PHY 2130
Class 2, 8/29
Section 001 (David Bowen)
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Lab 9 Report Rubric figure caption
Introduction:
This lab report is aimed at helping you write figure captions. Figures and charts are widely used in
technical writing to facilitate description and discussion; and they should be accompanied with a brief
c
Lab 3 Report Rubric data table
Introduction:
This lab report is aimed at helping you use table to present data. Using data table is a convenient technique to present and analyze data; when
used correctly, tables can help reader quickly understand abstract
Lab 10 Report Rubric writing abstract
The abstract of a technical document serves as a summary, which presents the conclusions and all results of general interest in the document. It
is usually one short paragraph, and does not include mathematical equati
Lab 4 Report Rubric data figure
Figures (also called data plots) are very frequently used in technical documents.
In this experiment, we collected light intensity data over a relative long range. Usually, not all data points need to be shown; instead, we
University Physics 2 Lab
Lawrence Technological University
LAB 4 INTERFERENCE AND DIFFRACTION
Goals:
Observe interference pattern from a double slit system
Measure interference pattern from a double slit system with different slit widths and separations
Lab 8 Report Rubric data table
Introduction:
This lab report is aimed at helping you use table to present data. Using data table is a convenient technique to present and analyze data; when
used correctly, tables can help reader quickly understand abstract
University Physics 2 Lab
Lawrence Technological University
LAB 10 - MAGNETIC FIELD MAPPING
Goals:
Investigate magnetic fields created by bar magnets
Investigate components of magnetic field (x and y components) from bar magnets
Investigate the Earths m
University 2 Physics Lab
Lawrence Technological University
LAB 9 - CAPACITORS AND RC CIRCUITS
Goals
To discover how the charge on a capacitor and the electric current change with time when a
charged capacitor is placed in a circuit with a resistor.
To d
University Physics 2 Lab
Lawrence Technological University
LAB 3 - LENSES
Goals :
Measure the focal lengths of converging lenses
Investigate the general lens formula (object distance, image distance and focal lengths)
Investigate the creation of an ima
Work Done by a Constant F (6.2)
For a constant Force F and a displacement r, work done by
the force = W Fr cos, angle between F and r (tail to
tail)
W is a scalar
Units: J Joule pronounced Jool
= 0 if = 90, is negative if > 90
Also, W = F/r = Fr/ : / mea
Chapter 7
Impulse and (Linear) Momentum
Summary
p mv: definition of momentum
In a collision between m1 and m2, (Newtons 2nd and 3rd Laws
)
Momentum is conserved
Momentum conservation follows from Newtons 2nd and 3rd
Laws.
Impulse (7.3)
Impulse: a hard, s
Blocks, Pulley and Ramp
m2 hangs free of ramp, m1 has
coefficient of kinetic friction mk
Separate x axes for m1 and m2
m1, y: +N m1gcos = 0
N = m1gcos and fk = mkN
m1, x: +T fk Wy = m1a
or T - mkm1gcosq - m1gsin = m1a
m2, x: -T + m2g = m2a
T = m1(a + g(m
Chapter 5
Circular Motion
Circular Motion (5.1)
Rotations
Many examples: auto (engine, tires), CD, jet turbine, disk drive,
motor, generator, etc.
Describe rotation with angle ,
angular displacement f i
positive counter-clockwise (ambiguous) or from +x
PHY 2130
Class 18, 10/8
Sections 001 & 004 (David Bowen)
Clickers out and ready when toolbar up!
Back Channel http:/TodaysMeet.com/Frameworks
Corrections on Slides 8, 9 and 10 in red
Force Framework Worksheet
Identifying forces: anything that touches + g
Framework Problem:
Energy Conservation
Wnc = U + K = Uf Ui + Kf Ki
Given four of the five directly, solve for fifrh
An object has 30 J of kinetic energy and 50 J of potential
energy. It then moves so that
-15 J of nonconservative work are done on it, and
Hookes Law for a spring: F = -kx (k in N/m)
Pull more, force is stronger
Pull spring one way, it pulls back in same line
relaxed position of spring (F = 0) x = 0
Example: find the acceleration of a 5.4 kg mass on the end of a
spring with k = 13.8 N/m
if
In Uniform Circular Motion,
all move in a fixed
relationship
tangent to path, as always
Magnitudes of all three are constant
Fits right into Newtons Second Law we know
and can use
this to find an F, or we know all Fs and can find r or v
Fnet = ma = mv2/r
Gravitational Potential Energy
U = potential energy, unit is J
Ugrav -Wgrav
Raise object against gravity a distance D
at angle wrt horizontal
Wgrav = Fr/ = -mgy so Ugrav = mgy
(uniform g, y axis up)
Conservative force: W on a round trip = 0
Other forms o