Grading key
Exam 3 Spring 2011
Part A 6 points each. Grade only the answer. Put an X through their answer if it is
wrong.
1 A
2 D
3 A
7
8
9
10
4 A
5 E
6 B
C
C
B
B
Part B 8 points each. Grade only the answer. Put an X through their answer if it is
wrong.
1
Physics I Class 23
Waves
1
Types of Waves
Mechanical - need material medium
sound (in air and in materials).
water wave
seismic waves
Electromagnetic - no medium needed!
radio
microwaves
light
Quantum Matter Waves
photons
protons
electrons, etc.
2
Mechani
Physics I
Class 19
Angular Momentum
Translational vs. Rotational Motions
Page 312
New
2
Angular Momentum of a Particle
Rotational analog analog of linear momentum.
center of rotation
(any point defined)
Start with a free particle moving in a
straight lin
Physics I
Class 21
Newtons Theory of
Gravitation
Forces in Nature
Forces in Physics 1
(so far)
We have encountered the following forces in Physics 1:
Gravity
Ideal Springs (Hookes Law)
Pushes and Pulls
Friction
Most of our examples used composite forces (
Physics I Class 11
Potential Energy and Kinetic Energy in
Spring Systems
1
Review: Energy Conservation
Recall the Work-Kinetic Energy Theorem:
Wnet K
For the conservative forces we have,
U Wcons
If the non-conservative forces are negligible, then
Wnet Wco
Physics 1, Class 25
Sound Waves
-Standing Waves in Sound.
-Doppler Effect.
-Beats
1
Review: Mathematical form of a standing wave:
y1 ym sin(kx t)
(positive v)
y2 ym sin(kx t)
(negative v)
ysum 2 ym sin(kx)cos(t)
2
Standing sound wave pattern in pipes two
Physics I-Class 13
Conservation of Momentum
1
Particle Momentum
The impulse-momentum theorem reveals a conservation law for
particle motion:
Fnet dt d p p
When Fnet= 0, the particle momentum is constant.
Remarkably, momentum is also conserved for a syst
Phys I Class 22
Oscillations
Repetitive behavior is common in nature.
Easy to study
Useful as engineered devices.
Introduction to wave motion
Simple Harmonic Motion
Many mechanical systems oscillate, often approximately
as simple harmonic motion.
Simple h
Class 24
Waves Superposition & Standing Wave
Transverse and longitudinal waves
Transverse: string or wire.
Longitudinal: sound
1
Review
Sinusoidal wave:
2
y ( x, t ) ym sin ( x vt )
y( x, t ) ym sin kx t
Time t = 0
wavelength
T period
f 1/ T = frequ
Physics 1- Class 18
Rolling and Newtons 2nd Law
in Angular forms
- A combination of purely rotational and purely translational motions
- Translation:
- Rotation:
= M
= I
1
Smooth Rolling of a Wheel
O is the center of mass.
vcom is the linear speed of
Physics I Class 20
Equilibrium
Definition of equilibrium
Stable and unstable equilibrium
Center of gravity (COG)
1
Definition of Equilibrium for Rigid Objects
When dealing with objects that
have finite size, we specify external
forces and external torques
Physics I Class 12
Impulse and
Momentum
1
Momentum
2
Change of Momentum
+3
+3
= 0 kg m/s
+3
-3
=
+6 kg m/s
3
Example of change of momentum
pi
pf
x
Direction = positive y direction
Collision of a ball with a bat and impulse
5
Connecting Force and Momentum
PHYS-1200
Physics II
February 26, 2014
NAME_
SECTION _
Exam 1A
Circle your section number below . . . . . and write it above !
SECTION
NUMBER
1
2
3
4
5
6
7
8
9
10
Extra time
INSTRUCTOR
Scott Dwyer
Scott Dwyer
Michael Trinkala
Michael Trinkala
Michael Trin
PHYS-1200 PHYSICS II
FINAL - A
NAME_
Dec. 12, 2008
Exams for each section are given in the rooms listed. If you are in the wrong section,
move to the right one immediately. Circle your section number below.
SECTION
NUMBER
1
2
3
4
5
6
7
8
9
10
11
12
EXAMIN
Physics 1200
Lecture 25 S2014
Metals and Insulators
Fermi Level
Occupation function
Doping
Devices
1
Quiz 26
1) At room temperature, the probability that
an electronic state 0.1 eV above the Fermi
level has an electron in it is:
A) close to one.
B) one ha
Part A (6 points each)
Circle the letter of the correct answer. Numerical answers have been rounded to the digits
shown.
1.
A 1.2-kg block of wood slides across a rough floor and comes to rest after moving 2.3
meters. If its initial speed was 52 m/s, how
Name:_
Part A (60 points, 6 points each)
Circle the letter of the correct answer. Numerical answers have been rounded to the digits
shown.
1) A horizontal meter stick is held by a frictionless bearing at one end and a person at the other
2
end. Its mass i
Name: _
On this exam, please neglect any relativistic and/or quantum mechanical effects. If you dont
know what those are, dont worry, we are neglecting them! On all multiple-choice questions,
choose the best answer in the context of what we have learned i
Name:_
Part A (6 points each)
Circle the letter of the correct answer. Numerical answers have been rounded to the digits
shown.
1. If the standard deviation from the mean for a set of measured values is large it is safe to
conclude that:
A. The mean value
Name _
On this exam, please neglect any relativistic and/or quantum mechanical effects. If you dont
know what those are, dont worry, we are neglecting them! On all multiple choice questions,
choose the best answers in the context of what we have learned i
Name: _
On this exam, please neglect any relativistic and/or quantum mechanical effects. If you dont
know what those are, dont worry, we are neglecting them! On all multiple-choice questions,
choose the best answer in the context of what we have learned i
Name: _
On this exam, please neglect any relativistic and/or quantum mechanical effects. If you dont
know what those are, dont worry, we are neglecting them! On all multiple-choice questions,
choose the best answer in the context of what we have learned i
Name:
Useful Formulas
1.
v v 0 a t t 0
2.
x x0 v0 (t t 0 ) a (t t 0 )
3.
4.
5.
6.
7.
8.
9.
10.
11.
12.
13.
14.
15.
16.
17.
18.
19.
20.
29.
a tangential r
30.
0 t t 0
x x0 12 (v0 v)(t t 0 )
31.
0 0 (t t 0 ) 12 (t t 0 ) 2
x x0 v (t t 0 ) 12 a (t t 0 ) 2
Useful Formulas
1.
v v0 at t 0
24.
U g m g ( y y0 )
2.
x x0 v0 (t t 0 ) 12 a(t t 0 ) 2
25.
U s 12 k ( x x0 ) 2
3.
x x0 12 (v0 v)(t t 0 )
4.
x x0 v(t t 0 ) 12 a(t t 0 ) 2
26.
27.
28.
W E Emec Ethermal Eint ernal
s r
vtangential r
29.
a tangential r
5.
6.
PHYS-1200 PHYSICS II
Exam 3 Problem types
SPECIAL RELATIVITY
Understanding Reference Frames
The proper time between two events is the time measured by a clock that is in the same position with
respect to both events.
The proper length between two points
Topics Distribution for PHYS 1200 Exam 3 Spring 2013
Note: The detailed topics listing are more important for Exam 3 than for previous exams because the
potential range of material based on the chapter content is very large. We will focus the exam on topi
a fee
NAME and Section. S ewe we.
PHYS-1200 PHYSICS 11 Fall 2013
Lab 3: Electric Potential and Potential Energy
Unless, of course, you come from a third world country without electricity like Gilligans Island, you all
know that when you plug something int
Name:
PHYS-1200 PHYSICS II
Lab? : Faradays Law
A charge creates an electric eld, and any moving charge creates a magnetic eld.
An electric eld exerts a force on any charge, but a magnetic eld exerts a force only on a moving charge.
So how can it be that
Name: SWDWZ% Section: g 21
* PHYSICS 11 Lab 6: Simple Circuits r
Part 1. Preliminary -
Capacitors: Consider three capacitors in parallel - 1uF,2uF and 3uF. The combination is attached to a
battery that delivers 10 volts. In the space below, draw this Ci
Electric Charge
Conductors charge can move freely. Insulators- charge cannot move freely.
An object becomes positively charged by removal of negative charges.
Coulombs Law describes the electrostatic force (F) between charges separated by r
F=
|q 1|q2|
4