Many people in this world really underestimate how physics contributes to our daily lives whether be walking, talking, or any other action. Many equations, graphs, and a little bit of math help us understand what goes on behind the curtain. Physics also have shared relations with science and combining those physics to other types of studies. To understand physics, we need to discuss the laws of motion which are called the Newton’s Laws of Motion, there are only three. According...
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1 Introduction I have always been interested in the physics and math behind rocketry and aviation. Aeronautical engineering is my dream job, making it an obvious idea to do some topic related to the same. Recently, I visited the Kennedy Space Centre where I saw the Saturn V rocket, the rocket that was used for all the Apollo missions. While I was bewildered by its very size and scale, what intrigued me the most was haw much of the mass/...
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In 1687 Isaac Newton presented the three laws of motion. These laws created a massive advancement into the Age of Enlightenment and the Industrial Revolution. The laws were taken very seriously and not many questioned them, since it was science. Fast forward to the modern day, behavioural laws have been introduced and people question and go up against every aspect of it. Like Isaac Newton’s laws, there are also three laws of human behaviour. These laws, although quite similar, have...
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Before they know it, their life could be flashing before their own eyes. Speeding isn’t the way to go. There are multiple crashes a year involving teens, some can be fatal. 32/100 of fatal crashes involve teen drivers. Speeding for teenagers is bad, it not only puts you in danger but also others. Around the world, teens are dying from speeding and crashing into objects such as cars, trees, and other things. Kids sometimes do it to look cool in...
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Nowadays, traffic accidents are increasing every year, as a result of which many people are injured, even dead by the accidents. There are many types of traffic accidents that cause many people to die. One of the most issues that happen every day is speeding. In this essay, I want to prove that speeding can kill many people and affect the environment. Firstly, speeding could either kill or injure people around you and even yourself on the road. The cause...
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The study aims at discussing the physics behind design and action of roller coasters by first stating the definition of a roller coaster. A roller coaster is a type of amusement ride that employs a form of elevated railroad track design with tight turns, steep slopes and sometimes inversions (Wikipedia). The roller coaster applies a wide knowledge of physics concepts of work and energy mainly potential energy and kinetic energy, gravity and some uniform circular motion too in cases where...
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The roller coaster has its beginning in Russia, where people applied in different ways during the 1600’s. People crafted slides made out of wood and went to the hills with sand where it could help them slowdown when they reach the downhill. This topic discussed in the essay is all about how these laws of physics apply to its design and the action of the roller coaster. Nowadays people in developed countries develop a mentality that if an entertainment park...
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Research Question How different types of pressure can affect peer risk-taking on a fictional young male driver’s estimated speeding behavior and estimated intention to speed? Hypotheses Passive peer pressure would lead to a greater estimated speeding behavior of the scenario driver (ESBSD) and estimated intention to speed of the scenario driver (ESISD) than active pressure. High-risk-taking peers would have a higher estimated ESBSD and ESISD. Passive peer pressure with high risk-taking peers would have the highest ESBSD and ESISD than...
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The topic of kinematics in general, is an interesting topic for learning about and understanding since it includes a variety of subtopics that can be integrated through physics. This research topic can help people predict the motion of an object depending on the surface it rolls on, its density, its shape, its mass, and its volume. It interested me to find out/explore the wide perspective in predictions that come up when researching about kinematics of any rolling object, and how...
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Air we breathe in consists of molecules. Even the tiniest of regions of air will contain millions and millions of molecules. These molecules are in constant motion, traveling randomly and at great speed. There is a constant bombardment with each other and every other object that is in contact with the air. One interesting thing about air is that it is a medium through which heat or sound travels. But our current main attention will be on sound. Sound is...
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If someone would have told us, more than 70 years ago, that could travel faster than the speed of sound, we’d nod our heads in disbelief and laugh. I mean, think about it. – Breaking the sound barrier is as mind-boggling as superman’s ability to defy gravity. But what if I told you, that a man achieved the impossible right before the 1950s? So, who is this guy? How did he manage to travel faster than the speed of sound?...
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Abstract Many people are getting killed in road accidents daily and it has become one of the major concerns for the whole world. According to WHO about 1.25 million people die in road crashes each year, on average 3,287 deaths a day and an additional 20-50 million are injured or disabled. The motivation behind this work is an attempt to make an Arduino based IOT system for real-time monitoring of speed and which aware people about the speed of the...
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Albert Einstein was born March 14, 1879, in Germany and was a physicist who developed the special and general theories of relativity, considered to be his most famous piece of work. His research spanned from quantum mechanics to theories about gravity and motion. After publishing some papers that changed how the world knew space, time and gravity, he toured the world giving speeches about his discoveries. Since a very young age, Einstein was extremely interested in science and was influenced...
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Introduction: This report investigates the effect of wheels on the speed of a solar car. This is achieved by considering the effects of force and energy transformation and what happens if extra wheels are added. Force is the act of pushing or pulling on an object with mass that causes it to change velocity (e.g.: accelerating a car). Force is also a vector which means it has both magnitude and direction. Energy transformation aka energy conversion is the act of...
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Introduction Newton’s three laws of motion for several decades remained a matter of course. Until 1905, the physicist Einstein published a paper questioning the accuracy of these laws, which are now known as the Special Theory of Relativity, followed by the General Theory of Relativity, Its lack of understanding, where this understanding was based primarily on Newton’s law of gravity. The theory of relativity states that the laws of physics do not change and are the same everywhere. The theory...
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1. Introduction As a fundamental constant, the exact value of the speed of light has been disputed for centuries. The measurement of the speed of light brought arise to new areas of Physics such as Einstein’s Theory of Relativity. This Theory of Relativity was based entirely on the relativistic effects caused by objects moving near the speed of light. This brought arise to an exclusively new area of Physics, furthermore it is no wonder why the velocity of light in...
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Rational The claim, ‘Every K over is a killer has several aspects that could be investigated. The claim implies that driving an excessive amount over the regulated speed limit is dangerous and could cause possible death. The first aspect that can be investigated is what speed limits are and how speed limits are appropriately chosen for different areas and driving conditions. The research found that speed limits are set to improve safety by reducing the probability and severity of a...
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History of atom Our journey with the atom model dates back to 442 BC when Greek Philosopher Democritus proposed his theory of matter. While his theory was obviously not based on any observable science, it was entirely dependent on rationalism and was largely inspired by Greek philosophers, Leucippus and Anaxagoras. Democritus enters this discussion facing phenomenal resistance. His proposition so the atom disputed the prior explanation Empedocles, who describes the world and its contents as being made of a combination...
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Safe Sound Level Practical Sound are waves produced by vibrations (OpenLearn, 2017). They can travel through solids, liquids and gases. However, the particles move differently in each of these forms. Sound waves travel fastest in solids, followed by liquids, then lastly gases (Oceanservice n.d). The molecules in solids are the most compacted, enabling sound to travel much faster in solids than in liquids or gases (NDT Resource Centre n.d). Sound waves moving through the air are longitudinal waves as they...
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In antiquity, philosophers posited a variety of ways in which the physical world is constructed. One such philosophy is that of Atomism, which proposed that the universe was made of indivisible, granular elements: atoms. An early example of a philosopher proposing atomism is Aruni, a Vedic scholar from 8th century BCE India, who theorized that particles too small to be seen mass together into the substances and objects of experience; Aruni suggested that these particles be referred to as kana...
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Niels Bohr, who was interested in explaining the spectrum of discrete lines that is observed when light is emitted by different elements. Many models of the atom have been proposed based on experimental data, including J.J. Thomson’s discovery of the electron and Ernest Rutherford’s discovery of the nucleus. Rutherford explained that in an atom, the nucleus is positively charged and surrounded by electrons in his Rutherford Model (negatively charged particles). The electrons follow a predetermined course known as orbits. Rutherford’s...
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Abstract Have you ever wonder why ice cubes floats when mixed with water? or when oil stays at the top of the water instead of mixing together? This goes back to 250 B.C when a Greek mathematician named Archimedes discovered density. Density explains the correlation of mass and volume and also when the object is supposed to rise, sink, or suspend an example is when oil stays at the top of the water that is because the oil is less...
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1.0 Introduction Western hemlock is the single most plentiful tree species on the coast of British Columbia and makes up 18% of the volume of BC’s total growing stock. It grows along both the east and west sides of the coast range, from sea level to mid-elevations, as well as in the Interior wet belt west of the Rocky Mountains. It seldom grows in pure stands, and is usually mixed with Douglas-fir, amablis fir, sitka spruce, and western red cedar...
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Abstract: Advance illumination instruments have changed the scenario in distribution and intensity of lighting systems in this world. Development from fluorescent to white LED (light emitting diode) opens the door of illumination, pest control application and eco-friendly lighting. Color sensitivity in UV spectrum plays crucial role in navigation; meet selection, excitation in terrestrial invertebrate animals. This review shows the importance of each wavelength while selecting any lighting system for environmental applications. All major scientific studies are scanned as per the...
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Introduction Since its first opening in Paris on July 8, 1817, the rollercoaster remains to be the prime attraction of every modern theme park. The rollercoaster ride focuses on exposing the riders to a variety of magnitudes of forces, at different times, without compromising on the health and safety of the riders. To give maximum enjoyment whilst ensuring safety, manufacturers have to study and understand the different forces and conditions riders are exposed to while in the ride. This paper...
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Abstract: Heat sink are a kind of heat exchanger used as a cooling system for electronic devices due to simplicity, low cost and reliable manufacturing process. The heat sink can be divided into plate fin, pin fin, cross fin, a combination of plate fin and pin fin, perforated plate fin and pin fin and radial heat sink. In the past decades, several published articles have focused on the thermal performance with forced convection. However, only a few publications have focussed...
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Sound: A Basic Introduction What is Sound? Sound can be described as variations in density and pressure that expand in an elastic medium which could be a gas, liquid or solid body. The precondition for variations in pressure to be defined as sound is furthermore that in addition to the source of the sound and the transmitting medium, there should also be a receiver of the sound. What we humans experience as sound are variations of pressure in the air...
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Introduction: The basic idea of the density functional theory started in the nineteen-twenties with the work on the uniform electron gas of Thomas and Fermi [1, 2], who came up with the idea that the energy of a system is given completely in terms of its electron density. However, only in 1964, with the publication of the Hohenberg and Kohn (H-K) theorems [3], and in 1965, with the derivation of the set of mono electronic equations with which one can...
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Abstract – Active street lighting has emerged as an essential factor in strategies for a resource-efficient economy and realization of sustainable growth. In the outdoor area, lights represent approximately 40 % of the total energy consumption at night and have much energy saving potential. If passers-by or vehicles, summarized as traffic elements, are not located near street lamps, it is not energy-efficient to turn them on. The idea is to activate street lights only when they will be used to...
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Abstract Our theoretical interpretation shows that the electron density is condensed at 150°orientation and perhaps the reason for the high mobility of electron in graphene. To determine the above result, the constructed monolayer of graphene contains 40 carbon atoms with 48 bonds in between them and 16 hexagonal polyhedra and the bilayer of graphene has 80 atoms with 96 bonds with 32 polyhedra. The hexagon of carbon lattice has an area of 5.24 Å2. One unit-cell has the volume of...
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