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Lecture 10

Lecture 10 - PHYSICS 220 Lecture 10 Potential Energy and...

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PHYSICS 220 Lecture 10 Potential Energy and Energy Conservation Lecture 10 Purdue University, Physics 220 1

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Study Guide – Exam 1 Understand the physics of motion – displacement, velocity, and acceleration. Know the difference between instantaneous and average velocity Understand how to use the graphical method to determine motion Practice problems: Chapter 2 – Problems 27, 29, and 33 Understand the vector nature of velocity Be able to find the vector sum of velocities Be able to find the magnitude and angle relative to a coordinate system Practice problems: Chapter 2 – Problem 57 and 59 Practice problems: Chapter 4 – Problems 41 and 42 Understand weight and normal force Be able to apply Newton’s Second Law to objects with constant velocity Know how to make free body diagrams Be able to apply Newton’s Second Law to objects undergoing acceleration Understand the concepts of weightlessness and apparent weight Practice problems: Chapter 3 – 31 and 34 Lecture 10 Purdue University, Physics 220 2
Study Guide – Exam 1 Understand the nature of frictional forces from both static and kinetic friction. Be able to calculate the frictional force and know in which direction this force acts Given a known force be able to determine the coefficient of friction Practice problems: Chapter 3 – Problems 37 and 41 Understand the vector nature of force Be able to decompose forces into x- and y- components using trigonometric functions Practice problems: Chapter 4 – Problems 3 and 7 Understand uniform circular motion Be able to calculate centripetal acceleration Be able to calculate the force needed to make an object travel with constant speed in a circle

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Lecture 10 - PHYSICS 220 Lecture 10 Potential Energy and...

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