PHYSICS D E I F I L P M I S TEXTBOOK By Sparsh Singh CONTENTS Dynamics Energy and Momentum Gravitational, Electric and Magnetic Field Wave Nature of the Light Revolution of Modern Physics CARS Chapter 1: Dynamics. INTRODUCTION Vehicle Dynamics is the study of classical mechanics that predict and control movement. SCIENCE What is the science behind it? The little tires that are responsible that cause the car to go move forward and down. The controls inside of the car allow the tire to move clockwise and anti-clock wise. The arrows here are simply responsible for the motions that are acting on the car itself. F(yf) F(xf) F(gf) F(fr) SCIENCE How do these forces work? F(yf) F(xf) F(fr) F(gf) F(xf) - represents the force that is produced by the car at it’s maximum speed on the x scale. (Backward and Forwards). F(yf) - represents the the force that is achieved by the car at it’s maximum speed when the car gets bumps or holes on the road. F(fr) - The “fr” stands for friction that the tire might face when it’s driven. F(gf) - It’s the gravity the effects the tires of the cars. REAL LIFE How is it used in real life? Vehicle Dynamics plays a huge role all around the world. There is always been a drive for achieving faster means of speed of transportation, while also being safe. That’s the core mechanic of vehicle dynamics. EXAMPLES What else is Vehicle Dynamics is about? Moreover, Vehicle Dynamics is not only a study of the mechanics of vehicles but also scenarios such as wheel motion, forward and backward acceleration. The minus represents deacceleration and a left turn Longitudinal The plus signs represent the increase in acceleration. Lateral IMPORTANCE Why is Vehicle Dynamics so important? Well, in simple words it’s allows for larger distances to be covered in a safer manner. Hence, why it’s important for there to be more progress in the Vehicle Dynamics. As it allows for more progress in safer and faster transportation. SOLAR PANELS Chapter 2: Energy and Momentum INTRODUCTION What is Solar Panel? Solar Panels are panels that absorb energy from the sun which it uses to convert it into electricity that powers up homes. They all follow the rules of law of conservation momentum of Newton’s Third Law of Motion SCALE How do they truly work in real life? Solar panels are an epitome of that are semiconductors that use the photovoltaic cells that contain electrons which is directly starting a flow of electrons. Allowing for that energy going through an inverter that allows for the spread of electrons. Direct Current Alternate Current KNOWLEDGE What is the law of conservation of momentum? Reaction Action Newton’s law states that for every reaction there is an equal and opposite reaction. REAL LIFE How does Solar Panels affect real life? Solar Panels are extremely sustainable and efficient. The power conversion from electricity is extremely fast and allows for people to not harm the environment and use sustainable electricity, and further improves the technology regarding sustainable energy. IMPORTANCE Why should you care about solar panels? Solar power will become inexpensive and will last longer in the near future Low maintenance is needed for solar panels meaning less money wasted by solar companies Huge electricity bill reduction and might be cheaper than non-renewable electricity. NEGATIVES Negatives of Solar Panels Highly weather dependent, with clouds, rains, and storms it will be harder for solar panels to collect energy Solar Energy storage is expensive as it’s a own power source Need to clear land, hence negatively affects the forests. Transportation and installation of solar panels causes pollution. MAGLEV TRAINS Chapter 3: Gravitational, Electric, and Magnetic Fields. INTRODUCTION What is a Maglev Train? Well Maglev Trains are means of transportation that uses a property called “electromagnetism” to move. This main property is why it’s so popular around the physics community and is been using worldwide. HOW? How does a Maglev Train work? Maglev Trains use the property of magnets that are attached at the bottom of the train and on the tracks. Creating a loop that pulls the train from the front and pushes it from the back. MAGNETS Science behind it? To go more in depth, underneath the trains consist magnets that are spread apart. S N S N S S N N S N S The arrows represent repulsion and attraction. N However, the tracks consist of double the amount of magnets than the train! Because of this, the train is always in a constant state of attraction and repulsion. Causing the train to keep floating! Now just add a bit of electricity and a timer, that sets of the magneti REAL LIFE How does it benefit society? Maglev Trains are cheap, and has a good cost-benefit ratio. It’s environmentally friendly and allows the creation of jobs, and it’s significantly faster than normal trains! MAGNETIC FIELD What is a magnetic field? Magnetic field is basically a invisible magnetic field around a magnet. It affects these particles called electron and protons. The poles are called North (N) and South (S), are what attract and repulse particles. NEGATIVES Negatives of Maglev Trains? Maglev Trains are very expensive at the current time They use a lot of energy and isn’t very cost effective There is no template for Maglev Trains, hence it takes more time and money to build in a country NIGHT VISION Chapter 4: Wave Nature of Light INTRODUCTION What are Night Vision Goggles? Night vision goggles are wearable electronic devices that help you see more in low light. They cover both eyes and allow people to identify objects in the dark. SCIENCE? What is the science behind the goggles? Photon which are tiny light particles enter into the goggles that contains this intensifier that converts the photons into electrons, and all of this is from the photocathode inside the intensifier. Later, the phosphor screen turns the electrons into photons, hence why all goggles have a green-tinted vision. Photocathode Image Phosphor Screen Lens s ton Pho Image Intensifier REAL LIFE How does Night Vision Goggles affect society? Night vision goggles are used and have benefited the military, wild life observation, recreational activities, and allows night hiking. Military uses night vision goggles and have created a safer environment and allowed a rapid more scientific and militaristic value to the world. NEGATIVES They can strain your eyes causing problems Limited Battery Life They are very expensive Fast-moving objects can cause lag in the night goggles. QUANTUM COMPUTING Chapter 5: Revolution in Modern Physics INTRODUCTION What is Quantum Computing? Quantum Computing in layman terms means a computer that can do hard calculations at an extremely fast time, that beat most classical computers at this day and age. SCIENCE? Quantum computers are very different from classical computers. Normal computers the ones you see in an electric store tend to use zeros and ones which are called binary. Most classical computers use binary to function. However, Quantum computers use qubits. Essentially they are a combination of both zeroes and ones and are exponentially faster than normal computers 1 0 1 0 1 0 1 0 1 0 1 1 1 0 0 0 1 1 0 0 1 0 10 times faster! IMPORTANCE Can possibly cure disease with no cures, because of the research data and simulations that the computing gives Airline systems will become more efficient, (no waiting during airplane calls) And more technology that furthers development in ease of life (traffic signal) REAL LIFE Quantum computing is essentially the new invention that is going to make new medicine, allow for Artificial Intelligence to flourish, while also giving solutions and steps to combat climate change. Quantum computing might revolutionize the world!
