This paper hypothesizes a connection between gravity and entropy. Gravity, which has not been successfully unified with other fundamental forces yet, is now alternatively explained as an entropic force that is caused by change in information associated with the positions of material bodies. We consider the statistical definition of entropy and ultimately conclude that gravity and entropy are two sides of the same coin and their inter-conversion is what we call ‘time’.
Working with Police Scotland, Physics students from Lockerbie Academy took part in a simulated crash investigation, based on a real crash that occurred in the local area. We used our knowledge of kinematics and problem solving skills to determine the cause of the collision. To do this we took measurements of displacement and deceleration and calculated the initial velocity of the car. The investigation found that the driver was at least partly to blame for driving too fast, therefore emphasising the importance of staying within the speed limit.
This paper describes a low temperature plasma physics and visible spectroscopy experiment set-up and run by A level physics students. Results are presented from the measurement of the breakdown voltage for an argon plasma, successfully measured for a wide range of pressures. The minimum breakdown voltage from these results has been used to find an experimental value of ionisation energy for argon. In addition, the results from a visible spectroscopy system are also presented, using a fibre optic array coupled to a monochromator and microchannel. The first set of results from this study is shown as a plot of relative intensity as a function of wavelength.
Sir Isaac Newton and his colleagues enjoyed studying and expanding the supposedly unequivocal laws of physics, such as Newton’s three laws of motion. During the twentieth century, theories such as Einstein’s relativity and those in quantum mechanics turned Newton’s world upside down. Today, a lot more is known about quantum mechanics. However, there is a still an unknown world between Newton’s and Feynman’s. One example of this gap is Schrodinger’s infamous cat.
The purpose of this project is to find out more about how cosmic rays are affected by the Earth’s atmosphere, if cosmic rays are related to lightning strikes and where they originate from. To test our hypotheses on the behaviour of cosmic rays, we constructed and tested a detector at our school, to be used for collecting data on cosmic rays. This information will be analysed and used by scientists all over the world to aid their research. In years to come, future students will be able to use the scintillator to test other hypotheses and contribute to the scientific community. This article will describe our current progress on constructing the detector.
In this article, I have discussed the merits and the problems of nuclear fusion. I have tried to answer my question of viability by discussing whether or not fusion is possible, and if it will ever be economically viable to do so. To do this, I have explored the current level of the science behind fusion, and where it could be progressing over the next fifty years or so. I also compared fusion to other sources of fuel, to see if it was the best option and so go into depth about the pros and cons of the different fuel sources. I concluded that fusion was needed as a replacement for fossil fuels, and that it would be the preferred method due to its safety, minimal damage to the environment, its longevity of resources, and its ability to create copious amounts of energy. I decided that fusion, whilst not at the moment, would become economically viable within the next forty to fifty years, and so answered my question, as I concluded that fusion is a viable source of energy for the future.