phy151 review 12:00 noon, thurs 4 th december 2014 ss-1069

PHY151 Review12:00 noon, Thurs 4th 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 2nd Law:

Momentum:(sometimes)

•Linear-to-Rotational Dynamics Rosetta Stone