PC1431-L05 - All figures/diagrams/illustrations used in...

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All figures/diagrams/illustrations used in these lecture slides are copyrighted materials from the text book adopted for this module: Physics for Scientists and Engineers with Modern Physics, Serway & Beichner (5 th ed.) or Serway & Jewett (6 th ed.) These lecture slides are strictly for use related to the PC1431 Physics IE module. Any other use,

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PC1431 Lecture 5 The Laws of Motion
PC1431 Lecture 5 3 Objectives Understand the concepts of force and mass/inertia. Understand Newton’s first law. Understand Newton’s second law.

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PC1431 Lecture 5 4 What causes motion? What causes changes in motion?
PC1431 Lecture 5 5 Two Main Factors The forces acting on an object The mass of the object.

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PC1431 Lecture 5 6 Newton’s Laws of Motion Describes the relationship between the motion of a body (kinematics) and the mass and forces acting on it. Classical mechanics deals only with objects: large compared with atomic dimensions (>>10 -10 m), but <<10 10 m (cf. dark matter in galaxies) move at speeds v << c .
PC1431 Lecture 5 7 Domain of Classical Mechanics Speed Size Relativistic Quantum Mechanics Quantum Mechanics Relativity Classical Mechanics Cosmological Physics Relativistic Cosmology c Nucleus (10 -14 m) Atom (10 -10 m) Galaxy (10 20 m) c/10

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PC1431 Lecture 5 8
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