece of information helps to conclude that the body found is of the male gender. The next measurement taken was the Pubis Body width. The first test conducted on this measurement concluded with the width being 28 millimeters.…

Boots, he writes about the use of hand and laser measurement devices used at crime scenes. One hand held measurement method that Books writes about is a rolling measurement device. This type of device should be checked against a steel tape measure to compare over various distances. Boots states, "Probably one of the most commonly used devices is a good old-fashioned…

single source which is the robots estimated location. From this it is observed that the relative locations between two landmarks that may actually be accurately known (mi-mj). Furthermore, this correlation increases monotonically as more and more observations are made (for the linear Gaussian case). This is an important insight to SLAM as this implies that the relative location of landmarks never diverges but rather improves. This can be conceptually seen by observing a point in Figure 10 where…

made at the end. In the first half of the experiment, the density of copper is calculated using two different methods of measurement. The objective of the experiment was to compare the two techniques and decide which one was more accurate. The density of copper is 8.96 g/mL (Copper 1). The average density calculated…

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…

Psychologists prefer to use direct observation of behavior instead of psychological tests. Advantages: Observation can help round out research by offering a real-world aspect to a hypothesis. It offers a better description of behavior and is less hypothetical than other methods. Observation allows you to see how participants act together and separately. Do actions or decisions change in a group setting? Do people act differently when by themselves? Observation allows you to create and observe…

Title: Which Kind of Ball will Bounce the Highest Aim - what are you going to investigate? To investigate which of the four balls; golf ball, ping-pong ball, tennis ball and rubber ball will bounce the highest after being dropped from either a 100 cm or 50 cm height. Hypothesis - what do you think will happen? A generalisation that links the independent and dependent variables (you may use and IF THEN statement. Compared to 50 cm, when any of the balls is dropped from 100 cm it…

A ruler has a finite precision that limits its ability to account for small, measurement differences. Due to this, there is a degree of unreliability in the measurements made of the height of the oxygen bubbles. Furthermore, the height of the bubbles was measured from the bottom of the tube, where there was a groove in which the tube was resting in. This may have affected…

Then, observations were made of the mCherry fluorescence under a fluorescent microscope with a “Flur 20X” objective and FIT-C Filter Set, which produced green light and made the specimen’s basal body formation glow red (shown in Fig. 6). Each strain of fixed cells was prepared on a separate wet mount slide, and the observations made were focused mainly of the shape and intensity of fluorescence coming from the oral groove location on the Tetrahymena. Any significant observation made was…