1
Physics 1201 Exam II Solutions
Exam Info. Average: 79. Distribution: 1019 (1), 2039 (0), 4049 (2), 5059 (0), 6069 (1), 7079 (5), 8089
(4), 90100 (10). How to compute your current letter grade: add your rst seven quiz scores (70 possible), your
rst six l
Physics 1201 Exam III Solutions
1
Name: Solutions
Exam Info: Average 83 Distribution 4049 (2), 5059 (0), 6069 (4), 7079 (3), 8089 (2), 90100 (13).
How to compute your current letter grade: add the 10 quiz scores (100 possible), the 9 lab report scores (18
Physics 1201Q Practice Exam I Answers
1
Name: Answers
Instructions: Work all of the the following problems. Clearly and unambiguously circle the bullet in front of the
correct answer. The value of each problem appears in parentheses by the problem. You ma
Physics 1201 Study Guide Exam #1 scheduled for September 22, 2010
1
Physics 1201Q Study Guide for Exam One
Below is a summary of the six areas along with point weighting that the rst exam will cover. The exam will
consist of six 5 point conceptual questio
Physics 1201Q Practice Exam I
1
Name:
Instructions: Work all of the the following problems. Clearly and unambiguously circle the bullet in front of the
correct answer. The value of each problem appears in parentheses by the problem. You may use a calculat
Physics 1201 Homework #1
1
Physics 1201 Homework Assignment #1 Solutions
139 Earths equatorial radius is 6378 km. A spacecraft is in circular orbit 100 km above the equator. If the
satellite orbits every 86.5 minutes, whats its speed?
The radius of the or
Mechanical Energy
Mechnical Energy (Part I)
Emechanical = Upotential + Kkinetic
5. Work and Energy
54/104
Work, Kinetic Energy, Potential Energy
No Friction
The relationship between work and kinetic energy is
W = Knal Kinitial
The relationship between wor
5. Work and Energy
Professor H. L. Grubin
5. Work and Energy
1/53
What is Energy?
In physics, energy is a quantity that is often understood as the ability to perform
work.
This quantity can be assigned to any particle, object, or system of objects as a
co
11. Temperature, Thermal Expansion, Ideal Gases
& Thermodynamics
H. L. Grubin
11. Temperature, Expansion, Gases & Thermodynamics
1/79
What Questions Does Thermodynamics Address?
An egg drops and cracks, with the contents of the interior of the egg spreadi
All Objects Rolling Down an Incline Plane
For an incline of height h and an object of
radius R,mass m, starting from rest and
rolling without slipping, the velocity of the
center of mass at the end of the incline of
length x is:
s
2gh
vcm =
Icm
1 + mR2
An
8. Rotational Motion
Prof. H. L. Grubin
8. Rotational Motion
1/86
Translational and Rotational Motion
In pure translational motion, all points
on an object travel on parallel paths as
we see in the case of a jumper with
both an initial horizontal and vert
9. Gravitation
Prof. H. L. Grubin
9. Gravitation
1/45
Ancient Astronomy
The stars retain xed patterns but move
around the Earth.
The Sun, and Moon circle the Earth
from east to west.
Planets move from west to east except
when they dont and move from east
Newtons Second and Third Laws
Weight on a Moving Elevator - Scale Reads Normal Force
When an elevator moves with an acceleration a, the net force on a persons feet,
exerted by the oor of the elevator is the normal force, N.
If a scale is between the eleva
Torques and Coordinate Systems
We introduced torques in terms of a quantity
called a vector product.
Lets spend a little time on this and on its
signicance.
Perhaps the most important thing about the
vector denition of the torque is that it requires
use t
7. Oscillations
Prof. H. L. Grubin
7. Oscillations
1/18
Question: Ranking the Period of Oscillators
Which of the following choices
represents the correct ranking of the
oscillation periods?
A
B
C
D
Tb > Tc > Td > Ta > Te
Tb > Tc > Ta > Td > Te
Ta > Tb > T
Free fall and weightlessness
Being weightless does not imply the
absence of gravity!
Objects in uniform circular motion
continually accelerate or fall toward
the center of the circle, in order to
remain on the circular path.
The scale and the person on it
6. Momentum and Collisions
H. L. Grubin
6. Momentum and Collisions
1/30
Question: Impulse-Momentum Theorem
You are testing a new car using crash test dummies.
Consider two ways to slow the car from 90 km/h to a complete stop:
Case (1): You let the car sla
Olive Oil and Water Dont Mix
Incompressible Fluids
We have water an olive oil in a U-shaped tube
with identical cross-sectional areas.
On the left side
h2
PL = Patmosphere + water gh
Oil
If the height of the olive oil h2 = 0.1m nd the
difference in height
8. Rotational Motion
Prof. H. L. Grubin
8. Rotational Motion
1/22
Question:Tangential & Centripetal Acceleration
A ball attached to a string moves in a counter clockwise direction.
a
b
c
d
The direction of the centripetal acceleration
when it reaches poin
7. Oscillations
Prof. H. L. Grubin
7. Oscillations
1/53
Oscillations: Spring is StretchedThen Released
We have considered the expansion or
compression of springs that follow
Hookes Law:
d
d
m
F = kx
m
We have considered this when the
spring was situated i
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Force and Newtons Law
Instructor: Professor Harold. L. Grubin
University of Connecticut
Slide 1/55 Topic 4: Motion in Two Dimensions
What We Cover In This Lecture Topic
'
$
Newtons Laws
Force as a Vector
Newtons First Law
Newtons Third Law
Newtons Second
Motion in Two Dimensions
Kinematics, Scalars, Vectors, Displacement,
Distance, Velocity, Speed, Acceleration
Instructor: Professor Harold. L. Grubin
University of Connecticut
Slide 1/51 Topic 3: Motion in Two Dimensions
What We Cover In This Lecture Topic
Introduction & Measurements in Physics
Vectors, Reference Frames, Units,
Signicant Figures, Dimensional Analysis
Instructor: Professor Harold. L. Grubin
University of Connecticut
Slide 1/58 Topic 1: Introduction, Measurements, Evidence Based Analysis
What
Motion in One Dimension
Kinematics, Scalars, Vectors, Displacement,
Distance, Velocity, Speed, Acceleration
Instructor: Professor Harold. L. Grubin
University of Connecticut
Slide 1/49 Topic 2: Motion in One Dimension
What We Cover In This Lecture Topic
'
Introduction & Measurements in Physics
Vectors, Reference Frames, Units,
Signicant Figures, Dimensional Analysis
Instructor: Professor Harold. L. Grubin
University of Connecticut
Slide 1/58 Topic 1: Introduction, Measurements, Evidence Based Analysis
What
Chapter 1
An Introduction to Everything
http:/en.wikipedia.org/wiki/Physics
http:/en.wikipedia.org/wiki/Age of Enlightenment
http:/en.wikipedia.org/wiki/Trigonometry
http:/en.wikipedia.org/wiki/Area
http:/en.wikipedia.org/wiki/Volume
http:/en.wikipedia.or
Chapter 2
Vectors
http:/en.wikipedia.org/wiki/Real number
http:/en.wikipedia.org/wiki/Scalar (mathematics)
2.1
Scalars
In linear algebra
real numbers are scalars
Mass
Thermal
Fractions are
real numbers
Negative numbers
are real numbers
Trancendental numbe
Safety rules for the physics labs
Students must exercise ordinary care to be safe in the physics teaching labs. In general,
students should keep hands, clothing, and other objects away from the equipment while in use.
Students should wear close-toed shoes
13. Heat, Thermodynamics and Entropy
H. L. Grubin
13. Heat, Thermodynamics and Entropy
1/91
Heat Transfer
Heat as we have discussed is a mechanism by which energy is transferred by
means other than the mechanical means we have discussed earlier.
So lets s
Kolu Wynne
Graph 1: Period Versus semi-major axis for confirmed exoplanets
0.9
0.8
0.7
0.6
0.5
Semi-Major Axis (AU)
0.4
0.3
0.2
0.1
0
0
50
100
150
200
250
300
350
Period (Earth Days)
A. To create a scatter-plot using excel, enter the x values in one colum
Richa Jain
10/30/16
Pre Lab 8
[8.1]
a. The lever arm is the length or distance between the rotation/pivot point on the wrench to
the point where the mechanics force is applied.
b. The most torque will be provided at an angle of 90 degree. So, the force sh
Richa Jain
11/7/16
PreLab 9
[9.1]
1.
F=ma T m H g=mH a
2.
=r T sin
3.
T mH g=mH a
T =mH a+mH g
a= r
=r T sin
=r (m H a+mH g)sin
=r (a+ g)m H
=r ( r +g)mH
Richa Jain
Physics 1201Q
10/10/2016
Centripetal Force Formal Lab
I.
Abstract
In this lab, a model representing the motion of a swinging mass centripetal force was
derived and tested for accuracy. The resulting derivation related orbital period of the swin