In my physics lab, I perform many experiments intended to compliment the lecture material. Doing these experiments not only improves my general understanding of the lab material and how physics equations apply to the real world, but also teaches me many things about experimental procedure and data collection. Overall, it is a very enriching experience.
The labs are performed in groups, usually of three to four people each. Four TAs are present during labs, to assist students in completing the lab procedures correctly. At the beginning of each lab, a TA explains the lab procedure and the equations necessary to do the lab.
In the lab, several rules are in place to ensure a safe and productive experience for those who are working. For example, open-toed shoes, dangling jewelry, food and drinks are prohibited in the lab to prevent both accidental injury of the students as well as potential damage to the lab equipment.
In addition to safety rules, many requirements exist to ensure that students do sufficient work to pass the lab component of the course. Lab attendance is mandatory for the course, and missing more than two labs, excused or not, results in failure of the course. Being at the lab on time is extremely important as well, and being more than 10 minutes late for a lab may be considered the same a missing the lab.
Beyond arriving at the lab on time, successful completion of a lab requires that all students submit a pre-lab before the lab begins. The pre-lab usually consists of a brief outline of the lab, including lab objectives, procedure, and relevant equations. After following the lab procedure and recording data, it is also necessary to write a lab report to summarize the results of the lab. The lab report contains the...
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... the acceleration of the mass and the inertia of the weights, it was possible to determine the moment of inertia of the rotor itself.
The last experiment performed (as of this writing) was Experiment 10, which explored simple harmonic motion. This experiment was actually two experiments, one examining harmonic motion using a spring (call this Experiment 10A) and the other using a simple pendulum (Experiment 10B). For part A, a mass was attached to a spring hung vertically, causing the spring to elongate. By measuring the difference between the spring's rest length and its length with the mass attached, it was possible to find the spring constant. The procedure was repeated several times with different masses, to obtain a more accurate value for the spring constant. Next, various masses were attached to the spring, pulled down, then released and allowed to oscillate.
The goal of this experiment is to develop a theory, which allows us to understand the motion of a marble.
The laboratory experiment gives the experimenter a greater chance to control the conditions and enables you to measure behaviour with greater precision. This method also allows for quantative research and also enables greater control of variables. Although it gives the experimenter greater control, this can also seem daunting to the subject who may feel more uncomfortable and is less likely to ...
The “Doing Nothing” experiment exposed me to a new way of seeing things and also a new level of awkwardness. Standing still in a public place for ten minutes, with people walking past you and starring you down like you are some crazy person is quite the experience. You begin to understand that people take great notice of anything that seems out of the ordinary to them. This is because our society has developed and enacted so many societal norms in today’s day and age.
Lab reports are the biggest part of our writing component in Chemistry and Physics. These are complete for each lab and activity.
The purpose of Scientific Method Lab is to determine which variable mass or height will have the greatest impact on the speed of a sphere. The generalized purpose of this lab is to practice scientific method and to learn how to write lab procedures.
[ 8.1 ] Will the allele frequencies in the pens tend to move toward the frequency in the larger field population?
...the undergrads to read a methodology section from the previously mentioned study several days earlier before initiating the baseline data collections. Additionally, written descriptions and outlines of the assessment were read. The participants then collected the baseline data. Afterword, a quiz and feedback were given and a second baseline was conducted.
It is important to have lab safety when you are working without anyone else's input, or in a group, and around other individuals. Wearing protection gear is important when vital. At the point when managing something hot dependably make certain to wear gloves and when utilizing a chemical that can hurt your eyes, goggles ought to be worn at unequaled when you are in the lab. Likewise when utilizing a chemical or anything that can leave stains make certain to wear an apron or something that secures your garments. A few chemicals are exceptionally dangerous to the body, therefore when utilizing them generally make the best choice and never taste, touch, or smell the chemical unless the teacher educates you to. Continuously make certain you recognize
The historical results of this experiment by determination of the charge to mass ratio of an electron allowed physicist to work out the miniscule mass of an electron through the use of an external magnetic field. Magnetic fields apply a magnetic force on charged particles perpendicular to their direction of motion and to the magnetic field itself. This allows for the magnetic force to act as a centripetal force which then, through analysis, allows for the determination of certain charged particles through the analysis of their curve radius. In lab 15, Measurement of Charge to Mass Ratio for Electrons, the objective was to measure the charge to mass ratio (e/m) of an electron through the use of a mercury vapor chamber. This was done through the graphical analysis by the linearized equation (4). The goal was to construct a linear graph in which the slope and slope error was calculated using the Linest function, the slope than allows for the derivation of the charge to mass ratio of an electron. Error propagation (error formulas) was also used in this experiment to account for sources of error that could have occurred.
We separated into groups of two each, making sure that we had the following materials for the lab: graduated cylinder, plastic sandwich bag, starch solution, twist tie, 500-mL beaker, iodine solution, and a pair of goggles and an apron (for the person handling the iodine solution).
Overall, I enjoyed this lab even though there was a lot of down time and I look forward to the rest of the semester, but I wish people would be wary of contamination and the importance of washing and drying glassware before using it and after using it.
Born in 1564 - 1642, this scientist came up with a theory that led him to crate the law of inertia, this law contradicted Aristotle 's ideas of motion. He concluded that an object in the state of motion possesses inertia. Basically what he meant was that, "what is in motion stays in motion unless an object of equal or greater force acts upon it." Due to his vast studies of space, planets, stars and moons he had developed many theories, all by just simply using a telescope. One of his theories was that if he dropped two objects of the different mass, they would still fall at the same time. He later identified this as the "Law of Fall". By introducing the law of inertia, he gave Newton a start in the concept of force and
Stepping foot into the lab meant one thing for sure: conducting a new experiment. One time, the instructor distributed petri dishes and gave us instructions to gather specimens of bacteria. I ran excitedly out of the lab and then sat in a corner to gather my sample. The next day we used compound microscopes to examine our samples. Other times, I’d dissect and identify myriad parts of animals like hearts and brains. Cutting through the layers of the cerebrum while smelling the suffocating
When one allows some form of behavior to thrive in the classroom without proper guidance, it quickly develops into unacceptable behavior. It is better to prevent classroom incivility than to deal with the consequences later on. The instructors can incorporate their expectations of behavior in the class syllabus and revisit them from time to time. These may include class attendance, lateness, and use of laptops during class, and side talking. Clear policies should be set regarding the punishments for breaking any of the set rules. The institution’s code of conduct and the penalties for grave breaches should also be included so that students are aware of the policies and the expectations of the institution (Miller et al.
Safety in school labs Safety remains one of the key elements in modern school labs; it is necessary for the staff to ensure the safety of all the lab users. All chemicals and equipment in the laboratory have the potential to harm if adequate safety measures are not taken into account. For lab use, you have to ensure that you follow the basic safety guidelines for the lab sessions. Always be aware of all the general safety precautions and familiarize yourself with the appropriate protective measures that can keep you safe (NIOSH, 2006). It is important to consider that serious damage could occur if the basic safety rules and regulations for lab practice are not followed.