Ch4_llewellynm


 * || Chapter 4 Honors Physics Max Llewellyn ||

__**11/15/2011 Homework**__ Newton's Laws Lesson 1 a, b, c, d
**Chapter 1 Lesson A** - http://www.physicsclassroom.com/Class/newtlaws/U2L1a.cfm
 * 1) Does Newton's First law roughly sum-up to be, "unless there is a non 0 net force, a =0"?
 * 2) Yup.
 * 3) Does this have anything to do with (very very basic) relativity?
 * 4) Yup, because at rest and at a constant velocity are nearly the same thing. Think of a ball on a train and a ball in a park, works the same right? Funky.

**Chapter 1 Lesson B -** http://www.physicsclassroom.com/Class/newtlaws/U2l1b.cfm **Chapter 1 Lesson C**
 * 1) How is inertia related to mass?
 * 2) The more mass an object has the more inertia it has, it resists changes in it's state of motion harder. Mass is the only factor that effects inertia.
 * 3) What do ramps have to do with explaining inertia (no friction)?
 * 4) If there is a symmetrical U and a ball is rolled down one side it will roll up an equal amount of height on the other side. If the U is not symmetrical then it will also reach the same height. So if the U is really a curvy L then the ball will roll forever "trying to get to the same height".
 * 5) Is inertia a force?
 * 6) No! inertia is entropy, it does not change the system it's energy inside the system. Forces are energy being expended outside a system.
 * 1) Can that entire page be summed up in one sentence?
 * 2) Yes. Inertia is an objects tendency to resist change in velocity, also known as acceleration.

**Chapter 1 Lesson D** __**11/15/2011 xxx**__ yyy
 * 1) What are some examples of balanced and unbalanced forces?
 * 2) Two identical trucks in a tug of war not moving are an example of balanced forces.
 * 3) A truck and a Prius in a tug of war where the truck is moving forward is an example of unbalanced forces.
 * 4) What does equilibrium mean?
 * 5) That all the forces on a system are balanced.
 * 6) What happens when forces are unbalanced?
 * 7) There is a nonzero net force, so there is then acceleration in one direction.