PHYS 172
Spring 2010
Final exam practice
1. The final exam will have 20 multiple choice questions and therefore cannot and does
not cover everything that was presented in the course. While the practice exam difficulty
level is similar to the real final ex

from _future_ import division
from visual import *
from visual.graph import *
scene.width=600
scene.height = 760
#constants and data
g = 0
#m/s^2
mball = 0.45 # change this to the mass (in kg) from your experiment.
L0 = 0.10
# relaxed length of your sprin

A man sits with his back against the back of a chair, and he pushes a block of
mass m = 3 kg straight forward on a table in front of him, with a constant
force F = 26 N, moving the block a distance d = 0.7 m. The block starts from rest and slides on a
low

Semester Plan Update (Due Week 11)
Directions: Fill out all components of the Semester Plan Update below. You will need your original Semester Plan to refer
to as you answer some of the questions. Once completed, please submit via Blackboard.
Name: Eryn S

PHYS 172H: Modern Mechanics
Fall 2016
Lecture 18
Wednesday, November 2nd
RECAP : COLLISIONS
Collision : Any interaction between objects that
changes their energy and/or momentum.
ELASTIC
INELASTIC
Momentum Conserved Momentum Conserved
K.E. Conserved
K.

Wheel of Leadership Self-Assessment: Personal
The unexamined life is not worth living. Socrates
This assessment provides you with a starting point to evaluate the balanceor imbalancein your current personal life.
Find a quiet place and some focused time t

from _future_ import division
from visual import *
from visual.graph import *
scene.width=600
scene.height = 760
#constants and data
g = 0
#m/s^2
mball = 0.45 # change this to the mass (in kg) from your experiment.
L0 = 0.10
# relaxed length of your sprin

PHYSICS 272H
Electric & Magnetic Interactions
Prof. Hisao Nakanishi
hisao@purdue.edu
Room: 264, Phone: 494-5522
Today
Course Information
Charges
Forces
Electric Field
EMERGENCY PREPAREDNESS
A MESSAGE FROM PURDUE
To report an emergency, call 911. To o

from _future_ import division
from visual import *
from visual.graph import *
scene.width=600
scene.height = 760
#constants and data
g = 0
#m/s^2
mball = 0.45 # change this to the mass (in kg) from your experiment.
L0 = 0.10
# relaxed length of your sprin

Chap. 2
Forces, The momentum principle
Outline
The Fundamental Interactions
Forces(Free body diagram): Gravitational, Normal, Friction, Tension, Hookes Law
The momentum principle
Applying the momentum principle
Equations of motion
Derivative form of th

Physics 100, Spring 2014
Mechanics and statics
Department of Engineering
American University of the
Middle East (AUM)
Chapter1
Interactions, Vectors, Kinematics and
Momentum
1
Detecting Interactions
Physics seeks to find patterns in nature to ultimately f

from _future_ import division
from visual import *
from visual.graph import *
scene.width=600
scene.height = 760
#constants and data
g = 9.8
#m/s^2
mball = 0.45 # change this to the mass (in kg) from your experiment.
L0 = 0.26
# relaxed length of your spr

PHYS 172H: Modern Mechanics
Fall 2016
Lecture 06
Wednesday, Sept. 14th
RECAP : Real Solids
Solid:
Balls (nuclei), connected by
Spring (chemical bond)
Finding Bond Length:
Start with
Density:
Molecular Mass:
# of Atoms per cm3 :
Volume (in cm3) pe

PHYS 172H: Modern Mechanics
Fall 2016
Lecture 11
Monday, October 3rd
RECAP: Predicting Orbits of Comets
When are orbits of comets
closed like planets?
can escape to infinity?
Bound state:
K U 0
Unbound state: K U 0
2
Initial State:
Final State:
RECAP:

PHYS 172: Modern Mechanics
Spring 2014
DE =W +Q
Dp =FDt DE =W +Q
Dp =FDt
Lecture 10 The Energy Principle
DL =tDt
DL =tDt
Thursday Feb 20
Twirling Wine Glass
What is the minimum speed required?
Lecture 10 The Energy Principle
the energy principle
co

PHYS 172: Modern Mechanics
Spring 2014
Chapter 10: Collisions
www.tensionnot.com
Lecture 18 Collisions
http:/www.aolcdn.com
Read1
10.1 10.7
Key Ideas of Chapter 10
Collisions are brief interactions involving large forces
To analyze collisions in detail, w

PHYS 172: Modern Mechanics
Lecture 20 Angular momentum
Spring 2014
1
Read 11.4 11.7
The angular momentum principle
dp
= Fnet
dt
dL A
=?
dt
A
d ( rA p )
dt
drA dp
=
p +rA
dt
dt
= Fnet
=v g mv =0
The angular momentum principle
for a point particle
Fne

PHYS 172: Modern Mechanics
Lecture 21 Angular Momentum Quantization
Spring 2014
1
Read 11.8 11.11
Exam 3 Wednesday, April 16th, 6:30-7:30 PM Elliott Hall
1.
2.
3.
4.
5.
6.
Absences must be excused in advance by filing an Absentee Report form in Rm
144 PHY

PHYS 172: Modern Mechanics
Lecture 25 The Boltzmann Distribution
Spring 2014
1
Read 12.7
Summary: Foundations
Einstein Model
of Solids
(q +N - 1)!
# microstates
W =
q !(N - 1)!
(N oscillators, q quanta)
Fundamental assumption of statistical mechanics
Over

PHYS 172: Modern Mechanics
Lecture 23 Entropy and Temperature
Spring 2014
1
Read 12.3 - 12.5
First, an important reminder about multiplying probabilities:
A deck of 52 cards has 4 aces. Starting from a randomly-shuffled deck, what is
the probability that

PHYS 172: Modern Mechanics
Lecture 22 Counting Statistics
Spring 2014
Read 12.112.2
Reversibility
Movie taken and modified from: www.theclam.com/Video/JumpingIndex.asp
Today: Counting Statistics
Need For Statistical Considerations
Einstein Model and Count

Spring 2016
Physics 172 Recitation 1
Newtons First Law of Motion
The purpose of this recitation is to give you some experience using vectors to represent
an objects motion and Newtons first law of Motion.
Readings: Sections 1.1-1.7
Learning Objectives:
1.

Fall 2016
Physics 172H Recitation 2
Updating the Momentum
The purpose of this recitation is to give you experience working with the concept of an objects
momentum and with the update form of the momentum principle.
Readings: Chapter 2.1-2.6
Learning Objec

Fall 2016
Physics 172H Recitation 6
Fundamental Principles
The purpose of this recitation is to give you some experience working with the new
Energy Principle and to compare and contrast its predictions with those made by the
Momentum Principle.
Readings:

Physics 100, Spring 2014
Mechanics and statics
Department of Engineering
American University of the
Middle East (AUM)
Chapter1
Interactions, Vectors, Kinematics and
Momentum
Detecting Interactions
Physics seeks to find patterns in nature to ultimately for