# PHY151 Review 12:00 noon, Thurs 4 th December 2014 SS-1069.

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PHY151 Review 12:00 noon, Thurs 4 th December 2014 SS-1069

Program: 12.00: General Remarks about studying, exams etc. 12:05: Cavalry charge through course topics 12:25: Interactive selection of examples/explanations etc. 12:30: pause (for 10 minutes) – (go pet a puppy, etc.) 12:40: Improvisational Problems/explanations session 1:30: Finis

General Principles Problem Solving, not formula-remembering. Read the exam instructions and know what’s on the cheat-sheet. Mental cog-wheels: CAREFULLY READ the entire exam at start. Choose which battles to fight and when to fight them. Time discipline, when studying and when writing. If you are in a hole, stop digging.

How to Approach a Problem Read the question. Don’t answer what isn’t asked! If appropriate, draw a diagram define important variables (S.I. units). State what principle you’re going to use. Don’t jump too many steps; put in numbers at end. Clearly state final answer (a box would be nice). Checks: -does number make sense? -do dimensions match?

Topics: Calculus in action: Kinematics in 1, 2 and 3D & circular. Relativity Conservation Laws and their uses: -Momentum -Energy Force and Newton’s Laws of Motion. Rotations and Rigid bodies

Calculus in action: Kinematics 3D ALL FORMULAS COME FROM THE CHEAT SHEET!

Galilean Relativity (absolute t ): Special Relativity (absolute c ):

Conservation Laws and their uses: Kinetic energy: momentum: In special relativity:

Interactions and Forces. work: (impulse) (Force) (potential energy) (power)

Kinetic Friction Static Friction Spring force Some Forces: Gravitational Potential Energy: Spring Potential Energy: (near surface)

Rotational Kinematics

Rigid bodies: centers of mass, moments of inertia Velocity: Kinetic energy: Force: Newton’s 2 nd Law: Momentum: (sometimes) Linear-to-Rotational Dynamics Rosetta Stone

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