...Newton’s 1st Law – Why do we click it? According to Newton's first law, an object in motion continues in motion with the same speed and in the same direction unless acted upon by an unbalanced force. It is the natural tendency of objects to keep on doing what they're doing. All objects resist changes in their state of motion. In the absence of an unbalanced force, an object in motion will maintain its state of motion. This is often called the law of inertia. The law of inertia is most commonly experienced when riding in cars and trucks. In fact, the tendency of moving objects to continue in motion is a common cause of a variety of transportation injuries - of both small and large magnitudes. Consider for instance the unfortunate collision of a car with a wall. Upon contact with the wall, an unbalanced force acts upon the car to abruptly decelerate it to rest. Any passengers in the car will also be decelerated to rest if they are strapped to the car by seat belts. Being strapped tightly to the car, the passengers share the same state of motion as the car. As the car accelerates, the passengers accelerate with it; as the car decelerates, the passengers decelerate with it; and as the car maintains a constant speed, the passengers maintain a constant speed as well. But what would happen if the passengers were not wearing the seat belt? What motion would the passengers undergo if they failed to use their seat belts and the car were brought to a sudden and abrupt halt by a collision...
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...“Different causes of car accident in community” the sleepy community it was in the past, and the density of the population has led to many serious traffic problems throughout the city. The numbers of auto accidents continue to rise, and these accidents involve a range of negligent driving behaviours. • People who are sleepy while driving is one of example og car accident there are road conditions that are dangerous even in the dry months, often leading to serious or deadly accidents. In car accident there are 3 main accident reasons behind these auto crashes: speed, impaired driving and distractions. •in weather condition while driving too fast is dangerous. Although heavy rains make it unsafe to travel at normal speeds, some drivers just won’t slow down. •Using cell phone while driving is well known to be dangerous, and texting while driving puts the driver, the passengers and all travellers on the road at great risk of harm. The driver’s eyes are not on the road ahead; instead he or she is mentally focused on reading an incoming text or email, or in composing the text or email. While the attention of the driver is shifted off the road and onto the digital device, the vehicle travels a great distance, and the potential for hitting a car ahead, swerving out of lanes and into oncoming traffic and other dangers is very real. Other driver distractions include daydreaming, talking on the phone. •when they get behind the wheel. A normally friendly individual can have a complete...
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... NEWTON’S FIRST LAW OF MOTION TITLE : NEWTON’S FIRST LAW OF MOTION (LAW OF INERTIA) THEME : DYNAMICS SUBJECT : PHYSICS 1 SUBJECT CODE : FPH 1114 GROUP MEMBERS : 1. REETNAM KAUR 2. AIDA AFIQAH BINTI MOHD RIDZUWAN 3. NUR HANIS BINTI ISKANDAR 4. AMIR SYAHIR BIN MURAD 5. JEYAPRAVIN GANESAN Abstract Sir Isaac Newton first presented his three laws of motion in the "Principia Mathematica Philosophiae Naturalis" in 1686. His first law states that every object will remain at rest or in uniform motion in a straight line unless compelled to change its state by the action of an external force. This is normally taken as the definition of inertia. The key point here is that if there is no net force resulting from unbalanced forces acting on an object (if all the external forces cancel each other out), then the object will maintain a constant velocity. If that velocity is zero, then the object remains at rest. And if an additional external force is applied, the velocity will change because of the force. The amount of the change in velocity is determined by Newton's second law of motion. In this experiment, the simple egg drop trick is used to demonstrate the application of Newton’s First Law of Motion, namely inertia. The large drinking glass is filled about three-quarters with water. A pie pan is placed on top of the glass. The cardboard tube is placed on...
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...CONTENTS |Topic |Page | |Newton's 1st Law: the Law of Inertia |2 | |Newton's 2nd Law: the Law of Proportionality |3 | |Newton's 3rd Law: the Law of Interaction |4-5 | |STUDENT WORKSHEET: Conversion…Force |6 | |STUDENT WORKSHEET: Conversion…Weight |7 | |STUDENT WORKSHEET: Conversion…Length |8 | |STUDENT WORKSHEET: Acceleration |9 | |STUDENT WORKSHEET: Force and Acceleration |10 | |STUDENT WORKSHEET: Force and Acceleration Exercises |11 | |STUDENT WORKSHEET: Fighting Gravity! |12 | National Science Standards: Science as Inquiry Physical Science Position...
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...noise, instability and will consequently lead to system break down which is a disastrous effect. This project studies a model vibration of a four-cylinder engine which is mounted on a cantilever. This system can be modeled as a mass spring system so that the vibration of the system can be studied. These vibrations are mainly due to the unbalance of primary or secondary forces and couples. 1. Background The model engine consists of four cylinders mounted of a crank shaft with different crank phase angles. A DC motor with a variable speed control drives the shaft and makes the four-cylinder to rotate. The shaft is rotating at a constant angular speed, however, producing an acceleration on the pistons. Hence there are some inertia forces acting on the crank shaft due to these accelerations. The relative crank phase angles of the four cylinders can be adjusted by loosen three Allan screws to each point of the adjustment. Each crank shaft is to be dynamically balanced with the usual conventional allowance for the effect of its connecting rod. This helps the assembled crank shaft to remains substantially balanced for rotating effects. The mass center G of the assembly is on the cantilever. There are two units of Linear Variable Displacement Transducer which are equipped...
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...when suspended and using clothes during cold seasons are some of the examples of areas where physics is used in everyday activities. Skating Skating is one of my daily activities where physics is applied. Skating is a type of movement that is made possible through the laws of motion found in physics. Skating can help explain the term movement, what makes skaters move and what keeps skaters moving while in motion. Also, it helps explain what it takes to stop moving or turn the process of moving in another direction. Skating can also reveal the concept of acceleration and deceleration, as well as the concept of speed. While putting a skate, nothing will happen to such a person unless an external force acts on him or her. The concept of inertia states that a body in motion will always tend to move while a body at rest will always tend to rest unless an external force acts on it (Laws, Sugano, and Swope, 2002). This is the first thing that happens before a person starts skating. The skater will always remain at rest until he applies some force to start moving. While on motion, the skater will tend to move unless he applies a force to stop. This is also an explanation of Newton’s first law of motion which states that every object or body in a state of uniform movement will tend to remain in...
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...Galileo was born in Pisa (then part of the Duchy of Florence), Italy in 1564, the first of six children of Vincenzo Galilei, a famous lutenist, composer, and music theorist; and Giulia Ammannati. Galileo was named after an ancestor, Galileo Bonaiuti, a physician, university teacher and politician who lived in Florence from 1370 to 1450. Galileo Galilei was an Italian physicist, mathematician, astronomer, and philosopher who played a major role in the scientific revolution. Galileo has been called the "father of modern physics Galileo's theoretical and experimental work on the motions of bodies, along with the largely independent work of Kepler and René Descartes, was a precursor of the classical mechanics developed by Sir Isaac Newton. Galileo conducted several experiments with pendulums. It is popularly believed that these began by watching the swings of the bronze chandelier in the cathedral of Pisa, using his pulse as a timer. Later experiments are described in his Two New Sciences. Galileo claimed that a simple pendulum is isochronous, i.e. that its swings always take the same amount of time, independently of the amplitude. In fact, this is only approximately true. Galileo also found that the square of the period varies directly with the length of the pendulum. It is said that at the age of 19, in the cathedral of Pisa, he timed the oscillations of a swinging lamp by means of his pulse beats and found the time for each swing to be the same, no matter what the amplitude...
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...Sandra T. Belen III – Thompson Biography of Isaac Newton Newton, Sir Isaac (1642-1727), English natural philosopher, generally regarded as the most original and influential theorist in the history of science. In addition to his invention of the infinitesimal calculus and a new theory of light and color, Newton transformed the structure of physical science with his three laws of motion and the law of universal gravitation. As the keystone of the scientific revolution of the 17th century, Newton's work combined the contributions of Copernicus, Kepler, Galileo, Descartes, and others into a new and powerful synthesis. Three centuries later the resulting structure - classical mechanics - continues to be a useful but no less elegant monument to his genius. Life & Character - Isaac Newton was born prematurely on Christmas day 1642 (4 January 1643, New Style) in Woolsthorpe, a hamlet near Grantham in Lincolnshire. The posthumous son of an illiterate yeoman (also named Isaac), the fatherless infant was small enough at birth to fit 'into a quartpot.' When he was barely three years old Newton's mother, Hanna (Ayscough), placed her first born with his grandmother in order to remarry and raise a second family with Barnabas Smith, a wealthy rector from nearby North Witham. Much has been made of Newton's posthumous birth, his prolonged separation from his mother, and his unrivaled hatred of his stepfather. Until Hanna returned to Woolsthorpe in 1653 after the death of her second husband...
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...When we hear the world collision the first thing we think is crash. In scientific words collision occurs when more than two objects collide against each other as a result, the born of many physics forces like momentum, impulse, inertia and friction. But what is the relationship between collision and a car crash? What we may not notice is that physics is all around us in our life and every life event involves its. The path we take every morning in our way to school, the traveling of the car is a very good example. Studies prove and affirm that the survivors of severe car crashes, survive thanks to the way of protection they used and how is the car designed with specific and special safety precautions. That was our main point we wanted to achieve while making our car for the project. Our design was basically a truck like a jeep. It was all made up of carboard, wood and other small details that beenfit the truck to make it heavier, more rough and hard. It was also covered with newspaper, as a result, giving the car a very hard texture. The passengers seat, was made up all of soft materials like cotton, pads and sponges. The egg was attached with two rubber strings, simulating a safety seat bealt and helping as a support for the egg. All this details and spefcific design had a main goal and something specific to achieve: preventing the egg from breaking and keep it secure in its seat. The demostration of collision and all its forces acting against in this experiment consisted...
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...Let us begin our explanation of how Newton changed our understanding of the Universe by enumerating his Three Laws of Motion. Newton's First Law of Motion: I. Every object in a state of uniform motion tends to remain in that state of motion unless an external force is applied to it. This we recognize as essentially Galileo's concept of inertia, and this is often termed simply the "Law of Inertia". Newton's Second Law of Motion: II. The relationship between an object's mass m, its acceleration a, and the applied force F is F = ma. Acceleration and force are vectors (as indicated by their symbols being displayed in slant bold font); in this law the direction of the force vector is the same as the direction of the acceleration vector. This is the most powerful of Newton's three Laws, because it allows quantitative calculations of dynamics: how do velocities change when forces are applied. Notice the fundamental difference between Newton's 2nd Law and the dynamics of Aristotle: according to Newton, a force causes only a change in velocity (an acceleration); it does not maintain the velocity as Aristotle held. This is sometimes summarized by saying that under Newton, F = ma, but under Aristotle F = mv, where v is the velocity. Thus, according to Aristotle there is only a velocity if there is a force, but according to Newton an object with a certain velocity maintains that velocity unless a force acts on it to cause an acceleration (that is, a change in the velocity). As...
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...the universe through mathematics. He formulated laws of motion and gravitation. These laws are math formulas that explain how objects move when a force acts on them. Isaac Newton used three laws to explain the way objects move. They are often called Newton’s Laws. The first law states that an object at rest will remain at rest unless acted upon by a nonzero force. An object moving at a constant velocity will continue moving at a constant velocity unless acted upon by a nonzero force. In other words, an object that is not being pushed or pulled by some force will stay still, or will keep moving in the same direction at a steady speed. The tendency of an object to remain still, or keep moving in one direction at a steady speed is called inertia. The second law explains that an object’s acceleration depends on its mass and on the net force acting on it. Basically, it explains how a force acts on an object. An object accelerates in the direction the force is moving it. The third law states that if an object exerts a force on another object, then the second object exerts a force of equal strength in the opposite direction on the first object. In other words, if an object is pushed or pulled, it will push or pull equally in the opposite direction. When most people think of Isaac Newton, they think of him sitting under an apple tree, observing an apple fall to the ground. When he saw the apple fall, Newton began to think about gravity. Newton understood that gravity was the...
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...interactions between aerodynamics, stiffness and inertial forces on a structure. In an aircraft, as the speed of the wind increases, there may be a point at which the structural damping is insufficient to damp out the motions which are increasing due to aerodynamic energy being added to the structure. This vibration can cause structural failure and therefore considering flutter characteristics is an essential part of designing an aircraft. ̇ Case 1 : Flutter Analysis when there is no additional term ( ) in the aerodynamic damping For the case of simplicity we consider the following typical section model Equations of motion for this model are: ̈ ̈ ̈ (E1) ̈ (E2) where m=modal mass matrix =static unbalance =moment of inertia =spring constant Page 1 [AEROELASTICITY MIDTERM PROJECT-FLUTTER ANALYSIS ] March 14, 2012 =constant of torsional spring =displacement of typical section (positive down) =rotation angle of typical section =distance from the aerodynamic center =dynamic pressure= , where =air density and =air speed = lift force= = =Aerodynamic moment and is positive nose up Similarly assume that the motion is simple harmonic, Let, ̅ ̅ (E3) where, The factor ‘ ’ represents the frequency of oscillation...
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...Project Management PM3110 Victor Nyankah 10/24/14 Tacoma Narrow Bridge Executive Summary The Tacoma Narrows Bridge was built in 1940 at the cost of $6.4 million funded mostly by the federal government’s Public Works Administration. The purpose of the brigde was to connect Seattle and Tacoma with the Puget Sound Navy at Bremerton, Washington. It was said to be the third largest of its kind. Though it was a long bridge, it was very narrow because it only had one way traffic from each direction. It had a center span of 2800 feet and a 1000 foot approaches on each side. The bridge took nineteen months to be constructed and fell apart barely four months after its inauguration. It is however important to note that even before the inauguration, the bridge had started showing signs of incompetence and exhibiting strange characteristics which shouldn’t have gone unnoticed. The bridge started galloping and swaying and hence got the nick name, the “Galloping Gertile”. In order to under the dynamics of suspension bridges, we need to understand the physics of bridges as propagated by Newton also known as Newton’s Laws. All bridges are subject to Newton's three laws of motion. Newton's First Law states that an object at rest will stay at rest unless acted upon by an Unequal force. For a bridge, this means that unless all of the forces on a bridge remain balanced, one or more components of the bridge will move. Left uncorrected, this instability can lead to a partial or...
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...Physics Teacher Guide #11 NEWTON'S THIRD LAW OF MOTION Objective: Students will experiment with LEGO® materials to gain an understanding of Newton's third law of motion. *Vocabulary: SIR ISAAC NEWTON FORCE MOMENTUM NEWTON'S THIRD LAW OF MOTION MASS VELOCITY Create a LEGO® launch pad and projectile using an 8x16 brick, LEGO® bricks, rubber bands, string, and pencils as shown. Use the scissors to snip the string and smoothly launch the projectile brick. Have students observe the amount of recoil by measuring the launch pad's movement in the opposite direction. Stage an informal challenge where students strive to get the most distance out of their recoil. Hint: Increasing the projectile mass, or the velocity of the launch, should increase this distance. Activity 1: Materials: LEGO® bricks, String, Large rubber bands, Scissors, Rulers, Smooth, round pencils to act as rollers. Activity 2: Preparation: Prepare and test your own device prior to having your students do this experiment. Challenge your students to collectively design a larger version of the Conservation of Momentum Machine built in activity 1. Form small groups and encourage them to work together to create this super slider using LEGO® materials and found objects. Discussion: Lead a discussion focusing on key vocabulary terms. Introduce Sir Isaac Newton and his third law of motion: For every action, there is an equal and opposite reaction. This means it is not possible to exert a force...
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...Connecting Isaac Newton with Einstein’s Theory of Relativity Isaac Newton was perhaps the most influential scientist of all time; Newton (1642-1727) took the current theories on astronomy a step further and formulated an accurate comprehensive model of the workings of the universe based on the law of universal gravitation. Newton explained his theories in the 1687 revolutionary work called simply the Principia. This work also went a long way toward developing calculus as well. Albert Einstein, most famously known as a physicist, was a contributor to the scientific world with his many known researches and humanitarian work. As a Nobel Prize Winner in 1921, his chronicled and more important works include Special Theory of Relativity (1905), Relativity (English Translation, 1920 and 1950), General Theory of Relativity (1916), Investigations on Theory of Brownian Movement (1926), and The Evolution of Physics (1938). Isaac Newton’s discoveries paved the way for the creation of Einstein’s Theory of Relativity, which eventually lead the way for how science currently views time, space, energy, and gravity. Classical relativity; refined by Sir Isaac Newton, involves a simple transformation between a moving object and an observer in another inertial frame of reference. The application of Newton's mechanics to continuously distributed masses led necessarily to the discovery and application of partial differential equations, which in turn supplied the language in which alone the laws...
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