Mechanics

 
   Skills
Mechanics, for this level, represents the lion's share of material. Mechanics can be further catagorized into "Kinematics" and "Newton's Laws." Each of these topics can, in turn, be broken down to consider motion in a Linear or Circular fashion.

We start with kinematics which analyzes motion without really considering why things move. The idea is to be able to predict where things came from and where they will go given set of existing measurements.

1D-Kinematics
Physics Illuminations (1D Kinematics) Problem Solving Slide Show [PDF]
Astro"nut" PelletGun Trampoline
2D-Kinematics
Physics Illuminations (2D Kinematics) Airplane Drop (from class)
Projectile Motion Golf Range (leave air resistance off and try to calculate where the ball will hit.)

This is the meat of the matter. Forces are the origin of all forms of transformation in both classical and modern physics. In mechanics this manifests itself as a change in the state of motion. This is the essense of Newton's discovery. Except for really wierd circumstances in non-euclidian space, a force will give rise to an acceleration and accelerations must have invoved a force.

Newton's Laws
Introducion [PDF] Slide show from class The BIG Picture How it all ties together
Free Body Diagrams This provides some practice for drawing the pesky diagrams that are essential to setting up the equations.

Motion in a circle is just a special case where the speed of an object can be constant but still have acceleration due to the constantly changing direction. In this circumstance Newton's second law takes a special form.

Circular Motion
Centripetal Acceleration Derivation For a retelling of what we did in class Centripetal Force Calculator for fun and profit.
Rotational Kinematics [PDF] how we can use kinematics in the "round."
Orbits! There are a number of referenced sites here. Start with the "model solar system" and work your way to the more complicated systems. There is even a section on the math!

Forces that are position dependant can give rise to some interesting types of motion. The simplest form of these forces is one that varies linearly with displacement from some starting position. If the force opposes the displacement then the motion will be a type we call "Harmonic."

Simple Harmonic Motion
Overview Presentation The presentation done in class. Review Sheet and Problems for your amusement
SHO Activities so you can mess with some concepts. Resonance A chance to disccover how to get your car unstuck.
   Mechanics
   Energy &
 Momentum
   Fluids
   Thermo
   Electric. &
 Magnetism
   Waves
   Modern
 
 
8/24/09 11:02 PM