Chapter 4
The Laws of Motion
Classical Mechanics
Describes the relationship between the
motion of objects in our everyday world and
the forces acting on them
Conditions when Classical Mechanics does
not apply
very tiny objects (< atomic sizes)
objects mov
Chapter 5
Energy
Forms of Energy
!
Mechanical
!
!
!
!
!
Focus for now
May be kinetic (associated with
motion) or potential (associated with
position)
Chemical
Electromagnetic
Nuclear
Some Energy
Considerations
!
Energy can be transformed from
one form to
Chapter 6
Momentum and Collisions
Practice Questions from SV-Ch06
Impulse(and(Momentum(Questions
Problems:(1,(4,(5,(7,(9,(13,(15
Conservation(of(Momentum(Questions
Problems:(19,(20,(22
Momentum
The linear momentum of an object of mass
m moving with a velo
Chapter 7
Rotational Motion
and
The Law of Gravity
The Radian
!
!
!
The radian is a
unit of angular
measure
The radian can be
defined as the arc
length s along a
circle divided by
the radius r
More About Radians
!
Comparing degrees and radians
!
Convertin
Video: 05-14
Circle with a gap.
What is the trajectory of a ball when it
encounters the gap?
Video: 05-14
Circle with a gap.
What is the trajectory of a ball when it
encounters the gap?
Centripetal Acceleration
n
n
An object traveling in a circle, even
th
Chapter 8
Rotational Equilibrium
and
Rotational Dynamics
Japan earthquake accelerated Earth's
rotation, study nds
shortened day by 1.8 microseconds
Sumatra quake shortened day by 6.8
microseconds
Why?
via: http:/www.csmonitor.com/
Science/2011/0314/Ja
Torque and Angular
Acceleration
!
When a rigid object is subject to a net torque
(0), it undergoes an angular acceleration
!
The angular acceleration is directly
proportional to the net torque
!
The relationship is analogous to F = ma
!
Newtons Second Law
States of Matter
!
Solid
!
Liquid
!
Gas
!
Plasma
Solids
!
Has denite volume
!
Has denite shape
!
Molecules are held in
specic locations
!
by electrical forces
!
vibrate about equilibrium
positions
!
Can be modeled as springs
connecting molecules
More Abou
Fluids in Motion:
Streamline Flow
n
Streamline ow
n
n
n
Every particle that passes a particular point moves
exactly along the smooth path followed by particles
that passed the point earlier
Also called laminar ow
Streamline is the path
n
Different streaml
Question:
A mass m is attached to a spring with known spring constant of k, compressed a
distance x, and then released as shown in the gure. The mass slides over a
rough patch with coefcient of kinetic friction k until it passes the equilibrium
point of t
PROBLEM 03.17
SOLVED
The best leaper in the animal kingdom is the puma, which can
jump to a height of 12 ft when leaving the ground at an angle
of 45. With what speed, in SI units, must the animal leave the
ground to reach that height?
PROBLEM SOLVING STR
Chapter 3
Vectors and
Two-Dimensional Motion
Types of Coordinate
Systems
Cartesian
Plane polar
5
Cartesian coordinate
system
Also called rectangular
coordinate system
x- and y- axes
Points are labeled (x,y)
6
Plane polar coordinate
system
Origin and refer
Name (last, rst)_
Exam 1 - Fall 2011
PHY 01410, Section 002, Form: 01
(Double check to ensure your bubble sheet is lled out COMPLETELY and that your name is also on your exam form and
all papers. Your grade will be reduced by 2% if the grader nds you are
Name (last, rst)_
Exam 1 - Fall 2011
PHY 01410, Section 002, Form: 02
(Double check to ensure your bubble sheet is lled out COMPLETELY and that your name is also on your exam form and
all papers. Your grade will be reduced by 2% if the grader nds you are
Name (last, rst)_
Exam 2 - Fall 2011
PHY 01410, Section 002, Form: 01
(Double check to ensure your bubble sheet is lled out COMPLETELY and that your name is also on your exam form and
all papers. Your grade will be reduced by 2% if the grader nds you are
Name (last, rst)_
Exam 2 - Fall 2011
PHY 01410, Section 002, Form: 02
(Double check to ensure your bubble sheet is lled out COMPLETELY and that your name is also on your exam form and
all papers. Your grade will be reduced by 2% if the grader nds you are
Name (last, rst)_
Exam 3 - Fall 2011
PHY 01410, Section 002, Form: 01
(Double check to ensure your bubble sheet is lled out COMPLETELY and that your name is also on your exam form and
all papers. Your grade will be reduced by 2% if the grader nds you are
Name (last, rst)_
Exam 3 - Fall 2011
PHY 01410, Section 002, Form: 02
(Double check to ensure your bubble sheet is lled out COMPLETELY and that your name is also on your exam form and
all papers. Your grade will be reduced by 2% if the grader nds you are
Name (last, rst)_
Exam 4 - Fall 2011
PHY 01410, Section 002, Form: 01
(Double check to ensure your bubble sheet is lled out COMPLETELY and that your name is also on your exam form and
all papers. Your grade will be reduced by 2% if the grader nds you are
Name (last, rst)_
Exam 4 - Fall 2011
PHY 01410, Section 002, Form: 02
(Double check to ensure your bubble sheet is lled out COMPLETELY and that your name is also on your exam form and
all papers. Your grade will be reduced by 2% if the grader nds you are
Previous Semester Exams
This is a large collection of my old exams and represents almost all the exams I have
given since teaching at Texas State. They are presented as-is with no warranty implied
or expressed. The answer keys are mostly correct but there