Review for Test #2
Responsible for:
- Chapters 5 & 6, sections 3-6, 7-1, 7-2, 12-1, 12-2, and
12-3* (also chapters 1-4)
- Notes from class
- Problems worked in class
- Homework assignments
Test form
Chapter 13: Oscillatory Motion
We continue our studies of mechanics, but
combine the concepts of translational and rotational
motion.
We will revisit the ideal spring. In particular, we
will re-exam
The Simple Pendulum
An application of Simple Harmonic Motion
A mass m at the end of a massless
rod of length L
There is a restoring force
which acts to restore the
mass to =0
F = mg sin
Compare t
Chapter 14: Wave Motion
We now leave our studies of mechanics and
take up the second major topic of the course
wave motion (though it is similar to SHM)
Wave a traveling disturbance which carries
e
Sound Waves
Sound is a longitudinal wave
It requires a medium to convey it, e.g. a
gas, liquid, or solid
In a gas, the amplitude of the sound wave is
air pressure a series of slightly enhanced
(cre
Superposition, Interference, and
Standing Waves
In the first part of Chap. 14, we considered the
motion of a single wave in space and time
What if there are two waves present
simultaneously in the s
Page 1
Test #4, PHYS 1111, Section
Nov. 25, 2002, Stancil
5 (12:20-1:10pm)
This is a multiple choice test of 13 questions. Give only one answer for
each question. Besure to enter your name and SSN on
Review for Test #1
Responsible for:
- Chapters 1, 2, 3, and 4 (except 3.6)
- Notes from class
- Problems worked in class
- Homework assignments
Test format:
- 18 problems (5 points each)*
- multiple
Review for Test #3
Responsible for:
- Chapter 7 (7-3, 7-4), 8 (except 8-5), 9 (except 9-8), 10
(10-1 to 10-4); also chapters 1-7, 12
- Notes from class
- Problems worked in class
- Homework assignmen
Review for Test #4
Responsible for:
- Chapter 8 (8-5), 10 (10-5,10-6), 11, 13 (except 13-7,
13-8), 14 (14-1 to 14-4); also chapters 1-10, 12
- Notes from class
- Problems worked in class
- Homework a
Orbital Motion of Satellites (12.3)
M
m
Satellites move in circular
(or more generally, elliptical)
orbits
Compute their period and
speed by applying Newtons
2nd Law in the radial direction
Orbital
Chapter 12: Universal Force
due to Gravity
Every object in the Universe exerts an attractive force
on all other objects
The force is directed along the line separating two
objects
Because of the 3r
Static Equilibrium
In Chap. 6 we studied the equilibrium of pointobjects (mass m) with the application of Newtons
Laws
F
x
= 0,
F
y
=0
Therefore, no linear (translational) acceleration,
a=0
For rig
Work done by a spring
We know that work equals force times
displacement
But how to we calculate the work due to a nonconstant force?
Reconsider the restoring force of a spring
Fs = kx
Hookes Law fo
Page 2
6.
In simple harmonic motion, the speed is greatest at that point in the
cycle when
a. the magnitude of the acceleration
is a maximum
b. the displacement
is a maximum
,(JO q~o
@ the magnitude o
Chapter 7: Energy and Work
Alternative method for the study of motion
In many ways easier, gives additional
information
Kinetic energy: consider an object of mass m
and speed v, we define the kinet
Page 1
Test #1, PHYS 1111, Section
5 (12:20-1:
;
Opm) , Stancil
This is a multiple choice test of 15 questions. Give only one answer
each question. Besure to enter your name and SSN on the form.
1.
fo
Potential Energy and Conservation of
Energy
Work Done by Gravity
If one lifts an object of mass m from the floor
(yi=0) to a height yf=h, you have done work on the
object
W = F cos y = mg( y f y i )
Page 2
6.
The horizontal and vertical components of the initial velocity of a
football are 24 m/s and 7 m/s respectively. What is the initial velocity
of the football?
,J
a. 31 m/s
Voy "'",2.A1'l j
I
Example problem
If it takes 4.00 J of work to stretch a
Hookes law spring 10.0 cm from its
unstretched length, determine the extra
work required to stretch it an additional
10.0 cm.
Conservative and
Page 3
11. A bullet is fired with a certain velocity at an angle 8 above the
horizontal at a location where g = 10.0 m/s2. The initial x and y
components of its velocity are 86.6 m/s and 50 m/s respec
Chapter 9: Impulse,
Momentum, and Collisions
Up to now we have considered forces which have a
constant value (does not depend on time) throughout
the motion and no explicit time duration
Now, lets c
Example
A 45-kg swimmer runs with a horizontal velocity of
+5.1 m/s off of a boat dock into a stationary 12-kg
rubber raft. Find the velocity that the swimmer and
raft would have after impact, if ther
Chapter 10. Rotational Kinematics
Up to now, we have only considered pointparticles, i.e. we have not considered their shape
or size, only their mass
Also, we have only considered the motion of
poin
Chapter 11. Rotational Dynamics
As we did for linear (or translational) motion,
we studied kinematics (motion without regard to
the cause) and then dynamics (motion with regard
to the cause), we now