Physics Project 01 by Shaun Tan

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Physics Project 01 by Shaun Tan

  1. 1. Physics (Summary: Kinematics to Dynamics) Shaun Andre V. Tan Fourth Year B Teacher: Engr. Philip P. Carpina Bacolod Tay Tung High School Physics (Summary: Kinematics to Dynamics) Shaun Andre V. Tan Fourth Year B Teacher: Engr. Philip P. Carpina Bacolod Tay Tung High School
  2. 2. •What is Physics? • Physics, a branch of Science, is the study of energy, force, and matter and its motion • It is commonly called the most basic science • It deals using equations and units ©Shaun Andre V. Tan (August 2013)
  3. 3. 1514 Nicolaus Copernicus develops his heliocentric theory. He publishes it in 1543, a few days before his death. 1604 Galileo Galilei proves that falling bodies are accelerated towards the ground at a constant rate. He also shows that the distance for a falling object increases as the square of the time. 1609 Johannes Kepler publishes his First and Second laws of planetary motion in a book entitled Astronomia Nova. 1613 Galileo Galilei introduces his principle of inertia. 1619 Johannes Kepler publishes his Third law of planetary motion. 1638 Galileo introduces the concept of the relativity of motion in his Two New Sciences. 1665-1966 Isaac Newton begins his work on the motion of bodies. He also completes his theory of colors, develops the main ideas on the calculus, and his law of gravitation. … Physics is continually developed… A Brief Look Back at Physics… 425 BC Democritus proposes that all matter is made of small indivisible particles that he calls "atoms." 280 BC Aristarchus of Samos determines the relative distances of the sun and the moon from the earth. He also determines the relative sizes of the sun, the moon and the earth. These considerations lead him to propose that the earth revolves around the sun. 240 BC Archimedes discovers his principle of buoyancy (Archimedes' Principle). 235 BC Eratosthenes develops a method to measure the circumference of the earth. 130 Ptolemy develops his a theory of the motion of the heavenly bodies. According to his theory, the earth is at the center of the universe and the sun and known planets revolve around it. Calle, Carlos. Superstrings and Other Things: A Guide to Physics. (2001)©Shaun Andre V. Tan (August 2013)
  4. 4. •Motion • It is the state of changing something’s position • It is relative, meaning an objects position depends on where they exist in relation to other things • It can be branched out into two… Motion Kinematics Dynamics -studies forces and their effects on motion-the mathematical representation of motion Ground The object is moving in relation to the ground Ground ©Shaun Andre V. Tan (August 2013)
  5. 5. • The Mathematical representation of motion • Described with scalars and vectors • Makes use of Kinematic Equations *Scalars – Magnitude only (e.g. Time (t), Distance, Speed) Vectors – Magnitude with Direction (e.g. Displacement (d), Velocity (V), Acceleration (a)) •Kinematics Total distance covered Distance between A and BSpeed + Direction ©Shaun Andre V. Tan (August 2013)
  6. 6. •Free Fall Motion •• With this in mind, we can predict the distance of dropped objects in a given time… •Linear Motion • It is the motion along a straight line ©Shaun Andre V. Tan (August 2013)
  7. 7. •Kinematic Graphing (At rest…)(In Constant Motion…)(In Accelerating Motion…) ©Shaun Andre V. Tan (August 2013)
  8. 8. •Projectile Motion • It is a motion where there is one force applied at the beginning of the trajectory (path of motion) after which gravity is the only force interfering it • Its trajectory is parabolic, meaning it can be divided into two equal parts ©Shaun Andre V. Tan (August 2013)
  9. 9. •Dynamics • It studies forces and its effect on motion • An object at rest stays at rest unless acted on by an unbalanced force, and an object in motion stays in motion with the same velocity unless acted upon on by an unbalanced force. a quantity that is dependent on inertia • For every action, there is an equal and opposite reaction. Forces MotionDynamics Newton’s Laws Inertia Mass Action Reaction Action Force Reaction Force Acceleration AccelerationForce Friction Mass Weight At rest Unbalanced Force Unbalanced Force Constant Motion Unbalanced Force Therefore: Force Acceleration /Mass = The force resisting the relative motion of surfaces Friction is divided into: • Static • Friction at rest to motion • Kinetic • Friction at motion Friction is… Action Force Reaction Force= ©Shaun Andre V. Tan (August 2013) Forces MotionDynamics Newton’s Laws Inertia Mass Action Reaction Action Force Reaction Force Acceleration AccelerationForce Friction Mass Weight
  10. 10. DISCOVER the point is understand This is only the of Physics… what later on. BEGINNING IMAGINE WE WILL LEARN TRUTHS them. All EASY once DISCOVERED; they are DISCOVERING -Galileo Galilei are to ©Shaun Andre V. Tan (August 2013) THANK YOU!!! Presentation by Shaun Andre Tan

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