Wright State University Lake Campus/2015-9/Phy2410

 Phy 2410 Fall 2015 
 * 

Tue 9/1
Lab: Go through syllabus, expecially lab attendance

Help students in HTW: FHSST Physics/Rectilinear Motion/Graphs

Do question 3 of: How things work college course/Motion simple arithmetic quiz

Lecture:

Physics equations/07-Work and Energy/Q:lineIntegral

time permitting, look at How Things Works quiz.

Thu 9/3

 * 1) Learn how to navigate Wikiversity through links on Pilot
 * 2) Learn about the Millikan Oil Drop experiment through the internet
 * I am especially interested in the forces on the oil drop


 * Learn about and edit your Presidental Sandbox
 * User:Guy vandegrift/sandbox/03/Presidental sandboxes
 * This course (Fall 2410) uses sandbox 3
 * Get your president from the signup sheet for today's lab.
 * Your lab "report" is to write "hello world" (or something else) in your Presidental Sandbox.
 * Click the link, if it was red you get a "create page" banner that you can ignore.
 * Write something and go to the bottom of the page
 * Type anything into the Edit Summary and Save.
 * Oral reports (in groups) will occur at the next lab (Tuesday)

Tue 9/8
Lecture AM Lab: learn about the Millikan Oil drop experiment. Write your report in the pres. sandbox. Use page for figures and equations. Focus on these four topics: Electric Field  Force --- Charge ---Voltage Explain the equation Electric field * distance *cos(angle) = change in voltage
 * Labs

Another word for voltage is electric potential

Thu 9/10
Go to
 * Physics_and_Astronomy_Labs/Uniform_acceleration_tapping_basketball_with_spitwads


 * Instructions from that page:


 * 1) Write a one or two sentence summary of what you thought the the "How Things Work" folks did. Do not copy/paste their words unless you are confident you understand what they wrote.
 * 2) measure the slope with an uncertainty in the figure by hand. Keep in mind that "uncertainty" usually means one standard deviation, suggesting that typically 68% of the data points fall within your range.
 * Repeat using Excel and/or Matlab


 * 1) Explain the formulas governing this. Use pencil and paper on equations and sketches.  Put words into sandbox, referencing the equations and sketches.

Tue 9/15

 * Explain this effect
 * Assume knoledege of:
 * Electric field for linearly polarized light.
 * Component of a vector along a unit vector >$$\hat u$$ or ohter symbol

There is no need to cover this topic on Wikiversity because it is explained in many places. To name just a few:
 * Polarization_(waves) seems to be the most appropriate Wikipedia article
 * Khan Academy: Polarization of light-linear and circular
 * Physics Classroom - Polarization

Tue 9/22
Test review. No lab.

Thu 9/24
Test Review. No lab.

Tue 9/29
Ray optics 1

Thu 10/1
Ray optics 2

Tue 10/6
Ray drawings at

http://dev.physicslab.org/DocumentPrint.aspx?doctype=2&filename=GeometricOptics_ConvergingLensDiagrams.xml

next time: We already did the three polaroid filters. But we have not yet done:
 * 1) diffraction
 * 2) diagram on how a single polarizing filter works.
 * See Bell's theorem/Introduction and

Tue 10/13
Complete the ray drawing. The object is to your left. The first lens is convex (converging) and the second lens is concave (diverging). The focal points are shown as points.
 * 1) Measure the focal lengths of both lenses and write them down (in cm = centimeters)
 * 2) Measure the distance between the lenses and write that in cm.
 * 3) Measure the distance from the object to the first (converging) lens.
 * 4) Measure the height of the object.
 * 5) Complete the ray diagram for the first image, using only the converging lens.
 * 6) Measure the distance from the first lens to the image (cm) and also measure the height of the image.
 * 7) Now make this image the new object and calculate it's image using the diverging lens.
 * 8) How tall is the final image?
 * 9) How far is the final image from the diverging lens?
 * 10) Now do the calculation using the thin lens formula and the numbers you obtained in steps 1-4

Tue 10/20
Continue with Physics and Astronomy Labs/Optics: Human eye model (Pasco)
 * Front two groups put eye on metal cart when done.
 * All groups place water-filled eye in leak-proof container.
 * Recorded distance measurements between object and lens, between lens and image as well as image size.

Tue 11/3
phet circuit construction kit

Define voltage: V (volts or V as units)
 * Voltage is defined as a difference that exists between two points.
 * A voltage difference tends to "push" electrons through a wire.
 * On a roller coaster PE=mgh. Voltage, V, is "like" gh and charge, q, is "like" m.
 * Electric potential energy in Joules (J) is PE = U =
 * There is another analogy: Voltage is "like" pressure in a system of pipes carrying water.

Define current: I = dq/dt (amps or A)

State Ohm's Law: V = IR (volts or V)

Thu 11/5

 * Power = IV = dU/dt where U is energy. (Power is watts or Joules/second)
 * The voltage across a battery usually drops if the terminals are connected to a circuit (but not in the case of an "ideal" voltage source)
 * Class sketches the simplest possible graph of V versus I if V = 9 volts when I = 0, and V starts to gradually drop as current is drawn. On your graph, sketch the ideal situation as a dotted line.
 * Make your "model" as simple as possible by drawing it as a straight line.
 * Estimate magnitude of slope and include units.

Tue 11/10
Find power versus load resistance and for an emf of 9 volts and an internal resistance of 0.7 Ohms. Most efficient is to use P = V^2/R.

phet circuit construction kit

Links at bottom

 * get date
 * OpenStax College/University Physics
 * Physics_equations/Sheet/All_chapters
 * Pilot (course management system) (See Course Management System)
 * /Presidental sandboxes/