![]() Science consists of the theories and laws that are the general truths of nature as well as the body of knowledge they encompass. This module discusses the realm of physics (to define what physics is), some applications of physics (to illustrate its relevance to other disciplines), and more precisely what constitutes a physical law (to illuminate the importance of experimentation to theory). These analytical skills will help you to excel academically, and they will also help you to think critically in any professional career you choose to pursue. More importantly, you will gain analytical abilities that will enable you to apply these laws far beyond the scope of what can be included in a single book. In learning to apply these laws, you will, of course, study the most important topics in physics. The unifying aspect of physical laws and the basic simplicity of nature form the underlying themes of this text. Apparently unrelated topics are connected through broadly applicable physical laws, permitting an understanding beyond just the memorization of lists of facts. Understanding this law makes it easier to learn about the various forms energy takes and how they relate to one another. The law of conservation of energy (which says that energy can change form but is never lost) ties together such topics as food calories, batteries, heat, light, and watch springs. For example, what do a bag of chips and a car battery have in common? Both contain energy that can be converted to other forms. It is the underlying order of nature that makes science in general, and physics in particular, so enjoyable to study. We have found that nature is remarkably cooperative-it exhibits the underlying order and simplicity we so value. As humans, we make generalizations and seek order. In the face of all these details, we have discovered that a surprisingly small and unified set of physical laws can explain what we observe. From the flight of birds to the colors of flowers, from lightning to gravity, from quarks to clusters of galaxies, from the flow of time to the mystery of the creation of the universe, we have asked questions and assembled huge arrays of facts. Over the centuries, the curiosity of the human race has led us collectively to explore and catalog a tremendous wealth of information. Every day, each of us observes a great variety of objects and phenomena. The physical universe is enormously complex in its detail. ![]() ![]() Mechanics applies to a wide range of phenomena, essentially to anything that moves, but this course will highlight ties to and applications in the physical sciences. Students intending to take Physics courses beyond Introductory Physics or continue in the Physical Sciences stream should take MATH 1003 and PHYS 1021 as co-requisites to this course.Ĭo-requisite: One of MATH 1001 or MATH 1003, or permission of the instructor.Figure 1.2 The flight formations of migratory birds such as Canada geese are governed by the laws of physics. Understanding the causes of motion can be achieved by considering the forces acting on the object and/or by focusing on the conserved properties of the system (momentum, energy, angular momentum). Describing the motion of objects requires understanding the basic kinematics quantities position, displacement, velocity, and acceleration, as well as the connection between them. ![]() Mechanics is the study both of how objects move and why they move the way they do. This course is an introduction to the branch of physics called mechanics.
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